1990 Oldsmobile Cutlass Supreme Spark Plugs

Keep Your 1990 Oldsmobile Cutlass Supreme in Top Shape with Quality Spark Plugs

Whether you’re repairing or upgrading your Spark Plug, using high-quality parts is key to keeping your 1990 Oldsmobile Cutlass Supreme looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Spark Plugs and Spark Plug Non-Foulers. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Spark Plugs from Trusted Brands

Looking for a reliable Spark Plug? We’ve got you covered with options from brands you know and trust like DENSO, Autolite, and ACDelco. For example, DENSO Spark Plugs start at just $9.99 with an average 4.6 star rating. Autolite and ACDelco offer similar pricing and quality, backed by strong customer feedback. With over 3,762 reviews and a solid 5 star average, you can shop with confidence knowing other Oldsmobile Cutlass Supreme owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1990 Oldsmobile Cutlass Supreme Spark Plug at Advance Auto Parts is around $7.94, with a range that starts at $2.49 and goes up to $19.99. With 41 options in stock from 8 trusted brands, finding the right fit is easy. Popular picks like Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, Copper Core Spark Plug: Reliable Performance & Efficient Operation, and Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition start at just $6.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Spark Plug, don’t forget to check out other key components like Ignition Boots and Ignition Coils and Boots. At Advance Auto Parts, we’re here to help you keep your 1990 Oldsmobile Cutlass Supreme in peak condition, inside and out.

Essential 1990 Oldsmobile Cutlass Supreme Spark Plugs

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IQ16TT (Part No.4706)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IQ16TT

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$14.99
The Iridium TT Spark Plug combines the durability of an OE-style plug with the power and torque of high-performance engineering. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm needle tip ground electrode promotes higher spark energy and minimizes heat quenching. Built with DENSO’s patented Iridium-Rhodium alloy formula, it boasts the highest concentration of Iridium for unmatched durability, withstanding temperatures over 4000 Deg F. The advanced twin-tip technology, derived from OE Super Ignition Plug design, pairs a fine wire Iridium center electrode with a needle tip Platinum ground electrode for enhanced performance. Precision-crafted using DENSO’s 360-degree laser welding process, this spark plug ensures exceptional structural strength and quality. Designed for ultimate endurance, it delivers over 100,000 miles of reliable performance, improved fuel economy, and reduced emissions. With premium materials and a flat seat type, this spark plug is the perfect blend of endurance, efficiency, and power.

Product Features:
  • 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
  • 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
  • DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Durability of an OE style plug combined with Power and Torque of high performance.
  • Withstands temperatures greater than 4000 degree Fahrenheit
  • Iridium TT
  • Ultimate Endurance and Power: The DENSO Iridium TT Spark Plug features a 0.7mm Iridium Tip, ensuring over 100,000 miles of uncompromised performance.
  • Advanced Twin-Tip Technology: Developed from Original Equipment Specification Super Ignition Plug (SIP) design, combining a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode.
  • Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
  • Premium Materials: Features an Iridium Center Electrode Tip and a Flat Seat Type for optimal performance and durability.
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ACDelco – Copper Core Spark Plug: Reliable Performance & Efficient Operation (Part No.R44LTSM)

Copper Core Spark Plug: Reliable Performance & Efficient Operation

from

$6.29
ACDelco GM Original Equipment Conventional Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • High-Quality Copper Core: Designed with high-quality copper cores for reliable performance and efficient operation.
  • Nickel Center Electrode Tip: Features a nickel center electrode tip for enhanced durability and consistent performance.
  • Outstanding Suppression Characteristics: Engineered to deliver outstanding suppression characteristics, ensuring smooth engine operation.
  • OE Fit, Form, and Function: Manufactured to meet original equipment specifications for fit, form, and function, ensuring a perfect replacement for GM vehicles.
  • Versatile Applications: Providing a high-quality replacement for a wide range of vehicles.
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NGK – Iridium IX Spark Plug (TR5IX): Extreme Ignitability & Durability (Part No.7397)

Iridium IX Spark Plug (TR5IX): Extreme Ignitability & Durability

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$14.99
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Product Features:
  • SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
  • Outstanding Acceleration and High Fuel Efficiency: NGK Iridium IX spark plugs are engineered to deliver exceptional acceleration and improved fuel efficiency, making them ideal for performance enthusiasts.
  • Extreme Ignitability and Anti-Fouling: These spark plugs offer extreme ignitability and exceptional resistance to fouling, ensuring reliable performance in various driving conditions.
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Accel – Shorty Copper Spark Plug (0437S): Enhanced Clearance & Heat Dissipation (Part No.8197)

Shorty Copper Spark Plug (0437S): Enhanced Clearance & Heat Dissipation

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$51.99
ACCEL’s patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are capable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.

Product Features:
  • Eliminates Dimpling Headers For Added Clearance
  • Improves Spark Plug Access To Fit Socket Or Wrench
  • Shorter Overall Plug Length Vs. OE Style Plug
  • Copper Core Center Electrode
  • Projected Tip
  • Helps Eliminate Burned Spark Plug Boots
  • Shorty Header Spark Plug
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ACDelco – Copper Core Spark Plug: Reliable Performance & Durability (Part No.R46SZ)

Copper Core Spark Plug: Reliable Performance & Durability

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$6.29
ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

Product Features:
  • Black Onyx coating helps reduce corrosion
  • Copper core provides great heat transfer and helps maximize plug durability
  • Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
  • Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
  • Available for use in Marine applications
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • High-Quality Copper Core: ACDelco Professional Conventional Spark Plugs feature high-quality copper cores, ensuring reliable performance and efficient operation.
  • Nickel Center Electrode Tip: Designed with a nickel center electrode tip, these spark plugs provide durability and consistent performance.
  • Outstanding Suppression Characteristics: These spark plugs offer excellent suppression characteristics, contributing to their reliable performance in various driving conditions.
  • Premium Aftermarket Replacement: Manufactured to meet expectations for fit, form, and function, these spark plugs serve as a high-quality replacement for original equipment.
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ACDelco – RAPIDFIRE Platinum Spark Plug: Reduces Misfires & Maximizes Durability (Part No.10)

RAPIDFIRE Platinum Spark Plug: Reduces Misfires & Maximizes Durability

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$7.99
ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:
  • Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
  • Pure copper core provides great heat transfer and helps maximize plug durability
  • Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
  • Ribless insulator helps optimize plug to boot seal
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
  • High-Quality Suppressors: ACDelco Gold RAPIDFIRE Spark Plugs feature high-quality suppressors that help prevent misfiring, ensuring smooth and reliable engine performance.
  • Single Platinum Performance: Designed with a platinum center electrode tip, these spark plugs offer enhanced durability and consistent performance for everyday use.
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Motorcraft – Spark Plug: Enhanced Durability & Optimized Performance (Part No.SP-439-AX)

Spark Plug: Enhanced Durability & Optimized Performance

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$12.99
Motorcraft Spark Plugs are precision-engineered to meet strict Ford standards, ensuring original equipment performance and reliability for Ford, Lincoln, and Mercury vehicles. Designed with a fine wire platinum center electrode and platinum ground electrode tip, these spark plugs deliver enhanced durability, reduce fuel consumption, and optimize emissions. The multi-rib insulator protects against misfires, while the tapered seat type ensures an exact fit for seamless installation. Resistant to oxidation and arc erosion, they are built to withstand service intervals of up to 100,000 miles, providing long-lasting performance and confidence on the road. Backed by Motorcraft’s Service Parts Warranty, these spark plugs help prevent false check engine lights and maintain peak engine efficiency. Crafted with high-quality materials, they are ideal for a broad range of applications, including domestic and import cars and trucks, making them a reliable choice for drivers seeking durability and optimized performance.

