Mercury Cyclone Spark Plugs

Your One-Stop Shop For Trusted Mercury Cyclone Spark Plugs

If you’re in search of Mercury Cyclone Spark Plugs aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 54 Spark Plugs from top brands with prices ranging from $2.49 to $64.99.

Beyond great prices, we stock trusted brands manufacturing all types of Spark Plugs for your Mercury Cyclone.

And don’t forget to read customer reviews across all Spark Plugs categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Spark Plugs have to cost top dollar, and we prove it. Browse our top Mercury Cyclone Spark Plugs below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

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Essential Mercury Cyclone Spark Plugs

Dorman – Help – Spark Plug Non-Foulers – 18mm Tapered Seat (Part No.42002)

Spark Plug Non-Foulers - 18mm Tapered Seat

from

$10.99
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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Autolite – Platinum Spark Plug: Enhanced Durability & Improved Performance (Part No.AP46)

Platinum Spark Plug: Enhanced Durability & Improved Performance

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$5.49
Autolite Platinum spark plugs are crafted for exceptional 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 acceleration while boosting fuel efficiency. The platinum firing tip resists gap erosion, extending the service life, while the high alumina ceramic insulator provides superior thermal conductivity and insulation for added strength. A multi-rib insulator prevents flash-over, and the nickel-plated shell offers corrosion resistance for long-lasting reliability. Designed with a tapered seat type, these spark plugs enhance performance and durability, ensuring a consistent and powerful spark. With a long projection center electrode and a performance-grade design, Autolite Platinum spark plugs deliver reliable ignition and optimal engine efficiency, making them a valuable upgrade for maintaining peak engine 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.
  • Tapered Seat Type: Enhances performance and durability for a longer-lasting spark plug.
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E3 – DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency (Part No.E3.42)

DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency

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$8.49
DiamondFire Automotive Spark Plug delivers exceptional performance and efficiency with its innovative Diamond Fire edge-to-edge ground electrode design. Engineered for smoother acceleration and idle, it ensures a faster, more complete burn of the fuel charge, maximizing pressure against the piston and putting more fuel to work. With power output improved by up to 6% on average, this spark plug enhances energy efficiency while reducing engine carbon deposits thanks to its patented Diamond Fire Technology. The unique diamond-shaped side wire electrode ignites the air/fuel mixture quickly, creating a larger flame kernel for optimal combustion. Crafted with durable nickel center and ground electrode tips, it offers long-lasting reliability. Pre-gapped at the factory for hassle-free installation, this tapered seat spark plug is a smart choice for drivers seeking improved fuel savings, cleaner engine performance, and enhanced power output.

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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Motorcraft – High-Performance Spark Plug: Enhances Fuel Efficiency (Part No.SP-501-X)

High-Performance Spark Plug: Enhances Fuel Efficiency

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$7.99
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.

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.
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ACDelco – RAPIDFIRE Spark Plug (Part No.1)

RAPIDFIRE Spark Plug

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 sea
  • 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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Champion – Copper Plus Spark Plug (RV15YC4): Dependable Performance & Durability (Part No.18)

Copper Plus Spark Plug (RV15YC4): Dependable Performance & Durability

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$3.19
The Copper Plus spark plug is engineered for dependable performance and durability, making it a reliable choice for maintaining optimal engine function. Featuring a copper core center electrode, it delivers enhanced conductivity and precise heat control, ensuring good overall wear and extending the plug’s lifespan. Its nickel center electrode tip and tapered seat type further enhance reliability and engine performance. Built to ISO and SAE Standards, this spark plug guarantees proven performance and superior corrosion resistance, making it a durable option for long-term use. Designed as a standard replacement, it offers consistent functionality and compatibility with a wide range of vehicles. Whether you’re seeking improved heat management or reliable ignition, this spark plug is crafted to meet your needs with exceptional value.

