Autolite Racing Spark Plug AR-133 (Sold Individualy)

The Autolite AR133 is the silent assassin of the spark plug world—non-resistor, cold heat range, and short reach for max performance under brutal conditions. This plug’s made for high-compression screamers that live in the danger zone and don’t come with a warranty.

Copper core means reliable fire, every lap, every launch. If you're building it nasty, this plug's already in. Add to cart and spark something serious.

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.433 in. Reach, Each