Product Features:
  • Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
  • Backed by Motorcraft’s Service Parts Warranty
  • Exact fit for Ford, Lincoln and Mercury vehicles
  • Resistant to oxidation and arc erosion.
  • Multi-rib insulator protects against misfire.
  • Service intervals of up to 100,000 miles.
  • Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
  • Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
  • Motorcraft ignition components help prevent false check engine lights.
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E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.56)

DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency

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$8.49
The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “diamond-shaped” side wire electrode enhances combustion by igniting the air/fuel mixture more quickly, resulting in a larger flame kernel and improved power output – up to 6% on average. Designed with nickel center and ground electrode tips, this spark plug offers durability and consistent performance. Its cleaner-burning combustion reduces engine carbon deposits and promotes fuel savings, making it an eco-friendly choice. Pre-gapped at the factory for hassle-free installation, this spark plug is a perfect blend of advanced technology and convenience, ensuring your engine runs at its best.

Product Features:
  • E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn
  • Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
  • Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
  • Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
  • E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
  • The Spark Plugs are pre-gapped at the factory and cannot be adjusted.
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Champion – Double Platinum Power Spark Plug (RS14PMPB5): Enhanced Durability & Performance (Part No.7983)

Double Platinum Power Spark Plug (RS14PMPB5): Enhanced Durability & Performance

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$6.99
The Double Platinum Power Spark Plug is engineered for enhanced durability and performance, making it a premium choice for reliable ignition. Featuring a fine-wire platinum center electrode and a platinum pad ground electrode, this spark plug ensures greater wear resistance and sharper spark focus for consistent power delivery. Its Heat-Active alloy design allows the electrodes to maintain optimal operating temperatures under all engine loads, ensuring stable performance in demanding conditions. The V-trimmed ground electrode further enhances ignitability, promoting a more efficient and powerful spark. Designed as a standard replacement, this spark plug is equipped with a tapered seat and resistor type for compatibility with a wide range of vehicles. Whether you’re looking for improved engine efficiency or long-lasting durability, this spark plug delivers exceptional value and performance.

Product Features:
  • Double Platinum Power – Premium Spark Plug. More Powerful Performance.
  • Platinum center and ground electrode for greater wear resistance
  • Maintains stable operating temperature under all engine loads
  • Fine-wire center electrode for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Heat-Active alloy allows electrodes to reach optimal temperature
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NGK – Laser Iridium Spark Plug (ITR5H13): Fine Wire Tip for Precision (Part No.97287)

Laser Iridium Spark Plug (ITR5H13): Fine Wire Tip for Precision

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$23.99
NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Most Laser Iridium spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire iridium alloy center electrode provides consistent performance
  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Best for vehicles with OE fine wire iridium alloy plugs
  • Superior Durability: The iridium-tipped center electrode is six times harder than platinum, ensuring long-lasting performance.
  • OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring a perfect fit and optimal performance.
  • Even Wear: Features a platinum pad on the ground electrode for even wear, particularly beneficial in distributorless ignition systems.
  • Fine Wire Tip Design: The fine wire tip design of the ITR5H13 model enhances ignition efficiency and performance.
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Accel – High-Performance Shorty Spark Plug: Enhanced Clearance & Heat Dissipation (Part No.8199)

High-Performance Shorty Spark Plug: Enhanced Clearance & Heat Dissipation

from

$57.99
ACCEL’s patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are capable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.

Product Features:
  • Shorty Spark Plugs For Tubular Exhaust Headers
  • Eliminates Dimpling Headers For Added Clearance
  • Improves Spark Plug Access To Fit Socket Or Wrench
  • Shorter Overall Plug Length Vs. OE Style Plug
  • Copper Core Center Electrode
  • Projected Tip
  • Helps Eliminate Burned Spark Plug Boots
  • Shorty Header Spark Plug
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Champion – Iridium Spark Plug (RC11WYPB5): Maximum Performance & Longevity (Part No.9008)

Iridium Spark Plug (RC11WYPB5): Maximum Performance & Longevity

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$8.49
Iridium Spark Plug (RC11WYPB5) is engineered for maximum performance and exceptional longevity, making it a premium choice for demanding drivers. Featuring a fine-wire iridium center electrode and iridium-platinum ground electrode, this spark plug delivers unparalleled ignitability and durability. The V-trimmed ground electrode ensures sharper spark focus, while the Heat-Active alloy allows the electrodes to quickly reach optimal operating temperatures, maintaining stable performance under all engine loads. Designed with a flat seat type and integrated resistor, it provides reliable functionality across a wide range of applications. Whether you’re seeking enhanced engine efficiency or consistent ignition, this performance-grade spark plug is built to deliver.

Product Features:
  • Champion Iridium – Maximum Performance. Premium Spark Plug
  • Iridium center electrode delivers maximum life
  • Fine-wire center electrode and V-trimmed for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Maintains stable operating temperature under all engine loads
  • Heat-Active alloy allows electrodes to reach optimal temperature quickly
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DENSO – U-Groove Spark Plug: OE Performance, T16EPR-U15 (Part No.5023)

U-Groove Spark Plug: OE Performance, T16EPR-U15

from

$3.49
The U-Groove Spark Plug with its patented U-groove ground electrode design ensures superior ignitability, allowing your engine to fire leaner mixtures for enhanced efficiency and performance. Built with a durable nickel center electrode tip, it delivers long-lasting performance while improving fuel consumption and emission gas purification. Precision machine-rolled threads minimize the risk of seizing or cross-threading, making it ideal for use in delicate aluminum heads. Designed to last twice as long as most conventional plugs, this spark plug is 100% pre-fired to guarantee reliable operation from the start. Its tapered seat type ensures a secure fit, and with a wide range of part numbers available, its compatible with thousands of applications, including classic and collector cars. Whether you’re maintaining a daily driver or restoring a vintage vehicle, this spark plug offers OE performance and exceptional value.

Product Features:
  • Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
  • Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
  • Wide range of part numbers for thousands of applications, including classic and collector cars
  • Lasts twice as long as most conventional plugs
  • 100 percent pre-fired to assure reliable operation
  • U-Groove Conventional
  • Durable Nickel Center Electrode Tip: Provides long-lasting performance and improved efficiency in emission gas purification and fuel consumption.
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Autolite Iridium – Iridium Ultra Fine Wire Spark Plug: Laser-Welded for Precision (Part No.AI5245)

Iridium Ultra Fine Wire Spark Plug: Laser-Welded for Precision

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$10.99
Autolite Iridium Ultra Laser Fine wire Spark Plugs are one of our brand’s most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world.

Product Features:
  • Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.
  • A laser-welded 0.5mm pure iridium finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.
  • Nickel-plated shell to resist corrosion.
  • High-alumina ceramic insulator for increased strength.
  • Laser welded 0.5mm Iridium finewire center electrode.
  • Proprietary platinum sidewire technology.
  • Superior Durability: Autolite Iridium Ultra Laser Fine wire Spark Plugs are designed for long-lasting performance, ensuring your vehicle runs smoothly over extended periods.
  • OE Fit and Function: Autolite Spark Plugs offer an original equipment (OE) fit, form, and function, making them a reliable alternative for all foreign and domestic makes and models.
  • Technologically Advanced: As one of Autolite’s most advanced products, these spark plugs incorporate cutting-edge technology for superior performance.
  • Value Pricing: Despite their advanced features and high quality, Autolite Iridium Ultra Laser Fine wire Spark Plugs are available at a value price, making them an economical choice for vehicle maintenance.
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Dorman – Help – Spark Plug Non-Foulers – 14mm Gasket Seat Long Reach (Part No.42004)

Spark Plug Non-Foulers - 14mm Gasket Seat Long Reach

from

$9.99
This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
  • Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
  • Durable construction – made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Most Popular Spark Plugs for 1990 Oldsmobile Cutlass Supremes

Enhance your 1990 Oldsmobile Cutlass Supreme with one of the 40 Spark Plugs we have in stock, starting at just $2.49.

