Traditional Spark Plug, 14mm Thread Size, 12.7mm (1/2") Reach, 13/16" (20.6mm)
Hex Size, Gasket Seat, Resistor, Removable Terminal Nut, JIS Height, Extended
Projected Tip, .028" (0.7mm) Gap, Heat Range 4

NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance.

Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
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