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 plug’s life.
  • Reliable Nickel Center Electrode Tip: Featuring a nickel center electrode tip and a tapered seat type, this spark plug ensures enhanced reliability and optimal engine performance.
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Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP25)

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

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$11.49
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 ensures superior wear resistance for extended performance longevity.
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Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (Part No.45)

Copper Resistor Spark Plug: Quick Starts & Enhanced Durability

from

$4.79
Autolite Copper spark plugs are expertly crafted to ensure quick starts and reliable performance for your vehicle or application. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, while the high nickel alloy center and ground electrodes deliver extended life and durability. The high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, providing superior strength under demanding conditions. Designed with a corrosion-resistant nickel-plated shell, these spark plugs offer long-lasting durability. The tapered seat type and long projection center electrode design further optimize functionality, while the resistor ensures consistent performance. Engineered for good fuel economy, these spark plugs help you save on fuel costs without compromising on power or efficiency. With a standard-grade type and nickel tip materials, Autolite Copper spark plugs are a dependable choice for maintaining peak 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.
  • Good Fuel Economy: Engineered to optimize fuel efficiency, helping you save on fuel costs.
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Autolite Iridium – Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP24)

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

from

$10.49
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 ensures superior wear resistance for extended performance life.
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Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (Part No.46)

Copper Resistor Spark Plug: Quick Starts & Enhanced Durability

from

$4.79
Autolite Copper spark plugs are designed to deliver reliable performance, ensuring quick starts and the power your vehicle demands. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, while the high nickel alloy center and ground electrodes provide extended life. The high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, offering increased strength and durability. With a nickel-plated shell, these spark plugs resist corrosion for long-lasting performance. Engineered for optimal fuel economy, they help improve mileage while delivering smooth and responsive acceleration. Compliant with Original Equipment Service (OES) design Standards, they ensure dependable operation and a secure fit with their tapered seat type. The long projection center electrode and nickel tip materials further enhance their efficiency and reliability, making them a valuable addition to your vehicle’s ignition system.

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.
  • Good Fuel Economy: Designed to optimize fuel consumption, these spark plugs help you achieve better mileage.
  • Smooth Acceleration: Experience smoother and more responsive acceleration with Autolite Copper Core spark plugs.
  • OES Design Compliance: These spark plugs meet or exceed Original Equipment Service (OES) design requirements, ensuring reliable performance.
  • Tapered Seat Type: Featuring a tapered seat type, these spark plugs provide a secure fit and optimal performance.
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Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP25)

Double Platinum Spark Plug: Enhanced Durability & Performance

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$7.49
The Double Platinum Spark Plug is engineered for exceptional durability and performance, making it a top choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring a longer service life compared to copper and standard platinum plugs. Its yttrium-enhanced ground electrode delivers superior heat transfer, allowing it to withstand high temperatures and pressures for extended durability. The high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. With a mid-projection center electrode and tapered seat type, this performance-grade spark plug is designed to deliver consistent ignition and efficiency. Both the center and ground electrode tips are crafted from platinum, ensuring robust functionality and reliability. Ideal for drivers seeking enhanced engine performance and longevity, this spark plug is built to meet the demands of modern engines.

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 tapered seat type to ensure consistent ignition and improved engine efficiency.
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Autolite – Double Platinum Spark Plug: Enhanced Durability & Performance (Part No.APP24)

Double Platinum Spark Plug: Enhanced Durability & Performance

from

$7.49
The Double Platinum Spark Plug is engineered for exceptional durability and performance, making it a top choice for distributor-less ignition system (DIS) engines. Featuring a platinum-to-platinum design, it minimizes gap erosion and reduces misfires, ensuring a longer service life compared to copper and standard platinum plugs. Its yttrium-enhanced ground electrode delivers superior heat transfer, allowing it to withstand high temperatures and pressures for extended durability. The high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for reliable operation. With a mid-projection center electrode and tapered seat type, this performance-grade spark plug is built to deliver consistent ignition and efficiency. Both the center and ground electrode tips are crafted from platinum, ensuring superior conductivity and longevity. Designed to meet the demands of modern engines, this spark plug offers unmatched value and reliability for drivers seeking enhanced engine 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.
  • Designed with a mid-projection center electrode and tapered seat type to ensure consistent ignition and improved engine efficiency.
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Motorcraft – Platinum Spark Plug: Fine Wire Design for Enhanced Ignition (Part No.SP-549-X)

Platinum Spark Plug: Fine Wire Design for Enhanced Ignition

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$5.29
The Platinum Spark Plug with a fine wire center electrode design is engineered for superior ignition performance and efficiency. Featuring a platinum center electrode tip, it ensures excellent conductivity and long-lasting durability, making it a reliable choice for consistent engine starts and smooth operation. The nickel ground electrode tip complements the design, providing robust performance under various driving conditions. Its tapered seat type ensures a secure fit, reducing the risk of gas leakage and enhancing overall engine efficiency. This spark plug is an ideal upgrade for those seeking improved fuel combustion, reduced emissions, and extended service life, delivering exceptional value and reliability for your vehicle.

