Genuine NGK 3442 R5673-9 Racing Plug

This NGK Racing Series V-Power spark plug is engineered to endure harsh engine conditions, featuring a 14mm thread diameter, 1.25mm thread pitch, and a tapered seat type. It boasts a reach of 11.6mm (.460"), a 5/8" (16mm) hex size, and a solid terminal type with a .020" (0.5mm) gap. Special insulator nose configurations enhance throttle response, while corrugated ribs prevent flashover. The pure alumina silicate ceramic insulator offers superior strength and efficient heat transfer, complemented by a copper core for heat removal and triple seals to prevent leakage. This spark plug is made in Japan.