Autolite – Platinum Spark Plug (AP3924): Improved Performance & Durability (Part No.AP3924)

Platinum Spark Plug (AP3924): Improved Performance & Durability

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$4.99
The Autolite Platinum spark plug is a high-performance solution designed to enhance your engine’s efficiency and longevity. Featuring a platinum center electrode firing tip, it ensures quicker firing, smoother starts, and improved fuel efficiency while resisting gap erosion for an extended service life. Its high alumina ceramic insulator provides excellent thermal conductivity and superior insulation, boosting overall strength and reliability. The multi-rib insulator design prevents flash-over, while the nickel-plated shell offers exceptional corrosion resistance, ensuring durability even in demanding conditions. With a mid-projection standard center electrode and a flat seat type, this spark plug is tailored for optimal performance in older engine designs. The combination of a platinum tip and nickel ground electrode makes it a dependable choice for those seeking enhanced acceleration and long-lasting performance. Whether you’re maintaining or upgrading, this performance-grade spark plug delivers exceptional value and reliability.

Product Features:
  • Engineered with a platinum firing tip that prevents gap erosion for longer service life.
  • Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • The multi-rib insulator prevents flash-over.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
  • Incorporates a mid-projection center electrode and flat seat type, optimizing compatibility and performance in older engine designs.
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DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK16TT (Part No.4701)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK16TT

from

$12.99
Experience the perfect blend of durability and high performance with this spark plug, designed to deliver exceptional power and torque. Featuring a 0.4mm Iridium Center Electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm Needle Tip Ground Electrode enhances spark energy and minimizes heat quenching. Built with DENSO’s patented Iridium-Rhodium alloy formula, it boasts the highest concentration of Iridium for unmatched durability, enduring temperatures over 4000 Deg F. The advanced 360-degree laser welding process ensures a robust bond and structural integrity, while the Twin-Tip Technology combines a fine wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode for superior ignition. With over 100,000 miles of reliable performance, this plug enhances fuel economy, reduces emissions, and is crafted from premium materials for long-lasting endurance. Designed with a flat seat type, it offers OE-style reliability with the added benefits of cutting-edge engineering.

Product Features:
  • 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
  • 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
  • DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Durability of an OE style plug combined with Power and Torque of high performance.
  • Withstands temperatures greater than 4000 degree Fahrenheit
  • Iridium TT
  • Ultimate Endurance and Power: The DENSO Iridium TT Spark Plug features a 0.7mm Iridium Tip, ensuring over 100,000 miles of uncompromised performance.
  • Advanced Twin-Tip Technology: Developed from Original Equipment Specification Super Ignition Plug (SIP) design, combining a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode.
  • Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
  • Premium Materials: Features an Iridium Center Electrode Tip and a Flat Seat Type for optimal performance and durability.
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Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP3924)

Double Platinum Spark Plug: Enhanced Durability & Performance

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$6.99
Double Platinum Spark Plug offers enhanced durability and performance with its platinum-to-platinum design, effectively reducing gap erosion and minimizing misfires for a longer service life. Engineered for distributor-less ignition system (DIS) engines, it outperforms copper and standard platinum plugs. The yttrium-enhanced ground electrode ensures superior heat transfer, maintaining durability under high temperatures and pressure. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. Featuring a mid-projection center electrode and flat seat type, this performance-grade spark plug is built with platinum-tipped electrodes for consistent ignition and lasting reliability. Designed to deliver exceptional value, it is a dependable choice for those seeking improved engine efficiency and longevity.

Product Features:
  • Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
  • The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
  • Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
  • The multi-rib insulator prevents flash-over.
  • Designed with a mid-projection center electrode and flat seat type to ensure consistent ignition and reliable performance in demanding conditions.
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DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK16 (Part No.5303)

Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK16

from

$9.99
The Iridium Power Spark Plug is engineered for the most demanding automotive enthusiasts, delivering no-compromise performance and reliability. Featuring a patented U-groove ground electrode design, it ensures efficient ignition even with leaner fuel mixtures, outperforming conventional plugs. Its iridium center electrode tip offers exceptional durability, withstanding extreme temperatures exceeding 4000 Deg F and lasting twice as long as standard plugs. Precision machine-rolled threads minimize the risk of seizing or cross-threading, making it ideal for delicate aluminum heads. With a flat seat type and a wide range of part numbers, this spark plug is compatible with thousands of applications, including classic and collector cars. Whether you’re on the track or the road, this top-of-the-line spark plug delivers unmatched performance and longevity, making it a valuable upgrade for any serious driver.

Product Features:
  • World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
  • Patented 360-degree laser welding assembly process
  • U-groove and taper cut ground electrode to maximize flame propagation.
  • Withstands temperatures greater than 4000 degree Fahrenheit
  • Burnished nickel plating for high temperature endurance and superior corrosion resistance
  • Wide range of part numbers for thousands of applications, including classic and collector cars
  • Iridium Power
  • Superior Performance: Engineered for maximum performance under extreme conditions, this spark plug delivers more horsepower, faster and easier starts, and fewer misfires under heavy loads.
  • Enhanced Fuel Efficiency: Thanks to its advanced design and patented technology, the Iridium Power plug improves fuel efficiency, making it an economical choice for your vehicle.
  • Low Voltage Requirement: The DENSO Iridium Power spark plug requires 5,000 volts less to fire compared to conventional spark plugs, ensuring reliable ignition with lower energy consumption.
  • Durable Iridium Material: Constructed with a durable iridium center electrode tip and a flat seat type, this spark plug offers long-lasting performance and reliability.
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NGK – V-Power Nickel Spark Plug (FR4): Enhanced Ignitability & Reliability (Part No.5155)

V-Power Nickel Spark Plug (FR4): Enhanced Ignitability & Reliability

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$5.99
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
  • RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
  • NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
  • OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance in your vehicle.
  • Reliable Performance: NGK V-Power spark plugs deliver consistent and reliable performance, making them a dependable choice for maintaining your vehicle’s engine efficiency.
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DENSO – Iridium Long-Life Spark Plug: OE Performance, SK16PR-L11 (Part No.3395)

Iridium Long-Life Spark Plug: OE Performance, SK16PR-L11

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$19.99
The Iridium Long-Life Spark Plug is engineered to meet the highest OE standards for performance, durability, and emissions. Featuring DENSO’s patented Iridium Alloy with a fine wire center electrode, it delivers sustained spark performance for over 100,000 miles, lasting up to three times longer than conventional plugs. Its platinum ground electrode and 360-degree laser welding process ensure exceptional structural strength and reliability, even under extreme temperatures exceeding 4,000 Deg F. Designed for enhanced engine performance, this spark plug provides more horsepower, quicker starts, and fewer misfires, even under heavy loads. Additionally, it promotes fuel efficiency, making it a cost-effective choice for long-term use. With a flat seat type and iridium center electrode tip, this spark plug is built for durability and optimal performance in high-performance ignition systems.

Product Features:
  • Latest OE technology with DENSO’s patented Iridium Alloy (90 percent Ir) and fine wire center electrode
  • Platinum ground electrode for extended life
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Sustained spark performance over 100,000 miles
  • Lasts up to three times as long as conventional plugs
  • Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
  • Iridium Long Life
  • Enhanced Engine Performance: Enjoy more horsepower, faster and easier starts, and fewer misfires under heavy loads, thanks to the advanced design and materials used in the DENSO Iridium Long Life plug.
  • Fuel Efficiency: This spark plug not only boosts engine performance but also helps in better conservation of fuel, making it an economical choice for long-term use.
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NGK – V-Power Nickel Spark Plug (TR4): Enhanced Ignitability & Performance (Part No.3754)

V-Power Nickel Spark Plug (TR4): Enhanced Ignitability & Performance

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$6.99
NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK’s V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK’s legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.

