NGK Racing Spark Plugs, R5671A-10, Sold Individually

5820 NGK Racing Spark Plugs, R5671A-10

NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Special insulator nose configurations improve throttle response. Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer. Copper core aids in heat removal. Triple seals prevent leakage.