NGK LASER IRIDIUM SPARK PLUG 4347 KR8BI 4347 {"features":"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;","description":" 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.","descSource":"p"}