TR55IX NGK SPARK PLUG

Features Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage; Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today's high-performance engines; Trivalent metal plating has superior anti-corrosion and anti-seizing properties; Specifications Hex Size: 0.62"; Thread Size: 14mm; Seat Type: Gasket;.