NGK 5666 CR8EH-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
Quantity: 1

Specifications
Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 8
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: 5666 CR8EH9
• Related Part No: 5666 CR8EH9