NGK Double Fine Electrode Iridium Spark Plug 8211 DILKAR7M8

NGK single iridium plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today\’s high-tech, high performance engines. 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 Shell Thread Diameter12mm Thread Pitch1.25mm Seat TypeGasket Reach26.5mm (1.04\”) Hex Size9/16\” (14mm) Terminal TypeSolid Gap.031\” (0.8mm) Center Electrode MaterialIridium TypeFine Wire Size1.0mm ProjectionNon-Projected Ground Electrode MaterialPlatinum TypeFine Wire Quantity1 Specifications ResistorYes Resistor Value5k Ohm Heat Range7 Torque SpecsCast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft. Part Information BrandNGK/NTK Warranty60 Days Longevity100k Miles