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

• Thread Diameter:  14mm
• Thread Pitch:  1.25mm
• Seat Type:  Gasket
• Reach:  19mm (3/4")
• Hex Size:  13/16" (21mm)
• Terminal Type:  Removable Nut
• Overall Height:  ISO
• Gap:  .031" (0.8mm)

• Center Electrode
• Material:  Nickel
• Type:  Standard
• Size:  2.5mm
• Projection:  Non-Projected

• Ground Electrode
• Material:  Nickel
• Type:  Standard
• Quantity:  1

• Specifications
• Resistor:  Yes
• Resistor Value:  5k Ohm
• Heat Range;  8
• Torque Specs;  Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.