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 Shell
Thread Diameter 14mm
Thread Pitch 1.25mm
Seat Type Gasket
Reach 12.7mm (1/2")
Hex Size 13/16" (21mm)
Terminal Type Removable Nut
Overall Height ISO
Gap .039" (1.0mm)
Center Electrode Material Nickel
Type Standard
Size 2.5mm
Projection Non-Projected
Ground Electrode Material Nickel
Type Standard
Specifications
Resistor Yes
Resistor Value 5k Ohm
Heat Range 9
Torque Specs
Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
