NGK Iridium Spark Plug 8211 SILZKBR8D8S

NGK Laser Iridium spark plugs provide superior ignitability and long service life. Fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode ensures slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions. 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 Size14mm Bi-Hex Terminal TypeSolid Overall HeightISO Gap.031\” (0.8mm) Center Electrode MaterialIridium TypeFine Wire Size1.0mm ProjectionExtended Projection Ground Electrode MaterialPlatinum TypeSquare ShapeTaper Cut Quantity1 Specifications ResistorYes Resistor Value5k Ohm Heat Range8 FeaturesSpecial Gasket Torque SpecsCast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft. Part Information BrandNGK/NTK Warranty60 Days Longevity100k Miles