Product Features:
  • ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
  • RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
  • NGK’s OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • Enhanced Ignitability: The V-cut nickel alloy center electrode and concave ground electrode design of NGK V-Power spark plugs provide quicker starts and smoother idle.
  • OE Application Specific: Engineered specifically for Original Equipment (OE) applications, ensuring compatibility and reliable performance.
  • V-Groove Tip Design: The unique V-Groove tip design of the TR4 model enhances ignitability and overall engine performance.
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Motorcraft – Double Platinum Spark Plug: Enhanced Durability & Reliability (Part No.SP-485)

Double Platinum Spark Plug: Enhanced Durability & Reliability

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$4.79
Double Platinum Spark Plug by Motorcraft is engineered to deliver exceptional durability and reliability, making it the ideal choice for Ford, Lincoln, and Mercury vehicles. Designed with platinum center and ground electrode tips, these spark plugs resist oxidation and arc erosion, ensuring long-lasting performance. The multi-rib insulator minimizes misfires, while the gasket seat type guarantees a precise fit. With service intervals of up to 100,000 miles, these spark plugs optimize emissions, reduce fuel consumption, and eliminate misfires, providing a smoother driving experience. Backed by Motorcraft’s Service Parts Warranty, they are crafted from high-quality materials to meet strict Ford engineering standards, offering original equipment performance for a wide range of domestic and import cars and trucks. Motorcraft ignition components also help prevent false check engine lights, giving you confidence in your vehicle’s reliability. These spark plugs are what your vehicle was equipped with at the factory, ensuring compatibility and peace of mind.

Product Features:
  • Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
  • Backed by Motorcraft’s Service Parts Warranty
  • Exact fit for Ford, Lincoln and Mercury vehicles
  • Resistant to oxidation and arc erosion.
  • Multi-rib insulator protects against misfire.
  • Service intervals of up to 100,000 miles.
  • Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
  • Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
  • Motorcraft ignition components help prevent false check engine lights.
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Dorman – Help – Spark Plug Non-Foulers – 14mm Tapered Seat (Part No.42008)

Spark Plug Non-Foulers - 14mm Tapered Seat

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$10.49
This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
  • Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
  • Durable construction – made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Motorcraft – Spark Plug: Long Service Intervals & High-Strength Durability (Part No.SP-406)

Spark Plug: Long Service Intervals & High-Strength Durability

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$2.49
The Spark Plug, designed for Ford, Lincoln, and Mercury vehicles, is the trusted choice recommended by Ford Motor Company. Engineered for exceptional durability, it features a high-strength steel high thread construction and advanced materials like platinum-iridium and fine-wire double platinum, ensuring reliable performance over extended service intervals of up to 100,000 miles. For standard applications, options include nickel and standard copper core, offering up to 60,000 miles of dependable use. Its gasket seat type ensures a secure fit, optimizing combustion efficiency and engine performance. This spark plug delivers long-lasting value and compatibility, making it an essential component for maintaining your vehicle’s peak performance.

Product Features:
  • Optimized Combustion Efficiency: The gasket seat type ensures a secure fit, enhancing combustion efficiency for improved engine performance.
  • Trusted Compatibility: Specifically designed for Ford, Lincoln, and Mercury vehicles, ensuring seamless integration and reliable operation.
  • Long Service Intervals: 100,000 mile service interval, High-Strength Steel High Thread, Platinum-Iridium, Fine-Wire Double Platinum, 60,000-100,000 mile service interval, Up to 60,000 mile service interval: Nickel, Standard Copper Core.
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ACDelco – Copper Core Spark Plug: Reliable Performance & Efficient Operation (Part No.R44LTSM)

Copper Core Spark Plug: Reliable Performance & Efficient Operation

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$6.29
ACDelco GM Original Equipment Conventional Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.

Product Features:
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • High-Quality Copper Core: Designed with high-quality copper cores for reliable performance and efficient operation.
  • Nickel Center Electrode Tip: Features a nickel center electrode tip for enhanced durability and consistent performance.
  • Outstanding Suppression Characteristics: Engineered to deliver outstanding suppression characteristics, ensuring smooth engine operation.
  • OE Fit, Form, and Function: Manufactured to meet original equipment specifications for fit, form, and function, ensuring a perfect replacement for GM vehicles.
  • Versatile Applications: Providing a high-quality replacement for a wide range of vehicles.
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Autolite – Platinum Spark Plug: Improved Performance & Durability (Part No.AP5245)

Platinum Spark Plug: Improved Performance & Durability

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$4.99
Autolite Platinum spark plugs are crafted for superior performance and durability, making them ideal for older engine applications. Featuring a platinum center electrode firing tip, these spark plugs ensure quicker firing, smoother starts, and enhanced fuel efficiency. The platinum design prevents gap erosion, extending service life, while the high alumina ceramic insulator offers excellent thermal conductivity and insulation for added strength. A multi-rib insulator minimizes flash-over, and the nickel-plated shell resists corrosion for long-lasting reliability. With a standard center electrode design and long projection, these performance-grade spark plugs deliver consistent ignition and improved acceleration. The tapered seat type and resistor functionality further enhance compatibility and efficiency, making them a dependable choice for maintaining engine health and optimizing performance.

Product Features:
  • Engineered with a platinum firing tip that prevents gap erosion for longer service life.
  • Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • The multi-rib insulator prevents flash-over.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
  • The tapered seat type design ensures optimal compatibility and improved efficiency, contributing to reliable engine performance.
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E3 – DiamondFIRE Spark Plug: More Power & Fuel Efficiency (Part No.E3.48)

DiamondFIRE Spark Plug: More Power & Fuel Efficiency

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$8.49
The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “diamond-shaped” side wire electrode enhances combustion by quickly igniting the air/fuel mixture, resulting in a larger and faster flame kernel. This translates to improved power output – up to 6% on average – and better fuel efficiency, saving you money while reducing engine carbon deposits. Constructed with durable nickel center and ground electrode tips, this spark plug is built to last. Pre-gapped at the factory for hassle-free installation, it provides consistent, reliable performance. With its advanced design, this spark plug maximizes the energy from every drop of fuel, making it an excellent choice for drivers seeking enhanced power, efficiency, and longevity.

Product Features:
  • E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn.
  • Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
  • Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
  • Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
  • E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
  • The Spark Plugs are pre-gapped at the factory and cannot be adjusted.
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DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT16TT (Part No.4713)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT16TT

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$13.99
The Iridium TT Spark Plug combines the durability of an OE-style plug with the power and torque of high-performance engineering, making it a standout choice for drivers seeking reliability and efficiency. Featuring a 0.4mm Iridium center electrode – the world’s smallest diameter – it maximizes firing potential, while the 0.7mm needle tip ground electrode promotes higher spark energy and minimizes heat quenching. Built with DENSO’s patented Iridium-Rhodium alloy formula, it boasts the highest concentration of Iridium for unmatched durability, withstanding temperatures over 4000 Deg F. The advanced Twin-Tip Technology pairs a fine wire Iridium center electrode with a needle tip Platinum ground electrode, ensuring superior ignition and fuel efficiency. Designed to enhance fuel economy and reduce emissions, this spark plug allows you to drive farther with fewer stops. Developed to original equipment specifications and utilizing a 360-degree laser welding process, it guarantees exceptional structural strength and consistent performance. Perfect for those who demand endurance and power in every drive.

Product Features:
  • 0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
  • 0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
  • DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Durability of an OE style plug combined with Power and Torque of high performance.
  • Withstands temperatures greater than 4000 degree Fahrenheit
  • Iridium TT
  • Advanced Twin-Tip Technology: Combines a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode for superior ignition and efficiency.
  • Enhanced Fuel Economy and Lower Emissions: Designed to provide better fuel economy and reduced emissions, allowing you to drive around the Earth over 4 times.
  • Original Equipment Specification: Developed from the Super Ignition Plug (SIP) design, ensuring reliable and consistent performance.
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Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (Part No.3924)

Copper Resistor Spark Plug: Quick Starts & Enhanced Durability

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$4.99
Autolite Copper spark plugs are crafted to ensure reliable performance and durability for your vehicle or application. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes are designed for extended life, while the mid-projection center electrode enhances ignition efficiency. Built with a high alumina multi-rib ceramic insulator, these plugs offer superior thermal conductivity and insulation, boosting strength and reliability. The nickel-plated shell provides exceptional corrosion resistance, making them ideal for long-term use. With a flat seat type and integrated resistor, these spark plugs deliver quick starts and meet performance expectations, offering great value for regular-grade applications.

