Description

One (1) NGK TR55IX 7164 NGK IX Iridium Series 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 Item Specifics:: Shell Thread Diameter 14mm Thread Pitch 1.25mm Seat Type Tapered Reach 18mm (.709") Hex Size 5/8" (16mm) Terminal Type Solid Overall Height ISO Gap .059" (1.5mm) Center Electrode Material Iridium Type Fine Wire Size 0.6mm Projection Projected Ground Electrode Material Nickel Type Standard Shape Taper Cut Quantity 1 Specifications Resistor Yes Resistor Value 5k Ohm Heat Range 5 Torque Specs Cast Iron: 10.8-18 lb. ft. Aluminum: 7.2-14.5 lb. ft. Part Information Brand NGK/NTK Warranty 1 Year Longevity 50k Miles