1984 Mercury Capri Spark Plugs

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.

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.

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.

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. Backed by Motorcraft’s Service Parts Warranty, they are an exact fit for Ford, Lincoln, and Mercury vehicles and are resistant to oxidation and arc erosion. The multi-rib insulator protects against misfire, and with service intervals of up to 100,000 miles, these 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, and their ignition components help prevent false check engine lights. Featuring platinum center and ground electrode tips, these spark plugs deliver the performance, reliability, and confidence you expect.

Autolite Copper spark plugs are designed to provide reliable performance and quick starts, ensuring your vehicle meets its power and efficiency demands. Featuring a copper core center electrode, these spark plugs excel in thermal control and resist fouling, making them a dependable choice for consistent ignition. The high nickel alloy center and ground electrodes enhance durability, offering an extended lifespan even under demanding conditions. With a high alumina multi-rib ceramic insulator, these plugs deliver superior thermal conductivity and insulation, boosting strength and reliability. The nickel-plated shell resists corrosion, ensuring long-lasting performance. Designed with a standard center electrode and mid-projection for optimal spark delivery, these spark plugs are built to meet regular-grade requirements. The tapered seat design and integrated resistor further enhance functionality, making them a versatile and durable option for a wide range of applications.

Standard Spark Plug (ASF42CF4) delivers reliable performance and durability, making it the ideal choice for maintaining your vehicle’s original efficiency. Engineered to meet strict Ford standards, these Motorcraft spark plugs are specifically matched to engines for enhanced durability, reduced fuel consumption, and optimized emissions. Designed with high-quality materials, they resist oxidation and arc erosion, ensuring long-lasting reliability with service intervals of up to 100,000 miles. The multi-rib insulator protects against misfires, while the exact fit guarantees seamless compatibility with Ford, Lincoln, and Mercury vehicles. Backed by Motorcraft’s Service Parts Warranty, these spark plugs help prevent false check engine lights, giving you confidence in their performance. Whether for domestic or import cars and trucks, Motorcraft spark plugs are the trusted choice for maintaining the original equipment standards your vehicle was built with.

The Platinum Spark Plug is engineered for exceptional performance and durability, making it ideal for older engine applications. Featuring a platinum center electrode firing tip, it ensures quicker firing, smoother starts, better acceleration, and improved fuel efficiency. Its high alumina ceramic insulator enhances thermal conductivity and insulation, providing increased strength and reliability. The multi-rib insulator design prevents flash-over, while the nickel-plated shell resists corrosion for extended service life. With a mid-projection standard center electrode and a tapered seat type, this performance-grade spark plug delivers consistent results. The platinum tip prevents gap erosion, ensuring a longer lifespan, while the nickel ground electrode adds to its durability. Designed to meet the demands of performance enthusiasts, this spark plug is a reliable choice for maintaining engine efficiency and longevity.

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.

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.

Engineered to meet strict Ford engineering standards, these spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. With a platinum center electrode tip and nickel ground electrode tip, they are resistant to oxidation and arc erosion. The multi-rib insulator protects against misfire, ensuring reliable performance for 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 help prevent false check engine lights. Designed with high-quality materials, Motorcraft spark plugs deliver original equipment performance and reliability for a broad range of applications, including domestic and import cars and trucks of all makes and sizes.

Double Platinum Spark Plug: Enhanced Durability & Performance is engineered for exceptional reliability and efficiency, 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 consistent performance and extended service life. The yttrium-enhanced ground electrode offers superior heat transfer, allowing the spark plug to withstand high temperatures and pressures for greater durability. Its high alumina ceramic insulator optimizes thermal conductivity and dielectric strength, while the multi-rib insulator prevents flash-over for added safety and reliability. With a mid-projection center electrode and tapered seat type, this performance-grade spark plug delivers precision and compatibility. Both the center and ground electrode tips are crafted from platinum, ensuring long-lasting efficiency and superior ignition performance. Designed to outperform copper and standard platinum plugs, this spark plug is a durable and high-value solution for maintaining peak engine performance.

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 and remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around.

