NGK 4897 - R7435-10 Racing Spark Plug

Sold as singles. Thread Size 14mm Thread Pitch 1.25mm Seat Type Gasket Reach 19mm (3/4") Gap .028" (0.7mm) Heat Range 10 Center Electrode Material Iridium Center Electrode Projection Projected Ground Electrode Material Nickel NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Fine-wire center Iridium electrode provides for improved spark and combustion ignition Specifically designed to withstand the severe conditions that occur in racing engines Zinc dipped shell prevents corrosion and withstands high heat applications Triple seal designed gasket eliminates combustion gas leakage 14mm Thread, 0.750" Reach Gasket Style Plug for Racing Applications