NGK R5671A-8 Crosses to AR3934

Crosses to AR3934 and built for serious horsepower. The NGK R5671A-8 is your go-to for high-compression, high-heat, no-resistor race builds. It’s short reach, cold heat range, and zero fluff—just raw, reliable spark when you bury the pedal and pray for grip.

Perfect for drag cars, dirt cars, and anyone allergic to misfires. Add to cart before your ignition system throws a tantrum.

Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Non-Resistor, Each