NGK single iridium plugs were designed specifically for the performance enthusiast. Fine wire centre 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. NGK single iridium plugs were designed specifically for the performance enthusiast. Fine wire centre 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 Diameter: 10mm Thread Pitch: 1.0mm Seat Type: Gasket Reach: 26.5mm (1.04") Hex Size: 9/16" (14mm) Terminal Type: Threaded Stud Gap .031" (0.8mm) Center Electrode Material: Iridium Type: Fine Wire Size: 0.6mm Projection: Projected Ground Electrode Material: Nickel Type: Standard Quantity 1 Specifications Resistor : Yes Resistor Value: 5k Ohm Heat Range: 8 Torque Specs: Cast Iron: 7.2-10.8 lb. ft. Aluminium: 7.2-8.7 lb. ft. Part Information Brand: NGK/NTK Warranty: 60 Days Longevity: 50k Miles
