NGK Laser Iridium spark plugs provide superior ignitability and long service life. Fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode ensures slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.
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.
 
Thread Diameter 14mm
Thread Pitch 1.25mm
Seat Type Gasket
Reach 26.5mm (1.04")
Hex Size 5/8" (16mm)
Terminal Type Solid
Gap .035" (0.9mm)
Center Electrode Material Iridium
Type Fine Wire
Size 0.6mm
Projection Projected Ground Electrode
Material Platinum
Type Fine Wire
Quantity 1
 
Specifications
Resistor Yes
Resistor Value 5k
Ohm Heat Range 7
 
Torque Specs
Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.