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 plugs excel in thermal control and resist fouling, while the high nickel alloy center and ground electrodes provide extended durability. The high alumina multi-rib ceramic insulator enhances thermal conductivity and insulation, offering superior strength. With a corrosion-resistant nickel-plated shell, these spark plugs are built to last. Their tapered seat design ensures a secure fit, while the long projection center electrode optimizes performance. Engineered to meet or exceed Original Equipment Service (OES) Standards, they guarantee dependable operation. Additionally, these spark plugs are designed to improve fuel economy and deliver smoother, more responsive acceleration, making them a valuable upgrade for your vehicle.

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.

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.

Champion Copper Plus spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.

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, better acceleration, and improved fuel efficiency. The platinum firing tip prevents gap erosion, extending the service life, while the high alumina ceramic insulator enhances thermal conductivity and insulation for added strength. Designed with a long projection standard center electrode and a nickel-plated shell, these spark plugs resist corrosion and deliver extended durability. The multi-rib insulator prevents flash-over, ensuring reliable operation, and the tapered seat type offers a secure fit. With a performance-grade design and nickel ground electrode tip material, these spark plugs are built to meet the demands of high-performance engines while maintaining consistent reliability. Whether you’re seeking enhanced efficiency or long-lasting durability, these spark plugs are a dependable choice for your vehicle.

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.

Standard Spark Plug by Motorcraft delivers reliable performance and durability, making it the ideal choice for Ford, Lincoln, and Mercury vehicles. Engineered to meet strict Ford standards, these spark plugs ensure original equipment performance while enhancing durability, reducing misfires, optimizing emissions, and improving fuel efficiency. Designed with high-quality materials, they resist oxidation and arc erosion, while the multi-rib insulator protects against misfires for consistent ignition. With service intervals of up to 100,000 miles, these spark plugs provide long-lasting reliability and confidence on the road. Backed by Motorcraft’s Service Parts Warranty, they are an exact fit for your vehicle and help prevent false check engine lights, ensuring peace of mind. Whether for domestic or import cars and trucks, Motorcraft spark plugs are the trusted solution for maintaining peak engine performance.

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. 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 ensure reliable performance for almost any application. Motorcraft ignition components also help prevent false check engine lights, making them a dependable choice for both domestic and import cars and trucks of all makes and sizes.

Champion Copper Plus spark plugs deliver dependable ignition performance with proven copper-core technology. The copper core electrode provides excellent conductivity and optimized heat control for consistent sparks while the coated shell protects against corrosion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.

The Iridium Power Spark Plug features the world’s smallest Iridium Center Electrode at just 0.4mm, delivering enhanced spark energy for maximum combustion efficiency. Engineered with a patented 360-degree laser welding assembly process, this spark plug ensures unmatched durability and precision. Its U-groove and taper-cut ground electrode design optimizes flame propagation, resulting in improved engine performance. Built to withstand extreme temperatures exceeding 4000 degrees Fahrenheit, it is burnished with nickel plating for exceptional high-temperature endurance and superior 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 advanced Iridium tip material and tapered seat type, this spark plug is the ultimate choice for drivers seeking peak performance and long-lasting reliability.

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.

NGK Laser Platinum spark plugs provide high ignitability and longer service life compared to conventional nickel spark plugs. Laser Platinum plugs are tested to the highest standards to ensure quality and durability. Engineered specifically for OE applications. Laser platinum plugs provide stable idling, superior anti-fouling, improved fuel efficiency and lower emissions. High-grade pure alumina ceramic and 98% pure copper core prevents spark plug from overheating and provides reliable starts. Most Laser Platinum spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.

ACCEL HP 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 HP Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.

Autolite Copper spark plugs are crafted to deliver reliable performance and meet your vehicle’s demands with precision. 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. With a high alumina multi-rib ceramic insulator, these spark plugs provide excellent thermal conductivity and insulation, enhancing strength and reliability. Designed for smooth acceleration, they elevate your driving experience while promoting good fuel economy for greater efficiency. The tapered seat type ensures an optimal fit and performance, while the mid-projection standard center electrode design and nickel tip materials further enhance functionality. Perfect for regular-grade applications, these spark plugs combine durability, efficiency, and smooth operation to keep your vehicle running at its best.

