Mercury Milan Spark Plugs

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.

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

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 Platinum Spark Plug is expertly crafted to deliver enhanced durability and performance for older engine applications. Featuring a platinum center electrode firing tip, it ensures quicker firing, smoother starts, and improved fuel efficiency while resisting gap erosion for a longer service life. Its high alumina ceramic insulator provides superior thermal conductivity and insulation, boosting strength and reliability under demanding conditions. The multi-rib insulator design prevents flash-over, ensuring consistent performance, while the nickel-plated shell offers exceptional corrosion resistance for extended durability. With a mid-projection standard electrode design and a tapered seat type, this performance-grade spark plug is built to meet the needs of discerning drivers. Whether you’re seeking better acceleration or reliable ignition, this spark plug delivers value and dependability with every drive.

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 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 longevity. Ideal for those seeking enhanced reliability and superior performance, this spark plug is built to meet the demands of modern engines.

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.

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.

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

Iridium Spark Plug (AYFS32YR) offers exceptional durability and reliability, making it the ideal choice for maintaining peak engine performance. Specifically engineered to meet strict Ford standards, these spark plugs are an exact fit for Ford, Lincoln, and Mercury vehicles, ensuring seamless compatibility. Featuring an iridium center electrode tip and platinum ground electrode tip, they resist oxidation and arc erosion, delivering long-lasting performance with service intervals of up to 100,000 miles. The multi-rib insulator design protects against misfires, while the advanced materials optimize emissions and reduce fuel consumption. Backed by Motorcraft’s Service Parts Warranty, these spark plugs provide the same trusted quality as the original equipment installed during manufacturing. Whether you’re driving a domestic or import car or truck, Motorcraft ignition components help prevent false check engine lights, giving you confidence and reliability on the road.

Manufactured to the strictest OE performance, durability and emissions standards.

Racing Resistor Spark Plug is expertly crafted to deliver peak performance on the track, featuring a cut-back ground electrode for optimal ignitability and enhanced heat transfer, ensuring quicker starts and maximum engine efficiency. Its yttrium-enhanced alloy reduces ground wire temperature by up to 8%, making it ideal for colder heat ranges and intense racing conditions. The anti-corrosive nickel plating resists rust better than black oxide, maintaining durability and long-term efficiency. Designed with a high alumina multi-rib ceramic insulator, it offers superior thermal conductivity and insulation, preventing flash-over while increasing strength. The tapered seat type ensures optimal performance across various racing venues, including oval and road racing, while its durable design is tailored for aftermarket cylinder heads. With a mid-projection nickel center electrode and nickel ground electrode tip, this performance-grade spark plug is built to handle the demands of high-speed racing, delivering reliability and value for serious competitors.