Product Features:
  • Fine wire center electrode design enhances ignition performance and fuel combustion efficiency.
  • Platinum center electrode tip ensures excellent conductivity and long-lasting durability.
  • Nickel ground electrode tip provides robust performance under various driving conditions.
  • Tapered seat type ensures a secure fit, reducing gas leakage and improving engine efficiency.
  • Engineered for consistent engine starts, smooth operation, and extended service life.
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DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITF16TT (Part No.4715)

Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, ITF16TT

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$15.49
The Iridium TT Spark Plug combines the durability of an OE-style plug with the power and torque of high-performance engineering. Featuring the world’s smallest 0.4mm Iridium Center Electrode, 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 offers unmatched durability and withstands extreme temperatures exceeding 4000 Deg F. The advanced 360-degree laser welding process ensures a robust bond and structural integrity, while the Twin-Tip Technology, derived from OE Super Ignition Plug design, blends a fine wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode for ultimate endurance. This spark plug delivers over 100,000 miles of reliable performance, enhanced fuel economy, and reduced emissions, making it an eco-friendly and cost-effective choice. With premium materials and a tapered seat type, the Iridium TT Spark Plug is engineered for optimal performance and long-lasting reliability.

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 Tapered Seat Type for optimal performance and durability.
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Motorcraft – Double Platinum Spark Plug: Enhances Durability & Reduces Misfires (Part No.SP-459)

Double Platinum Spark Plug: Enhances Durability & Reduces Misfires

from

$5.49
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. With a platinum center and ground electrode tip, they are resistant to oxidation and arc erosion, ensuring long-lasting performance. The multi-rib insulator protects against misfires, and they are designed to fit Ford, Lincoln, and Mercury vehicles exactly. Backed by Motorcraft’s Service Parts Warranty, these spark plugs offer service intervals of up to 100,000 miles and help prevent false check engine lights. Made with high-quality materials, Motorcraft Spark Plugs deliver reliable performance for almost any application, making them the same trusted components that were in your vehicle when it was manufactured.

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.
  • Enhanced Durability: Engineered with a platinum center and ground electrode tip, these spark plugs are resistant to oxidation and arc erosion, ensuring long-lasting performance.
  • Fuel Efficiency and Emissions: Designed to reduce fuel consumption and optimize emissions, contributing to a more efficient and environmentally friendly driving experience.
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NGK – G-Power Platinum Spark Plug (UR4GP): Enhanced Durability & Efficiency (Part No.2869)

G-Power Platinum Spark Plug (UR4GP): Enhanced Durability & Efficiency

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$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
  • Trapezoidal Cut Ground Electrode: Improves fuel efficiency, lowers emissions, and provides faster starts and quicker acceleration.
  • Economical Upgrade: Ideal for vehicles originally equipped with nickel alloy spark plugs, offering a cost-effective performance boost.
  • Enhanced Durability: Designed to last longer than traditional nickel spark plugs, reducing the need for frequent replacements.
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ACDelco – Double Platinum Spark Plug (Part No.41-905)

Double Platinum Spark Plug

from

$11.49
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
  • 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.
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Autolite – Platinum Spark Plug: Enhanced Durability & Improved Performance (Part No.AP45)

Platinum Spark Plug: Enhanced Durability & Improved Performance

from

$5.49
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 acceleration while improving fuel efficiency. The platinum firing tip prevents gap erosion, extending the service life, while the high alumina ceramic insulator offers excellent thermal conductivity and insulation for added strength. A multi-rib insulator design prevents flash-over, and the nickel-plated shell resists corrosion for long-lasting reliability. With a tapered seat type, these spark plugs deliver enhanced performance and durability. Designed with a long projection center electrode and a nickel ground electrode tip, they are built for performance-grade applications. Whether you’re seeking improved engine efficiency or extended durability, these spark plugs are a dependable choice for maintaining optimal engine functionality.