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.

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.

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 prevents gap erosion, extending the service life, while the high alumina ceramic insulator offers superior thermal conductivity and insulation for added strength. A multi-rib insulator design prevents flash-over, ensuring reliable operation, and the nickel-plated shell resists corrosion for long-lasting durability. With a mid-projection standard center electrode and a tapered seat type, these performance-grade spark plugs deliver consistent results. The combination of platinum and nickel materials in the electrode tips further enhances reliability, making them a smart choice for drivers seeking improved engine efficiency and extended part longevity.

Durability of an OE style plug combined with Power & Torque of high performance.

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.

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.

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.

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.

Increased performance with World’s smallest Iridium Center Eletrode (0.4mm).

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.

Durability of an OE style plug combined with Power & Torque of high performance.

Champion Double Platinum Power spark plugs combine a platinum fine-wire center electrode with platinum center and ground electrodes and exclusive Heat-Active alloy, ensuring powerful performance, longer service life and precise spark focus for optimal combustion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.

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.

The Spark Plug: Quick Starts & Enhanced Fuel Economy by Motorcraft is the same high-quality part installed when your engine first rolled off the assembly line, ensuring a perfect fit and reliable performance. Designed and recommended by Ford Motor Company, these spark plugs are engineered to deliver quick starts, improved fuel economy, and smooth acceleration, making them an essential component for maintaining your vehicle’s peak performance. Featuring a tapered seat type, they provide a secure and precise fit, reducing the risk of leaks or misfires. Built to meet the exacting standards of Ford, these spark plugs offer exceptional durability and long-lasting performance, giving you confidence in every drive. Whether you’re replacing worn-out plugs or performing routine maintenance, this part ensures your engine runs efficiently and reliably, offering excellent value for your investment.

“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.”

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.

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 enhance 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 backed by Motorcraft’s Service Parts Warranty. Designed for exact fit in Ford, Lincoln, and Mercury vehicles, these spark plugs also help prevent false check engine lights and offer service intervals of up to 100,000 miles. Crafted with high-quality materials, Motorcraft Spark Plugs provide reliable performance for a broad range of applications, including domestic and import cars and trucks of all makes and sizes.

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.

The Iridium Power Spark Plug (ITF16) is engineered for unmatched performance and efficiency, featuring the world’s smallest 0.4mm Iridium Center Electrode for enhanced spark and maximum combustion. Its patented 360-degree laser welding ensures durability, while the U-groove and taper-cut ground electrode optimize flame propagation for superior ignition. Built to withstand extreme temperatures exceeding 4000 Deg F, this spark plug is burnished with nickel plating for exceptional corrosion resistance and high-temperature endurance. Designed for a wide range of applications, including classic and collector cars, it delivers superior performance with more horsepower, quicker starts, and fewer misfires under heavy loads. The advanced iridium technology enhances fuel efficiency, making it a cost-effective choice, while its low voltage requirement ensures reliable ignition with reduced energy consumption. Whether you’re seeking maximum power or improved fuel economy, this spark plug is built to perform under the most demanding conditions.

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.

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.

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.

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.

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.

Racing Resistor Spark Plug is expertly crafted to deliver peak performance in competitive racing environments. Featuring a cut-back ground electrode, it ensures optimal ignitability and superior heat transfer for quicker starts and maximum engine efficiency. The yttrium-enhanced alloy reduces ground wire temperature by up to 8%, making it ideal for colder heat ranges and performance modifications. Its anti-corrosive nickel plating resists rust better than black oxide, ensuring long-lasting durability. Designed with a high alumina multi-rib ceramic insulator, it offers exceptional thermal conductivity and insulation, preventing flash-over and enhancing strength. The tapered seat type optimizes performance across various racing venues, from oval tracks to road circuits. Built to withstand intense conditions, this spark plug is compatible with all aftermarket cylinder heads used in competitive racing. With a mid-projection center electrode and nickel tip materials, it combines reliability and efficiency, making it a top choice for racers seeking consistent, high-performance ignition.