1990 Mercury Cougar Spark Plugs
More 1990 Mercury Cougar Spark Plugs
Find your specific 1990 Mercury Cougar original or aftermarket Spark Plugs below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.
Essential 1990 Mercury Cougar Spark Plugs
E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.42)
from
$7.49
The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.42 is a 14mm, 0.460 reach plug with a taper seat. It fits domestic applications in the 80s to early 90s, and is widely stocked in automotive retail stores. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.
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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 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.
Motorcraft – Spark Plug: Enhances Durability & Reduces Fuel Consumption (Part No.SP-425)
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$2.79
Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for optimal performance and reliability. These spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. Resistant to oxidation and arc erosion, they feature a multi-rib insulator to protect against misfires and offer service intervals of up to 100,000 miles. Designed with high-quality materials, Motorcraft Spark Plugs ensure reliable performance for a broad range of applications, including domestic and import cars and trucks of all makes and sizes. Backed by Motorcraft’s Service Parts Warranty, they are an exact fit for Ford, Lincoln, and Mercury vehicles, helping to prevent false check engine lights and providing the same quality as the original components installed during manufacturing.
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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.
- Fuel Efficiency: These spark plugs help reduce fuel consumption, optimizing emissions and contributing to a more efficient engine performance.
ACDelco – Copper Core Spark Plug: Original Equipment Replacement (Part No.CR42TS)
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$3.49
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.
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- GM regularly updates production and service part designs to integrate new materials and technologies
Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP26)
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$4.79
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Platinum spark plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability. Consider upgrading to Autolite Double Platinum or Iridium XP spark plugs for increased performance.
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Product Features:
- High nickel alloy side electrode maintains precise gap
- Full platinum tip assures virtually no gap erosion for long life
- Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
Champion – Copper Plus- Boxed – RF14YC (Part No.21)
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$2.49
Dependable performance. This Champion spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear.
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Product Features:
- Copper Plus – Dependable Performance.
- Copper core center electrode allows for accurate control of heat range for longer life
- Patented TinTac and ULTRASEAL coated shell for maximum corrosion resistance
- Patented SAC-9 semiconductor resistor for maximum EMI & RFI suppression
- Built to ISO and SAE standards for proven performance
Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RS14ZPYC5 (Part No.3407)
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$3.99
Champion® Platinum Power¿ spark plugs deliver powerful performance. Made from exclusive Heat-Active¿ alloy, a fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus.
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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
NGK – OE Series V-Power Nickel Spark Plug: V-Groove Tip Design, UR4 (Part No.6630)
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$4.99
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.
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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 enhances ignitability and overall engine performance.
Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP25)
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$9.99
Our best spark plug! 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.
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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
Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP25)
from
$6.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.
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Product Features:
- Works to optimize engine performance for a longer life and improved fuel economy
- OE design
- Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
- Platinum ball welding process provides a consistent point of contact for enhanced adhesion
Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5364)
from
$9.99
Our best spark plug! 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.
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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: Improves durability and wear resistance for a longer-lasting spark plug.
- Designed and Engineered in the USA: Ensures high-quality manufacturing and engineering standards.
- Tapered Seat Type: Ensures a secure fit and optimal performance in compatible engines.
NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, TR55IX (Part No.7164)
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$11.99
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 c
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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
Champion – Platinum Power Spark Plug: Powerful Perfromance, OE Replacement, RE10PMC5 (Part No.3032)
from
$4.29
Champion® Platinum Power™ spark plugs deliver powerful performance. Made from exclusive Heat-Active™ alloy, a fine-wire center electrode and V-trimmed ground electrode provides sharp spark focus.
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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
ACDelco – Copper Core Spark Plug: Original Equipment Replacement (Part No.CR45TS)
from
$4.99
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.
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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
Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP46)
from
$4.49
With over 100 years of engineering expertise and more than 11 billion plugs sold, Autolite delivers exceptional quality. Designed and engineered in the USA, these spark plugs feature platinum-to-platinum firing, virtually eliminating gap erosion and reducing misfires. The OE design and full-platinum tips on both the center and side electrodes optimize engine performance for a longer life and improved fuel economy. The platinum ball welding process ensures a consistent point of contact for enhanced adhesion, while the tapered seat type further contributes to the plug’s superior durability.
