NGK 7173 Racing Spark Plug R5672A-8 (Non-Resistor)

What’s firing your engine? NGK racing spark plugs are built to withstand the severe mechanical and thermal shock associated with high-revving, high-compression engines. NGK racing plugs feature electrode materials–precious metals like platinum or gold/palladium–for greater durability and low voltage requirements. Fine-wire center and ground electrodes provide better sparking and enhanced ignitability. And, the special arrangement of insulator noses improves throttle response! So, what’s firing your race car to the winner’s circle? Whether you’re a weekend warrior or an expert racer, rocket your way to victory with racing spark plugs from NGK–the people who spark winners!

Resistor: No
Manufacturer Heat Range: 8
Electrode Core Material: Copper
Electrode Tip Material: Nickel alloy
Insulator Type: Projected
Spark Plug Thread Size: 14mm
Spark Plug Reach: 0.750 in.
Spark Plug Seat Style: Gasket
Wrench Diameter: 5/8 in.