NGK 5599 - ITR4A15 Laser Iridium Spark Plug

Sold as singles Thread Size 14mm Thread Pitch 1.25mm Seat Type Tapered Reach 17.5mm (0.689") Gap .059" (1.5mm) Heat Range 4 Center Electrode Material Iridium Center Electrode Projection Projected Ground Electrode Material Platinum NGK standard plugs are constructed for longer life and optimum performance. - 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