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Product Features:
- High nickel alloy side electrode maintains precise gap
- Full platinum tip assures virtually no gap erosion for long life
- Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
- Improved Fuel Economy: Designed to enhance fuel efficiency compared to standard spark plugs.
- Tapered Seat Type: Enhances performance and durability for a longer-lasting spark plug.
Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP25)
from
$4.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Platinum spark plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability. Consider upgrading to Autolite Double Platinum or Iridium XP spark plugs for increased performance.
Product Features:
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Product Features:
- High nickel alloy side electrode maintains precise gap
- Full platinum tip assures virtually no gap erosion for long life
- Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)
Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP45)
from
$5.99
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.
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Product Features:
- Works to optimize engine performance for a longer life and improved fuel economy
- OE design
- Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
- Platinum ball welding process provides a consistent point of contact for enhanced adhesion
Champion – Copper Plus Spark Plug: Dependable Performance, OE Replacement, RS14YC (Part No.408)
from
$2.79
Dependable Performance, OE Replacement, RS14YC. This Champion® spark plug features a copper core electrode that provides increased conductivity and heat control for good overall wear. The Copper Plus design ensures dependable performance and durability, while the copper core center electrode allows for accurate control of heat range, extending the spark plug’s life. Built to ISO and SAE standards, it offers superior corrosion resistance and proven performance. The nickel center electrode tip and tapered seat type further enhance its reliability, making it an excellent choice for maintaining your engine’s efficiency.
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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
- Nickel Center Electrode Tip and Tapered Seat: Equipped with a nickel center electrode tip and a tapered seat type, this spark plug ensures optimal performance and reliability for your engine.
Champion – Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RV17PMP4 (Part No.7018)
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$3.99
Champion® Double Platinum Power¿ spark plugs deliver more powerful performance. Featuring exclusive Heat-Active¿ alloy, platinum fine wire center electrode and platinum pad ground electrode provide maximum life and sharper spark focus.
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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
NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, LTR5IX-11 (Part No.4344)
from
$10.99
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.
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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 superior acceleration and enhance fuel efficiency, making them ideal for performance enthusiasts.
- Extreme Ignitability and Anti-Fouling: These spark plugs offer exceptional ignitability and anti-fouling properties, ensuring reliable performance and longevity.
Motorcraft – High-Performance Spark Plug: Enhances Fuel Efficiency (Part No.SP-501-X)
from
$7.29
This premium spark plug is engineered to optimize your engine’s performance, ensuring a smoother and more efficient combustion process. Designed with advanced materials and precision manufacturing, it significantly boosts fuel efficiency and reduces emissions. Ideal for both everyday driving and high-performance applications, the Motorcraft High-Performance Spark Plug offers reliable ignition and long-lasting durability, making it a smart choice for maintaining your vehicle’s peak performance.
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Product Features:
- Optimizes Engine Performance: The Motorcraft High-Performance Spark Plug is engineered to enhance your engine’s performance, ensuring a smoother and more efficient combustion process.
- Boosts Fuel Efficiency: Designed with advanced materials and precision manufacturing, this spark plug significantly improves fuel efficiency, helping you save on fuel costs.
- Reduces Emissions: By promoting a more efficient combustion process, the Motorcraft High-Performance Spark Plug helps reduce harmful emissions, contributing to a cleaner environment.
- Reliable Ignition: Ideal for both everyday driving and high-performance applications, this spark plug offers consistent and reliable ignition, ensuring your vehicle starts smoothly every time.
- Long-Lasting Durability: Built to last, the Motorcraft High-Performance Spark Plug provides long-lasting durability, making it a smart investment for maintaining your vehicle’s peak performance.
- Optimizes Engine Performance: The Motorcraft High-Performance Spark Plug is engineered to enhance your engine’s performance, ensuring a smoother and more efficient combustion process.
- Boosts Fuel Efficiency: Designed with advanced materials and precision manufacturing, this spark plug significantly improves fuel efficiency, helping you save on fuel costs.
- Reduces Emissions: By promoting a more efficient combustion process, the Motorcraft High-Performance Spark Plug helps reduce harmful emissions, contributing to a cleaner environment.