Product Features:
  • The copper core center electrode aids in thermal control and improves resistance to fouling.
  • Its specially engineered high nickel alloy center and ground electrode provides extended life.
  • The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
  • The integrated resistor ensures quick starts and optimized performance, making it a reliable choice for regular-grade applications.
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Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP5245)

Double Platinum Spark Plug: Enhanced Durability & Performance

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$6.99
Autolite Double Platinum spark plugs are engineered for exceptional durability and performance, making them a reliable choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, these spark plugs effectively prevent gap erosion, reduce misfires, and extend service life. The yttrium-enhanced ground electrode ensures superior heat transfer, allowing the spark plug to withstand high temperatures and pressures for greater longevity. With a high alumina ceramic insulator, these plugs deliver optimal thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for consistent performance. Designed with a long projection center electrode and tapered seat type, these spark plugs offer precision and efficiency. Autolite’s trusted quality is backed by over 11 billion plugs sold, ensuring you get proven reliability in every product. Ideal for performance-grade applications, these spark plugs are crafted with platinum center and ground electrode tips for enhanced durability and superior ignition performance.

Product Features:
  • Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
  • The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
  • Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
  • The multi-rib insulator prevents flash-over.
  • Exceptional Quality: With more than 11 billion plugs sold, Autolite delivers trusted and proven quality in every spark plug.
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Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Reliability (Part No.5245)

Copper Resistor Spark Plug: Quick Starts & Enhanced Reliability

from

$3.99
Autolite Copper spark plugs are designed to provide reliable performance and meet the demands of your vehicle with precision engineering. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, ensuring consistent operation. The high nickel alloy center and ground electrodes deliver extended life, while the high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation for added strength. With a nickel-plated shell, these spark plugs resist corrosion, offering long-lasting durability. Engineered for quick starts, they improve your vehicle’s reliability and performance, while optimizing fuel efficiency to help you save on costs. The long projection center electrode and tapered seat design ensure a secure fit and smooth operation. Experience smoother acceleration and a more responsive driving experience with Autolite Copper spark plugs, a dependable choice for maintaining excellent engine performance.

Product Features:
  • The copper core center electrode aids in thermal control and improves resistance to fouling.
  • Its specially engineered high nickel alloy center and ground electrode provides extended life.
  • The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
  • Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
  • Quick Starts: The Autolite Copper Spark Plug ensures quick engine starts, enhancing your vehicle’s reliability and performance.
  • Good Fuel Economy: Designed to optimize fuel efficiency, these spark plugs help you save on fuel costs while maintaining excellent engine performance.
  • Smooth Acceleration: Experience smoother acceleration with the high-quality engineering of Autolite Copper Spark Plugs, providing a more responsive driving experience.
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DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT16 (Part No.5325)

Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT16

from

$9.99
The Iridium Power Spark Plug features the world’s smallest Iridium Center Electrode at just 0.4mm, delivering unmatched spark precision for maximum combustion efficiency. Engineered with a patented 360-degree laser welding assembly process, this spark plug ensures exceptional durability and reliability under extreme conditions. Its U-groove and taper-cut ground electrode design optimizes flame propagation, enhancing engine performance and fuel efficiency. Built to withstand temperatures exceeding 4000 Deg F, it is burnished with nickel plating for superior high-temperature endurance and corrosion resistance. Designed for versatility, it offers a wide range of part numbers to fit thousands of applications, including classic and collector cars. With its Iridium tip and tapered seat type, this spark plug is the ultimate choice for drivers seeking maximum spark energy, durability, and long-lasting performance.

Product Features:
  • World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
  • Patented 360-degree laser welding assembly process
  • U-groove and taper cut ground electrode to maximize flame propagation.
  • Withstands temperatures greater than 4000 degree Fahrenheit
  • Burnished nickel plating for high temperature endurance and superior corrosion resistance
  • Wide range of part numbers for thousands of applications, including classic and collector cars
  • Iridium Power
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Champion – Copper Plus Spark Plug (RC9YC): Dependable Performance & Durability (Part No.344)

Copper Plus Spark Plug (RC9YC): Dependable Performance & Durability

from

$4.99
The Copper Plus Spark Plug delivers dependable performance and durability, making it a reliable choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures enhanced conductivity and precise heat control, promoting good overall wear and extending the spark plug’s lifespan. Built to ISO and SAE Standards, this spark plug guarantees proven performance and superior corrosion resistance, even in demanding conditions. Its nickel center electrode tip and flat seat design provide consistent and reliable ignition, making it an ideal standard replacement for your vehicle. With a focus on durability and functionality, this spark plug is engineered to optimize heat range control, ensuring longer life and consistent performance. Whether you’re looking for enhanced heat management or reliable ignition, this spark plug offers exceptional value and quality.

Product Features:
  • Copper Plus – Dependable Performance and Durability
  • Copper core center electrode allows for accurate control of heat range for longer life
  • Superior corrosion resistance
  • Built to ISO and SAE standards for proven performance
  • Built to ISO and SAE standards for proven performance
  • Enhanced Conductivity and Heat Control: The Champion Copper Plus Spark Plug features a copper core electrode that provides increased conductivity and heat control, ensuring good overall wear and extending the spark plug’s life.
  • Nickel Center Electrode Tip: Equipped with a nickel center electrode tip and a flat seat type, this spark plug ensures consistent and reliable performance.
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ACDelco – RAPIDFIRE Spark Plug: Enhanced Durability & Performance (Part No.5)

RAPIDFIRE Spark Plug: Enhanced Durability & Performance

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$7.99
ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:
  • Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
  • Pure copper core provides great heat transfer and helps maximize plug durability
  • Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
  • Ribless insulator helps optimize plug to boot seal
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
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ACDelco – Double Platinum Spark Plug: Long-Lasting Performance & Durability (Part No.41-800)

Double Platinum Spark Plug: Long-Lasting Performance & Durability

from

$10.99
ACDelco Professional Double Platinum Spark Plugs are premium aftermarket plugs, and are a high quality replacement for many vehicles on the road today. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

Product Features:
  • One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
  • Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
  • Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Champion – Platinum Power Spark Plug (RC9PYC): Powerful Performance & Durability (Part No.3344)

Platinum Power Spark Plug (RC9PYC): Powerful Performance & Durability

from

$4.99
Champion Platinum Power spark plugs are engineered to deliver exceptional performance and durability, making them a reliable choice for your vehicle. Featuring a platinum center electrode, these spark plugs ensure long-lasting performance and resistance to wear, maintaining the proper gap specification throughout their lifespan. The fine-wire center electrode enhances ignitability, while the V-trimmed ground electrode sharpens spark focus for optimal combustion. Constructed with the exclusive Heat-Active alloy, these plugs quickly reach and maintain the ideal operating temperature, ensuring consistent performance under various driving conditions. Designed as a standard replacement, they feature a flat seat type and a nickel ground electrode tip for dependable functionality. With a built-in resistor, these spark plugs help reduce electromagnetic interference, making them a smart choice for maintaining engine efficiency and smooth operation. Whether you’re looking for powerful performance or extended durability, these spark plugs deliver exceptional value for your vehicle.

Product Features:
  • Platinum Power- Premium Spark Plug. Powerful Performance.
  • Platinum center electrode for long life
  • Fine-wire center electrode for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Heat-Active alloy allows electrodes to reach optimal temperature
  • Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
  • Platinum Center Electrode: The Champion Platinum Power Spark Plug features a platinum center electrode for extended durability and long-lasting performance.
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DENSO – Platinum TT Spark Plug – PT16TT (Part No.4511)

Platinum TT Spark Plug - PT16TT

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$5.99
The Platinum TT Spark Plug with its innovative Twin-Tip design ensures faster flame propagation, promoting more complete combustion for enhanced engine performance and efficiency. Crafted with a durable platinum center electrode tip, this spark plug offers exceptional longevity and consistent performance, making it a reliable choice for your vehicle. Its tapered seat type ensures a secure fit, reducing the risk of gas leakage and optimizing combustion chamber sealing. Designed for precision and durability, this spark plug not only improves ignition efficiency but also contributes to smoother engine operation and potentially better fuel economy. A perfect blend of advanced technology and robust materials, it delivers excellent value for drivers seeking long-lasting performance and reliability.

