Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The NGK Racing spark plug box of four is built for extreme racing use, engineered to withstand grueling conditions while delivering reliable ignitability and durability. A specially configured center electrode improves ignition under stress while a pure alumina silicate insulator aids heat transfer. Trivalent metal plating prevents corrosion and seizing; corrugated ribs, a copper core and triple seals support consistent performance across varied heat ranges.
NGK Racing Spark Plug Box of 4 (R5671A-7)
