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Autolite Racing Spark Plug AR-3911 (Sold Individually)
This is the plug for when everything’s on kill mode. The Autolite AR3911 is a non-resistor, short-reach, cold-range spark plug built for high-compression, high-horsepower, and high-stress chaos. Copper core for crisp ignition, every time you smash the loud pedal.
It’s what you run when “mild” ain’t in the vocabulary. Add to cart and keep that fire lit from green to checkers.
Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. Reach, Each
Store Policies
We’re splitting the difference! In-stock items will be shipped right away, and we’ll send the rest as soon as they hit the shelves. If any backordered items are expected to take longer than 5 days, we’ll reach out to let you know what’s up and keep you in the loop.