- Reliable Ignition: Ideal for both everyday driving and high-performance applications, this spark plug offers consistent and reliable ignition, ensuring your vehicle starts smoothly every time.
- Long-Lasting Durability: Built to last, the Motorcraft High-Performance Spark Plug provides long-lasting durability, making it a smart investment for maintaining your vehicle’s peak performance.
E3 – DiamondFIRE Automotive Spark Plug: More Power, Saves Gas (Part No.E3.44)
from
$6.99
The Spark Plugs are the product of years of fundamental research in the combustion field. The unique patented electrode configuration of these new The spark plugs increases the amount of combustion pressure created during each power stroke of an engine, which results in a marked increase in power output, fuel economy, and reduced emissions in all gasoline engines. E3.44 is a 14mm, 0.708 reach plug with a taper seat. It fits domestic applications from the mid-90s. The automotive plugs have three legs securing the Diamond FIRE electrode to the shell. This allows for excellent heat transfer, and helps to create more turbulence in the cylinder. The patented Diamond FIRE side wire is proven to increase power, reduce fuel consumption and improve hydrocarbon emissions in long-term use.
Product Features:
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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 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.
- Patented Electrode Configuration: The unique patented electrode design of the E3.44 spark plugs increases combustion pressure, resulting in enhanced power output and improved fuel economy.
- Superior Heat Transfer: The three-leg design securing the Diamond FIRE electrode to the shell ensures excellent heat transfer and creates more turbulence in the cylinder for optimal performance.
- Compatibility: The E3.44 spark plug is a 14mm, 0.708 reach plug with a taper seat, fitting domestic applications from the mid-90s.
- Environmental Benefits: By improving combustion efficiency, these spark plugs help reduce emissions, contributing to a cleaner environment.
ACDelco – Premium Double Platinum Tip Copper Core Spark Plug: Long-Lasting Performance & Durability (Part No.41-905)
from
$9.79
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.
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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
- Tapered Seat Design: The tapered seat type ensures a secure fit and optimal sealing in the engine.
- High-Quality Aftermarket Replacement: Manufactured to meet high standards of fit, form, and function, making it a reliable replacement for many vehicles on the road today.
ACDelco – Professional RapidFire Performance Platinum Spark Plug (Part No.F1000612354ACD)
from
$9.41
Designed for today’s most popular autos, ACDelco’s RapidFire Platinum Spark Plugs fit engines using conventional plugs, as well as newer vehicles requiring platinum performance.
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Product Features:
- Ribless insulator that improves the plug-to-boot seal.
- Tapered center wire electrode with a platinum pad reduces the firing diameter and helps improve the firing efficiency by concentrating and directing energy needed to fire the plug with less voltage.
- Solid state suppressor with two-piece glass and brass seal helps reduce radio frequency interference, meters spark plug energy to help provide long electrode life and seals against compression leakage. When compared to conventional spark plugs:
- Reduced sparking voltage.
- Greater corrosion protection.
- Longer life and improved efficiency.
Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP24)
from
$6.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.
Product Features:
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Product Features:
- Works to optimize engine performance for a longer life and improved fuel economy
- OE design
- Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
- Platinum ball welding process provides a consistent point of contact for enhanced adhesion
ACDelco – Professional Platinum Spark Plug (Part No.F1000575810ACD)
from
$14.70
An ideal plug for vehicles requiring platinum performance or older vehicles calling for conventional plugs, ACDelco’s Professional Platinum Spark Plugs can give up to 100,000 miles of service in some applications.
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Product Features:
- Dual platinum tip for improved resistance to spark erosion and corrosive combustion chamber environment.
- A platinum center electrode and a platinum pad lower the ignition voltage demand.
- 3-piece Fired-In-Suppressor Seal (FISS) helps reduce radio frequency interference, meters spark plug energy to help provide long electrode life and seals against compression leakage.
- Designed with a corrosion-resistant shell.
- Spark gap remains virtually unchanged during the life of the plug.
Champion – Iridium Spark Plug: Maximum Performance, OE Replacement, RE10WYPB5 (Part No.9901)
from
$7.49
Champion® Iridium – the ultimate element. This spark plug’s fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance.
