Autolite AR103-4PK High Performance Racing Resistor Spark Plug, Pack of 4

AR103 Autolite Spark Plugs Spark Plug Since its inception, the Autolite ® brand has provided the automotive aftermarket and Original Equipment manufacturers the highest quality ignition products. We have been in operation for over 100 years and have produced more than 11 Billion spark plugs and glow plugs. Our plugs are specifically designed for each application to meet or exceed OE quality and performance. Autolite makes plugs for Japanese, European and Korean cars as well as plugs for Lawn and Garden and Power Sports. As a leading supplier of spark plugs, ignition wire sets and Coil-on-Plug boots, the Autolite brand has the right ignition products for your vehicle, regardless of make or model, import or domestic. Cut Back Ground Electrode For Improved Ignitability Anti-Corrosive Nickel Plating Large Ground Electrode For Better Heat Transfer Used By Many Professional Car Drivers Limited 90 Day Warranty Reach : 0.708 Inch Resistor : Yes Electrode Type : OEM Electrode Core Material : Copper Insulator Type : Projected Thread Size : 14 Millimeter Seat Type : Tapered Wrench Diameter : 5/8 Inch Hex

Replacement racing spark plug used by many professional car drivers Specifically designed with colder heat ranges than the factory plug to enable performance modifications and handle intense conditions Contains an Yttrium-enhanced alloy to enable up to 8% reduction in side wire temperature for improved durability and less pre-ignition Features cut back ground electrode for improved ignitability of flame kernel Coated in an anti-corrosive nickel plating to prevent rusting