Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The NGK Racing spark plug is purpose-built for high-demand racing environments and heavy-duty track use. Special center-electrode configurations and robust insulator designs increase durability and ignitability across varied heat ranges, supporting more aggressive engine setups. Ceramic insulation and a copper core help manage temperature, corrugated ribs curb flashover, and trivalent metal plating resists corrosion and seizing for more reliable service under extreme conditions.
NGK Racing Spark Plug Box of 4 (R5673-6)
