NGK 6689 CR5EH-9 Nickel Spark Plug

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: 10mm
Thread Pitch: 1.0mm
Seat Type: Gasket
Reach: 19mm (3/4")
Hex Size: 5/8" (16mm)
Terminal Type: Threaded Stud
Overall Height: ISO
Gap: .035" (0.9mm)

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: 5
Features: 12.7mm Threaded Reach
Torque Specs: Cast Iron: 7.2-10.8 lb. ft. Aluminum: 7.2-8.7 lb. ft.

• Mfg Part No: 6689 CR5EH9
• Related Part No: 6689 CR5EH9