Description NGK Racing Spark Plugs 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 special electrode materials—precious metals like platinum, iridium, and ruthenium—for greater durability and low voltage requirements. Fine-wire center and ground electrodes provide better sparking and enhanced ignitability. And, the unique arrangement of insulator noses improves throttle response! 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! Manufacturer’s Model Number: R5724-10 Manufacturer’s Part Number: NGK-7993 UPC: 087295179932 Spark Plug Thread Size: 14mm Spark Plug Reach (in.): 0.708 in. Spark Plug Reach (mm): 17.98mm Manufacturer Heat Range: 10 Shorty Spark Plug: No Resistor: No Electrode Tip Material: Nickel alloy Electrode Core Material: Copper Center Electrode Type: Projected Spark Plug Seat Style: Tapered Wrench Diameter: 5/8 in. Ground Strap Quantity: One
