1981 Checker Marathon Spark Plugs
Select Your Submodel
-
Denso®Iridium TT™ Spark PlugChecker Marathon 1981, 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...$7.32 - NGK®Iridium IX™ Spark PlugChecker Marathon 1981, 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...$8.01
- Denso®Iridium Power™ Spark PlugChecker Marathon 1981, 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...$7.19
- Champion®Copper Plus Spark PlugChecker Marathon 1981, 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$1.86
- NGK®G-Power™ Platinum Spark PlugChecker Marathon 1981, 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...$3.73
- NGK®V-Power™ Spark PlugChecker Marathon 1981, 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...$1.88
- Motorcraft®Spark PlugChecker Marathon 1981, 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$4.56
- ACDelco®GM Original Equipment™ Conventional Nickel Spark PlugChecker Marathon 1981, GM Original Equipment™ Conventional Nickel Spark Plug by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$2.79
- ACDelco®GM Original Equipment™ Platinum Spark PlugChecker Marathon 1981, GM Original Equipment™ Platinum Spark Plug by ACDelco®. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Engineered to stringent OE...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$8.02
- ACDelco®Gold™ Rapidfire Platinum Spark PlugChecker Marathon 1981, Gold™ Rapidfire Platinum Spark Plug by ACDelco®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$5.09
- Denso®Original U-Groove Nickel Spark PlugChecker Marathon 1981, 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...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$2.09
- Denso®Platinum TT™ Spark PlugChecker Marathon 1981, 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...$3.68
- ACDelco®Gold™ Double Platinum Spark PlugChecker Marathon 5.0L 1981, Gold™ Double Platinum Spark Plug by ACDelco®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$8.02
- Champion®Platinum Power™ Spark PlugChecker Marathon 5.7L 1981, Platinum Power™ 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 provide enhanced ignition and longer...$2.73
- Autolite®XP™ Iridium Spark PlugsChecker Marathon 1981, XP™ Iridium Spark Plugs by Autolite®. With Resistor. Want to upgrade the ignition system of your vehicle to get ultimate combustion and maximum horsepower? Step up to Autolite. Featuring the ground-breaking...$5.54
- DIY Solutions®Spark Plug SetChecker Marathon 4.4L / 5.0L 1981, Spark Plug Set by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out for. When...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$41.77
- SKP®Spark PlugChecker Marathon 1981, 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$4.57
- Motorcraft®Copper Spark PlugChecker Marathon 1981, 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$1.64 - $1.94
- Champion®Double Platinum Power Spark PlugChecker Marathon 5.7L 1981, Double Platinum Power Spark Plug by Champion®. With platinum fine wire welded onto the nickel alloy center electrode and a platinum pad welded to the ground electrode, these products provide long-lasting...$4.95
- Autolite®Double Platinum Spark PlugsChecker Marathon 1981, Double Platinum Spark Plugs by Autolite®. With Resistor. Want to upgrade the ignition system of your vehicle to get ultimate combustion and maximum horsepower? Step up to Autolite. Featuring the ground-breaking...$4.26
- Brisk®Premium Racing LGS Spark PlugChecker Marathon 1981, Premium Racing LGS Spark Plug by Brisk®. With Resistor. Unlock the performance of your engine and improve the operation of your ignition system with this quality product. Precision engineered in compliance with...$12.60
- Nitrode®Performance Copper Spark PlugChecker Marathon 1981, Performance Copper Spark Plug by Nitrode®. Hotter Plug, higher heat range. The Nitrode™ spark plugs are positioned to be the world's "greenest" most environmentally friendly spark plugs on the planet. Reducing...$5.77
- Nitrode®Yttrium Spark PlugChecker Marathon 1981, Yttrium Spark Plug by Nitrode®. The Nitrode™ spark plugs are positioned to be the world's "greenest" most environmentally friendly spark plugs on the planet. Reducing fuel consumption and emissions while...$10.19
- Pulstar®PlasmaCore™ Inconel Electrode Pulse Spark PlugChecker Marathon 1981, PlasmaCore™ Inconel Electrode Pulse Spark Plug by Pulstar®. With Resistor. PlasmaCore™ Series Inconel Electrode Pulse Plug provides great fuel efficiency as well as better performance. Moreover this part will...$14.94
Shop By Service Type
1981 Checker Marathon Models
Related Searches