Ngk 5238 Ngk Racing Plug

NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Specifications: Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft. Heat Range: 9 Longevity: 30k Miles Resistor: No

Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer Special insulator nose configurations improve throttle response Corrugated ribs prevent flashover Copper core aids in heat removal Triple seals prevent leakage