Autolite Racing Hi-Performance Spark Plug

Part # AUTLAR3931

The ultimate racing plug designed for performance and used by professional car drivers
Replacement racing spark plug used by many professional car drivers
Specifically designed with colder heat ranges than the factory plug to handle added power
Contains an Yttrium-enhanced alloy to enable up to 8% reduction in sidewire temperature for improved durability and less pre-ignition
Features cut back ground electrode for improved ignitability of flame kernel
Autolite spark plugs are the best alternative to OE spark plugs, offering OE form, fit and function for all makes and models, both foreign and domestic, at a value price
Autolite provides the automotive aftermarket and original equipment manufacturers with the highest quality ignition products and is the leading supplier of spark plugs

Suggested for you