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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
DENSO – Iridium Power Spark Plug (Part No.F1000131221ND)
from
$12.52
DENSO Iridium Power spark plugs represent a performance breakthrough. The laser-welded center electrode is only 0.4mm in diameter – the slimmest iridium electrode in the industry. The taper-cut side electrode complements the design, delivering reliable spark energy under the most gruelling pressures and temperatures. DENSO engineers used the power of this miraculous metal to produce an iridium center electrode that is only 0.4mm in diameter. With its superior thermal qualities, this whisker-fine electrode is capable of taking the most extreme heat and punishment. This breakthrough was matched to one of DENSO’s most famous innovations, the patented U-Groove ground electrode. The combination of these two features resulted in the Iridium Power® plug, one of the most advanced and innovative spark plugs on the market.
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Product Features:
- Tapered cut, U-Groove ground electrode
- 0.4mm iridium center electrode
- 360-degree laser welding assembly process
- Required ignition voltage reduced
- Unsurpassed center electrode durability
- Available for many performance and power sports applications, including Corvette, Viper, and Harley-Davidson The Iridium Power plug delivers greater spark energy while demanding significantly less secondary required voltage from the ignition system.
Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.23)
from
$3.49
Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.
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Product Features:
- Copper cored center electrode for higher thermal conductivity
- Specially engineered high nickel alloy center and ground electrode for extended life
- High alumina ceramic for high dielectric strength
- Leak proof, heat fused internal seal for durability
- Multi-rib insulator prevents flash-over
Popular 1990 Mercury Cougar Spark Plugs Categories
1990 Mercury Cougar Spark Plugs
Maybe you’re in the middle of a full rebuild of that 1990 Mercury Cougar. Maybe you just need a couple of Spark Plugs. Either way, Advance Auto Parts has 43 different Spark Plugs in our inventory ranging from $2.49 to $13.57. That means you can find the exact parts or products you need to keep that 1990 Mercury Cougar running smoothly.
Spark Plugs are only as good as their brand. We stock 8 different brands to make sure you have plenty of trusted parts to choose from for your 1990 Mercury Cougar. DENSO, Autolite, and Motorcraft are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!
We know you’ll find the perfect Spark Plugs for your 1990 Mercury Cougar, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 807 reviews in this category, some of the top rated parts include PT16TT Platinum TT Spark Plug with 4.6 stars and Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT16 with 4.6 stars.
So if you’re in the market for aftermarket Spark Plugs to keep your 1990 Mercury Cougar rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!
Spark Plugs Brands To Make Your 1990 Mercury Cougar Last
Simple repair, complete replacement, or a full rebuild. No matter the job, your 1990 Mercury Cougar demands trusted brand parts and products to keep it running. Many trusted brands of Spark Plugs make up Advance Auto Parts’ inventory, and all are ready to help make your Cougar the best it can be. Be sure to browse some of our top Spark Plugs brands and parts.
Popular Champion Spark Plugs
We carry Champion parts in our stock across Spark Plugs categories, plus more. For a 1990 Mercury Cougar, our most popular Champion Spark Plugs include:
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$6.29
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Double Platinum & Power Spark Plug Exceptional Perf OE Replacement RS14ZPYPB
Spark Plugs
Top 1990 Mercury Cougar Spark Plugs from NGK
NGK products are another trusted brand when it comes to Spark Plugs for your 1990 Mercury Cougar. Popular NGK parts include:
FAQs for 1990 Mercury Cougar Spark Plugs
What are the most purchased Spark Plugs for the 1990 Mercury Cougar?
Out of 43 Spark Plugs for the 1990 Mercury Cougar, the most popular in our inventory are:
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$10.99
(46)
Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT16TT
Spark Plugs
What are the top-rated 1990 Mercury Cougar Spark Plugs?
Top-rated Spark Plugs for your 1990 Mercury Cougar based on customer reviews/ratings are:
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$11.79
(22)
Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT16
“These plugs made my cobra mustang run alot better so I tried them in my everyday driver 05 Focus and now it runs alot better also. Just be sure and ga”
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$3.49
(11)
Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration
“I like to use Original parts in my Ford f150 and this plugs do very well.”
