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
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.