Product Features:
  • Innovative Twin-Tip design promotes faster flame propagation for more complete combustion, enhancing engine performance and efficiency.
  • Durable platinum center electrode tip ensures exceptional longevity and consistent performance over time.
  • Tapered seat type provides a secure fit, reducing gas leakage and optimizing combustion chamber sealing.
  • Precision-engineered to improve ignition efficiency, contributing to smoother engine operation.
  • Advanced design and robust materials deliver long-lasting performance and reliability for drivers.
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DENSO – Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition (Part No.4503)

Platinum TT Spark Plug with Twin-Tip Design for Enhanced Ignition

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$3.99
Platinum TT Spark Plug with its innovative twin-tip design ensures faster flame propagation for more complete combustion, delivering superior ignition efficiency and performance. Featuring a platinum center electrode tip and a titanium-enhanced ground strap, this spark plug is built for exceptional durability and consistent reliability. The platinum material provides a stable and long-lasting spark, while the flat seat type ensures a secure fit for optimal functionality. Engineered for enhanced ignition, it is an ideal choice for maintaining peak vehicle performance. Whether you’re seeking improved fuel efficiency or dependable ignition, this spark plug offers unmatched value and durability for your vehicle’s needs.

Product Features:
  • Platinum Twin-Tip Design: The Denso Platinum TT Spark Plug features a unique twin-tip design, enhancing ignition efficiency and performance.
  • Titanium-Enhanced Ground Strap: Equipped with a titanium-enhanced ground strap, this spark plug ensures superior durability and longevity.
  • Platinum Center Electrode Tip: The center electrode tip is made of platinum, providing excellent durability and a consistent spark for reliable ignition.
  • Superior Performance: Designed for enhanced ignition, this spark plug offers reliable and efficient performance, making it a top choice for vehicle maintenance.
  • Flat Seat Design: The flat seat type ensures a secure and precise fit, contributing to optimal functionality and reliable performance.
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E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.54)

DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency

from

$8.49
The Premium DiamondFire Automotive Spark Plug is engineered to deliver peak performance and efficiency for your vehicle. Featuring E3’s patented Diamond Fire edge-to-edge ground electrode, it ensures a faster, more complete burn for smoother acceleration and idle. The innovative “diamond-shaped” side wire electrode enhances combustion by quickly igniting the air/fuel mixture, resulting in a larger flame kernel and improved power output – up to 6% on average. This advanced design not only boosts energy but also promotes fuel savings and reduces engine carbon deposits for a cleaner, more efficient operation. Constructed with durable nickel center and ground electrode tips, it offers long-lasting reliability. The tapered seat type ensures a secure fit, and the pre-gapped design eliminates the need for adjustments, making installation hassle-free. Upgrade to this spark plug for enhanced performance, better fuel economy, and a cleaner engine.

Product Features:
  • E3’s Diamond Fire edge to edge ground electrode provides maximum performance with increased efficiency and a faster more complete burn
  • Smoother Acceleration & Idle – The faster flame initiated by the spark plug results in a more complete burn of the ingested fuel charge. More pressure is created against the piston more fuel is put to work
  • Energy – Power output improved up to 6% on average in the typical operating ranges. Results will vary.
  • Efficiency – The “diamond shaped” side wire electrode projects the combustion spark in a way that more quickly ignites the air/fuel mixture, thereby creating a significantly faster and larger flame kernel. The result is that more fuel is put to work durin
  • E3’s patented Diamond Fire Technology provides a cleaner burning combustion, which translates into fuel savings and reduced engine carbon deposits
  • The Spark Plugs are pre-gapped at the factory and cannot be adjusted.
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ACDelco – RAPIDFIRE Spark Plug: Enhanced Durability & Reliable Performance (Part No.6)

RAPIDFIRE Spark Plug: Enhanced Durability & Reliable Performance

from

$7.99
ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:
  • Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
  • Pure copper core provides great heat transfer and helps maximize plug durability
  • Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
  • Ribless insulator helps optimize plug to boot seal
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
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DENSO – U-Groove Spark Plug: OE Performance, K16PR-U11 (Part No.3130)

U-Groove Spark Plug: OE Performance, K16PR-U11

from

$3.49
The U-Groove Spark Plug features a patented U-groove ground electrode design that enhances ignitability, allowing for leaner fuel mixtures and improved engine efficiency. Crafted with precision machine-rolled threads, it minimizes the risk of seizing or cross-threading in delicate aluminum heads, ensuring a secure and hassle-free installation. Built with a nickel center electrode tip and a flat seat type, this spark plug is engineered for durability and optimal performance. It boasts a lifespan twice as long as most conventional plugs, delivering over 30,000 miles of reliable operation. Pre-fired to guarantee consistent performance, it is compatible with a wide range of vehicles, including classic and collector cars. This spark plug is a dependable choice for maintaining OE performance while maximizing engine efficiency and longevity.

Product Features:
  • Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
  • Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
  • Wide range of part numbers for thousands of applications, including classic and collector cars
  • Lasts twice as long as most conventional plugs
  • 100 percent pre-fired to assure reliable operation
  • U-Groove Conventional
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Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5245)

Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition

from

$10.99
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.

Product Features:
  • 0.6 mm finewire design improves ignitability
  • Patented V-trimmed platinum sidewire technology resists wear
  • OE equivalent design is engineered for every engine
  • Designed for better overall durability with virtually no gap erosion
  • Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance.
  • Designed and Engineered in the USA: Reflects over 100 years of Autolite’s engineering experience.
  • Tapered Seat Type: Ensures a secure fit and optimal performance.
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Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP3924)

Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition

from

$10.99
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.

Product Features:
  • 0.6 mm finewire design improves ignitability
  • Patented V-trimmed platinum sidewire technology resists wear
  • OE equivalent design is engineered for every engine
  • Designed for better overall durability with virtually no gap erosion
  • Double Iridium-enhanced alloy center electrode ensures superior wear resistance for extended performance life.
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ACDelco – Copper Core Spark Plug: Reliable Heat Transfer & Durability (Part No.41-629)

Copper Core Spark Plug: Reliable Heat Transfer & Durability

from

$6.29
ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

Product Features:
  • Black Onyx coating helps reduce corrosion
  • Copper core provides great heat transfer and helps maximize plug durability
  • Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
  • Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
  • Available for use in Marine applications
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
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Autolite Iridium – Iridium Ultra Fine Wire Spark Plug: Laser-Welded for Precision (Part No.AI5245)

Iridium Ultra Fine Wire Spark Plug: Laser-Welded for Precision

from

$10.99
Autolite Iridium Ultra Laser Fine wire Spark Plugs are one of our brand’s most technologically advanced products. These spark plugs provide superior durability, more focused ignition with better overall ignitability for optimum performance. Autolite Spark Plugs are the best alternative to OE spark plugs, offering OE fit form and function supporting all foreign and domestic makes and models at a value price. Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs in the world.

