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