1990 Mercury Cougar Spark Plugs
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Denso®Iridium TT™ Spark PlugMercury Cougar 1990, Iridium TT™ Spark Plug by Denso®. Ultimate Endurance and Power. 0.4 mm Iridium and 0.7 mm Platinum Twin-Tip Technology. Make your vehicle faster and more powerful with premium-quality performance fuel system parts...$6.14 - Denso®Iridium Long-Life Spark PlugMercury Cougar 1990, Iridium Long-Life Spark Plug by Denso®. Denso's patented Iridium alloy is more durable than even Platinum, allowing the center electrode to be shrunk to only 0.7 mm in diameter. This produces a dramatic improvement...$6.57
- NGK®Iridium IX™ Spark PlugMercury Cougar 1990, Iridium IX™ Spark Plug by NGK®. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium...$6.43
- NGK®G-Power™ Platinum Spark PlugMercury Cougar 1990, G-Power™ Platinum Spark Plug by NGK®. Platinum spark plugs by NGK are designed to improve fuel efficiency, lower emissions, and provide quicker starts while remaining durable under high heat. With 0.6 mm platinum...$3.63
- Motorcraft®Spark PlugMercury Cougar 4 Engine VIN Character 1990, Spark Plug by Motorcraft®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$3.15
- Denso®Iridium Power™ Spark PlugMercury Cougar 1990, Iridium Power™ Spark Plug by Denso®. Iridium Ultimate Endurance and Power - Performance Upgrade with World's Smallest Center Electrode (0.4 mm Iridium and 0.7 mm Platinum Twin-Tip Technology) & Tapered Tip...$6.77
- Champion®Copper Plus Spark PlugMercury Cougar 1990, Copper Plus Spark Plug by Champion®. Built with nickel alloy center and ground electrodes, these spark plugs provide extra durability for long-lasting service life, while the extrusion of copper into the core of...Copper Plus - Dependable Performance.Copper core center electrode allows for accurate control of heat range for longer life$1.60
- NGK®V-Power™ Spark PlugMercury Cougar 1990, V-Power™ Spark Plug by NGK®. Spark plugs offer higher performance compared to standard plugs. Spark plugs feature a V-groove center electrode and concave ground electrode that lowers ignition voltage requirements...$2.70
- Champion®Iridium Spark PlugMercury Cougar 1990, Iridium Spark Plug by Champion®. As the leaders in precious metal technologies as well as F.I.S.S resistor technology and MLR™ technology. Champion spark plugs provides excellent lifetime and engine performance at...$4.39
- Denso®Original U-Groove Nickel Spark PlugMercury Cougar 1990, Original U-Groove Nickel Spark Plug by Denso®. OE Recommended Resistor Plug with Patented U-Groove Design. If you want to restore the original performance of your vehicle's ignition system, this product is what you...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$2.27
- Denso®Platinum TT™ Spark PlugMercury Cougar 1990, Platinum TT™ Spark Plug by Denso®. Unlock the performance of your engine and improve the operation of your ignition system with this quality product. Precision engineered in compliance with rigorous industry...$3.78
- Autolite®Copper Spark PlugMercury Cougar 1990, Copper Spark Plug by Autolite®. Want to upgrade the ignition system of your vehicle to get ultimate combustion and maximum horsepower? Step up to Autolite. Featuring the ground-breaking design, this product...$1.48
- Motorcraft®Copper Spark PlugMercury Cougar 1990, Copper Spark Plug by Motorcraft®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$1.03 - $3.58
- Denso®Double Platinum Spark PlugMercury Cougar 1990, Double Platinum Spark Plug by Denso®. Denso Double Platinum plug features platinum on both the center and ground electrodes. This precious metal fights corrosion and erosion, ensuring superior spark performance and...$7.04
- SKP®Spark PlugMercury Cougar 1990, Spark Plug by SKP®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to fit and function the...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$4.40 - $4.43
- Motorcraft®Finewire Platinum Spark PlugMercury Cougar 1990, Finewire Platinum Spark Plug by Motorcraft®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE specifications, it is sure to...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$2.64 - $6.02
- Bosch®FineWire™ Iridium Spark PlugMercury Cougar 1990, FineWire™ Iridium Spark Plug by Bosch®. Bosch Iridium Spark Plugs are engineered to deliver both high performance and long life, representing advanced OE spark plug technology. The ultra-fine wire iridium center...$6.35
- Bosch®Super Plus™ Nickel Spark PlugMercury Cougar 1990, Super Plus™ Nickel Spark Plug by Bosch®. Replace your worn out spark plugs with Bosch spark plugs and experience miles of worry-free driving. OE Specialty Spark Plugs ensure safe and reliable performance, same as...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$2.14 - $2.51
- Autolite®Platinum™ Spark PlugMercury Cougar R Engine VIN Character 1990, Platinum™ Spark Plug by Autolite®. Want to upgrade the ignition system of your vehicle to get ultimate combustion and maximum horsepower? Step up to Autolite. Featuring the ground-breaking...$2.18
- Autolite®XP Iridium™ Spark PlugMercury Cougar R Engine VIN Character 1990, XP Iridium™ Spark Plug by Autolite®. Want to upgrade the ignition system of your vehicle to get ultimate combustion and maximum horsepower? Step up to Autolite. Featuring the ground-breaking...$4.70
- Dorman®HELP™ Spark Plug Non-FoulersMercury Cougar 1990, HELP™ Spark Plug Non-Foulers by Dorman®. The Spark Plug Non-Foulers prevent spark plug damage, repairing spark plug fouling in engines running too rich or oil issues to improve engine performance. Dorman offers a...Corrosion-resistant designNon-Foulers help protect spark plugs from damage$7.12
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