Product Features:
  • Autolite Iridium Ultra is an engineered OE replacement iridium spark plug.
  • A laser-welded 0.5mm pure iridium finewire center electrode provides optimal fuel efficiency, acceleration and focused ignitability.
  • Nickel-plated shell to resist corrosion.
  • High-alumina ceramic insulator for increased strength.
  • Laser welded 0.5mm Iridium finewire center electrode.
  • Proprietary platinum sidewire technology.
  • Superior Durability: Autolite Iridium Ultra Laser Fine wire Spark Plugs are designed for long-lasting performance, ensuring your vehicle runs smoothly over extended periods.
  • OE Fit and Function: Autolite Spark Plugs offer an original equipment (OE) fit, form, and function, making them a reliable alternative for all foreign and domestic makes and models.
  • Technologically Advanced: As one of Autolite’s most advanced products, these spark plugs incorporate cutting-edge technology for superior performance.
  • Value Pricing: Despite their advanced features and high quality, Autolite Iridium Ultra Laser Fine wire Spark Plugs are available at a value price, making them an economical choice for vehicle maintenance.
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ACDelco – Double Platinum Spark Plug: Enhanced Durability & Long Life (Part No.41-805)

Double Platinum Spark Plug: Enhanced Durability & Long Life

from

$11.99
ACDelco Gold (Professional) Double Platinum Spark Plug are a high quality alternative to Original Equipment (OE) parts. With a copper core and double platinum pads on the center electrode, these plugs are designed to deliver long-lasting performance. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Product Features:
  • One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
  • Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
  • Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
  • Double Platinum Pads: Features double platinum pads on the center electrode for enhanced durability and long-lasting performance.
  • Backed by General Motors: These premium spark plugs are supported by the trusted quality of General Motors.
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NGK – Iridium IX Spark Plug (TR4IX): Extreme Ignitability & Durability (Part No.7300)

Iridium IX Spark Plug (TR4IX): Extreme Ignitability & Durability

from

$13.99
NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Product Features:
  • SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
  • IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
  • TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
  • RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
  • Outstanding Acceleration and High Fuel Efficiency: NGK Iridium IX spark plugs are engineered to deliver exceptional acceleration and improved fuel efficiency, making them ideal for performance enthusiasts.
  • Extreme Ignitability and Anti-Fouling: These spark plugs offer extreme ignitability and exceptional resistance to fouling, ensuring reliable performance in various driving conditions.
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Motorcraft – High-Durability Spark Plug: Reduces Misfires & Fuel Consumption (Part No.SP-485-X)

High-Durability Spark Plug: Reduces Misfires & Fuel Consumption

from

$9.29
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for performance and reliability. These spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. They are resistant to oxidation and arc erosion, feature a multi-rib insulator to protect against misfire, and offer service intervals of up to 100,000 miles. Backed by Motorcraft’s Service Parts Warranty, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles and are designed with high-quality materials to provide reliable performance for almost any application. Motorcraft ignition components also help prevent false check engine lights, ensuring your vehicle runs smoothly.

Product Features:
  • Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
  • Backed by Motorcraft’s Service Parts Warranty
  • Exact fit for Ford, Lincoln and Mercury vehicles
  • Resistant to oxidation and arc erosion.
  • Multi-rib insulator protects against misfire.
  • Service intervals of up to 100,000 miles.
  • Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
  • Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
  • Motorcraft ignition components help prevent false check engine lights.
  • Engineered for Ford Vehicles: Original equipment on Ford, Lincoln, and Mercury vehicles, ensuring a perfect fit and optimal performance.
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Champion – Iridium Spark Plug (RC10WYPB4): Maximum Performance & Longevity (Part No.9001)

Iridium Spark Plug (RC10WYPB4): Maximum Performance & Longevity

from

$8.49
The Champion Iridium Spark Plug (RC10WYPB4) is engineered for drivers who demand peak performance and durability. Featuring a fine-wire iridium center electrode and an iridium-platinum ground electrode, this premium spark plug ensures maximum ignitability and a sharper spark focus for enhanced engine efficiency. The V-trimmed ground electrode design promotes precise spark delivery, while the Heat-Active alloy enables the electrodes to quickly reach and maintain optimal operating temperatures under all engine loads. Built with a flat seat type and resistor technology, it provides stable performance and reduces interference. Designed for longevity, the iridium center electrode offers exceptional wear resistance, making it ideal for high-performance applications. Whether you’re looking to boost your vehicle’s power or maintain consistent performance, this spark plug delivers unmatched reliability and value.

Product Features:
  • Champion Iridium – Maximum Performance. Premium Spark Plug
  • Iridium center electrode delivers maximum life
  • Fine-wire center electrode and V-trimmed for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Maintains stable operating temperature under all engine loads
  • Heat-Active alloy allows electrodes to reach optimal temperature quickly
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DENSO – Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PT16EPR10 (Part No.5091)

Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PT16EPR10

from

$7.99
The Double Platinum Spark Plug is engineered to meet the highest OE standards for performance, durability, and emissions, ensuring reliable ignition and long-lasting efficiency. Featuring OE-grade platinum on both the center and ground electrodes, this spark plug delivers superior thermal conductivity and sustained spark performance for over 60,000 miles. Its premium shell construction with machine-rolled threads ensures a secure fit and enhanced durability, while the tapered seat type provides optimal sealing. Designed to reduce secondary required voltage, it increases ignition efficiency, leading to smoother engine performance and fewer maintenance issues. With its double platinum design, this spark plug minimizes wear and tear, offering exceptional value and reducing the likelihood of shop comebacks. Perfect for those seeking a high-quality, long-lasting ignition solution.

Product Features:
  • OE grade platinum on both center and ground electrodes
  • Premium shell construction with machine-rolled threads
  • Superior thermal conductivity
  • Sustained spark performance over 60,000 miles
  • Reduced secondary required voltage, increased ignition efficiency
  • Satisfied customers, reduced shop comebacks
  • Double Platinum
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NGK – G-Power Spark Plug (TR4GP): Enhanced Durability & Fuel Efficiency (Part No.2815)

G-Power Spark Plug (TR4GP): Enhanced Durability & Fuel Efficiency

from

$6.99
NGK G-Power Platinum spark plugs are the best single platinum spark plugs at an economical price. G-Power plugs feature a fine wire platinum center electrode and a trapezoidal cut ground electrode that offers increased durability, improved fuel efficiency, lower emissions, faster starts and quicker acceleration over conventional nickel spark plugs. An excellent upgrade for vehicles which used nickel alloy spark plugs originally. For better performance consider upgrading to a NGK Iridium IX plug. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

Product Features:
  • SINGLE PLATINUM TIP: Fine wire 0.6 millimeter platinum tip center electrode ensures improved durability and a consistently stable spark
  • PLATINUM ALLOY: G-Power platinum provides exceptional value with increased performance and longer service intervals than factory nickel plugs
  • TRAPEZOIDAL CUT GROUND ELECTRODE: Reduces quenching design produces improved ignitability and performance
  • SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
  • COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
  • RECOMMENDED USAGE: Lower cost alternative to double precious metal spark plugs or as an upgrade to OE nickel alloy spark plugs
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Champion – Double Platinum Power Spark Plug (RS14PMP4): Enhanced Durability & Performance (Part No.7015)

Double Platinum Power Spark Plug (RS14PMP4): Enhanced Durability & Performance

from

$4.99
Champion Double Platinum Power spark plugs are engineered for drivers seeking enhanced durability and performance. Featuring a fine-wire platinum center electrode and a platinum pad ground electrode, these spark plugs deliver exceptional wear resistance and long-lasting reliability. The V-trimmed ground electrode ensures a sharper spark focus, while the Heat-Active alloy optimizes electrode temperature under all engine loads, promoting consistent performance. Designed as a standard replacement, these spark plugs maintain stable operating temperatures, ensuring smooth ignition and efficient combustion. With a tapered seat type and integrated resistor, they provide a precise fit and reduced electromagnetic interference. Ideal for those demanding more powerful performance, these spark plugs combine advanced materials and innovative design to maximize engine efficiency and longevity.

Product Features:
  • Double Platinum Power – Premium Spark Plug. More Powerful Performance.
  • Platinum center and ground electrode for greater wear resistance
  • Maintains stable operating temperature under all engine loads
  • Fine-wire center electrode for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Heat-Active alloy allows electrodes to reach optimal temperature
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Champion – Platinum Power Spark Plug (RS14PMC4): Powerful Performance & Durability (Part No.3015)

Platinum Power Spark Plug (RS14PMC4): Powerful Performance & Durability

from

$4.49
Champion Platinum Power spark plugs are engineered to deliver exceptional performance and durability, making them a reliable choice for your vehicle. Featuring a platinum center electrode, these spark plugs ensure long-lasting operation while maintaining optimal gap specifications over time. The fine-wire center electrode enhances ignitability, while the V-trimmed ground electrode sharpens spark focus for efficient combustion. Constructed with the exclusive Heat-Active alloy, these plugs quickly reach and maintain the ideal operating temperature, ensuring consistent performance under various driving conditions. The platinum-tipped center wire resists wear, providing extended service life and reducing the need for frequent replacements. Designed as a standard replacement with a tapered seat type, these spark plugs are compatible with a wide range of vehicles. With a nickel ground electrode tip and integrated resistor, they offer a perfect balance of quality, performance, and value for your engine’s ignition system.