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.
  • Tapered Seat Type: Enhances overall performance and durability.
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NGK – G-Power Platinum Spark Plug (UR5GP): Enhanced Durability & Efficiency (Part No.3547)

G-Power Platinum Spark Plug (UR5GP): Enhanced Durability & Efficiency

from

$8.99
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

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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ACDelco – RAPIDFIRE Spark Plug (Part No.2)

RAPIDFIRE Spark Plug

from

$6.99
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 sea
  • 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 reliable performance for everyday use.
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Autolite – Copper Resistor Spark Plug: Quick Starts & Enhanced Durability (Part No.25)

Copper Resistor Spark Plug: Quick Starts & Enhanced Durability

from

$4.79
Autolite Copper spark plugs are designed to provide reliable performance and durability, making them an excellent choice for maintaining your vehicle’s efficiency. 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 engineered for extended life, while the nickel-plated shell offers superior corrosion resistance for long-lasting durability. The high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, contributing to increased strength and reliability. With a mid-projection standard center electrode design and a tapered seat type, these spark plugs are built for optimal compatibility and performance. Engineered to improve fuel economy, they help reduce fuel costs without compromising on power. Additionally, their advanced design ensures smoother acceleration, delivering a more responsive and enjoyable driving experience. Ideal for regular-grade applications, these spark plugs combine value, efficiency, and durability to meet your vehicle’s performance needs.

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.
  • Good Fuel Economy: Engineered to optimize fuel efficiency, these spark plugs help you save on fuel costs while maintaining excellent performance.
  • Smooth Acceleration: Experience smoother acceleration with Autolite’s advanced copper spark plug design, providing a more responsive driving experience.
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Champion – Copper Plus Spark Plug (RF11YC): Dependable Performance & Durability (Part No.22)

Copper Plus Spark Plug (RF11YC): Dependable Performance & Durability

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$3.79
Copper Plus spark plug delivers reliable performance and durability, making it an excellent choice for maintaining your vehicle’s efficiency. Featuring a copper core center electrode, it ensures precise heat range control for extended lifespan and consistent functionality. The nickel-tipped center and ground electrodes enhance conductivity while resisting corrosion, ensuring dependable ignition in various conditions. Designed to meet ISO and SAE Standards, this spark plug guarantees proven performance and compatibility with standard replacement needs. Its tapered seat type and built-in resistor further contribute to optimal operation, making it a practical and value-driven solution for your engine’s ignition system.

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
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NGK – V-Power Nickel Spark Plug (WR5): Reliable Performance & Quick Starts (Part No.2438)

V-Power Nickel Spark Plug (WR5): Reliable Performance & Quick Starts

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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
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Accel – HP Copper Shorty Spark Plug: Enhanced Ignitability & Heat Dissipation (Part No.8198)

HP Copper Shorty Spark Plug: Enhanced Ignitability & Heat Dissipation

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$64.99
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 – Copper Plus Spark Plug (RV17YC): Dependable Performance & Durability (Part No.25)

Copper Plus Spark Plug (RV17YC): Dependable Performance & Durability

from

$3.19
Copper Plus spark plug delivers dependable performance and durability, making it a reliable choice for your vehicle. Featuring a copper core center electrode, it ensures precise heat control and enhanced conductivity, promoting longer life and consistent wear. The nickel-tipped center and ground electrodes provide superior corrosion resistance, ensuring optimal performance even in challenging conditions. Designed to meet ISO and SAE Standards, this spark plug guarantees proven reliability and compatibility with standard replacement needs. Its tapered seat type and built-in resistor further enhance functionality, making it a practical solution for maintaining engine efficiency. Choose this spark plug for a balance of quality, durability, and value.

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
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Spark Plugs Brands You Can Trust For Your Mercury Cyclone

9 trusted brands of Spark Plugs line our shelves, ready to help keep your Mercury Cyclone running smooth. Below are some of the most popular brands and their top Spark Plugs offerings:

FAQs for Mercury Cyclone Spark Plugs

What are the most purchased Spark Plugs for the Mercury Cyclone?

Out of 54 Spark Plugs for the Mercury Cyclone, the most popular in our inventory are:

What are the top-rated Mercury Cyclone Spark Plugs?

Top-rated Spark Plugs for your Mercury Cyclone based on customer reviews/ratings are:
Platinum Spark Plug: Enhanced Durability & Improved Performance
from $5.49
(23)
Platinum Spark Plug: Enhanced Durability & Improved Performance
“Used on a 1965 Mustang. Quality product.”