NGK Spark Plug DCPR9E. *standard plug is an '8'. This plug is for road riding of Town and high high heat situations - especially when the jetting is 'spot-on'!

Traditional Spark Plug, 12mm Thread Size, 19mm (3/4") Reach, 5/8" (16mm) Hex Size, Gasket Seat, Resistor, SOLID Terminal NUT, Projected Tip, .035" (0.9mm) Gap, Heat Range 8.

NGK traditional solid terminal plugs are constructed for longer life and optimum performance. Corrugated ribs prevent flashover. NGK uses only the purest alumina silicate in its ceramic insulator which give all NGK plugs greater strength and better heat transfer. Copper cored and triple sealed to further aid in heat removal and prevent interior leakage. Solid terminal top cannot be removed. Some application require a solid top due to its greater durability than an aluminum terminal nut and will not unscrew under high vibration conditions.