Product Features:
  • Platinum Power- Premium Spark Plug. Powerful Performance.
  • Platinum center electrode for long life
  • Fine-wire center electrode for greater ignitability
  • V-trimmed ground electrode promotes sharper spark focus
  • Heat-Active alloy allows electrodes to reach optimal temperature
  • Platinum tipped center wire resists wear and helps to maintain proper gap spec over life of the plug
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DENSO – U-Groove Spark Plug: OE Performance, T16EPR-U (Part No.5022)

U-Groove Spark Plug: OE Performance, T16EPR-U

from

$3.79
The U-Groove Spark Plug features a patented U-groove ground electrode design that enhances ignitability, allowing your engine to fire leaner mixtures for improved efficiency and performance. Crafted with precision machine-rolled threads, it minimizes the risk of seizing or cross-threading in delicate aluminum heads, ensuring a hassle-free installation. Built with a nickel center electrode tip and a tapered seat type, this spark plug is engineered for durability and optimal conductivity. It boasts a lifespan twice as long as most conventional plugs, making it a reliable and cost-effective choice for your vehicle. With a wide range of part numbers available, it fits thousands of applications, including classic and collector cars. Each plug is 100 percent pre-fired to guarantee dependable operation, delivering OE-level performance and long-lasting quality.

Product Features:
  • Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
  • Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
  • Wide range of part numbers for thousands of applications, including classic and collector cars
  • Lasts twice as long as most conventional plugs
  • 100 percent pre-fired to assure reliable operation
  • U-Groove Conventional
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Best-Selling 1990 Oldsmobile Cutlass Supreme Spark Plug Non-Fouler

Upgrade your Cutlass Supreme with our best-selling Spark Plug Non-Fouler with a 3.5 Starts rating across 3 reviews.

Dorman – Help – Spark Plug Non-Foulers – 14mm Gasket Seat Long Reach (Part No.42004)

Spark Plug Non-Foulers - 14mm Gasket Seat Long Reach

from

$9.99
This spark plug non fouler is designed for easy installation on specified vehicles to protect spark plugs from fouling and damage. It is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this spark plug non fouler is designed for easy installation to protect spark plugs from fouling and damage on specified vehicles
  • Ideal solution – this non-fouler preserves spark plug life and is a reliable replacement for an original non-fouler that has failed due to corrosion
  • Durable construction – made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Top-Rated Spark Plug Brands For Your 1990 Oldsmobile Cutlass Supreme

When it comes to finding the perfect Spark Plug for your 1990 Oldsmobile Cutlass Supreme, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 8 trusted brands. We carry the most popular Spark Plug brands including ACDelco, DENSO, and Autolite, and more, all known for their exceptional customer ratings (average brand rating of 4.7 stars) and competitive prices, as low as $4.99. Purchasing a Spark Plug from us here at Advance Auto Parts is a smart move for both you and your 1990 Oldsmobile Cutlass Supreme, providing peace of mind with parts that meet or exceed OEM standards.

Popular ACDelco 1990 Oldsmobile Cutlass Supreme Spark Plugs

If you’re looking for a top-quality Spark Plug for your 1990 Oldsmobile Cutlass Supreme, Advance Auto Parts has exactly what you need with our selection of ACDelco Spark Plugs. We have 3 ACDelco Spark Plugs in stock for this fitment, all known for their durability and precision fit. With prices starting at just $6.29 and an average cost of $8.42, you’ll find the perfect Spark Plug for your needs and budget. ACDelco Spark Plugs for the 1990 Oldsmobile Cutlass Supreme come highly rated, with over 86 customer reviews and an impressive average rating of 4.7 stars. Choosing a ACDelco Spark Plug from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
RAPIDFIRE Spark Plug: Enhanced Durability & Performance
from $7.99
(11)
RAPIDFIRE Spark Plug: Enhanced Durability & Performance
“These are great and a good price as well!”
Double Platinum Spark Plug: Long-Lasting Performance & Durability
from $10.99
(6)
Double Platinum Spark Plug: Long-Lasting Performance & Durability
“No issues with plugs, replaced iridiums with 115K miles, replacement solved low speed miss.”

Top-Quality DENSO 1990 Oldsmobile Cutlass Supreme Spark Plugs

For those in search of a high-quality Spark Plug for their 1990 Oldsmobile Cutlass Supreme, Advance Auto Parts offers a great selection of DENSO Spark Plugs. With 3 DENSO Spark Plugs in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Spark Plugs start at just $9.99, with an average price of $14.32, giving you a range of options to suit your budget. Backed by over 119 customer ratings and an average rating of 4.6 stars, DENSO Spark Plugs provide both reliability and excellent performance. Choosing a DENSO Spark Plug from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK16TT
from $12.99
(75)
Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK16TT
“Running smoother than worn out plugs, as good as new.”
Iridium Long-Life Spark Plug: OE Performance, SK16PR-L11
from $19.99
(4)
Iridium Long-Life Spark Plug: OE Performance, SK16PR-L11
“delivered on time. shipping free”

FAQs for 1990 Oldsmobile Cutlass Supreme Spark Plugs

What are the best-selling Spark Plugs for 1990 Oldsmobile Cutlass Supremes?

Out of 41 Spark Plugs that fit 1990 Oldsmobile Cutlass Supremes, the following parts are the top sellers:

What’s the price range for 1990 Oldsmobile Cutlass Supreme Spark Plugs?

The prices of Spark Plugs for the 1990 Oldsmobile Cutlass Supreme range from $2.49 up to $19.99 for the most premium parts.

What is the average price of a Spark Plug for a 1990 Oldsmobile Cutlass Supreme?

The average price for Spark Plugs for the 1990 Oldsmobile Cutlass Supreme is $7.94. Keep in mind the variety of part types within our Spark Plug category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Spark Plugs for other Oldsmobile Cutlass Supreme model years?

Yes, we carry Spark Plugs for 29 model years of Oldsmobile Cutlass Supremes between 1967 and 1997. The following model years are the most popular for Spark Plug purchases: 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1989, and 1988.

What are the cheapest Spark Plugs for my 1990 Oldsmobile Cutlass Supreme?

Does Advance Auto Parts sell Spark Plugs for any other 1990 Oldsmobile models?

Yes. We stock Spark Plugs for 6 other popular 1990 Oldsmobile models. Some of the most popular are 1990 98 Spark Plugs, 1990 Delta 88 Spark Plugs, 1990 Toronado Spark Plugs, 1990 Silhouette Spark Plugs, and 1990 Custom Cruiser Spark Plugs.

What are the top-rated Spark Plugs that fit the 1990 Oldsmobile Cutlass Supreme?

Based on 3,762 reviews by customers, our 1990 Oldsmobile Cutlass Supreme Spark Plugs have an average customer rating of 5 stars. These are the highest-rated categories of Spark Plugs for the 1990 Oldsmobile Cutlass Supreme and their top-rated products:

What types of Spark Plugs do you sell for my 1990 Oldsmobile Cutlass Supreme?

As of 11/2/25, these are some of the most in-demand types of Spark Plugs for a 1990 Oldsmobile Cutlass Supreme:

Can I get help with 1990 Oldsmobile Cutlass Supreme Spark Plug orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Oldsmobile Spark Plugs and more.

What is your return policy for Oldsmobile Cutlass Supreme Spark Plugs?

Advance Auto Parts keeps returns simple. For new Oldsmobile Cutlass Supreme Spark Plugs and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.