Available from 8am - 4pm CST via chat
Available from 8am - 4pm CST via chat
5238 /R5671A9 - NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Special insulator nose configurations improve throttle response. 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: 14 mm
Thread Pitch: 1.25 mm
Seat Type: Gasket
Reach: 19 mm (3/4")
Hex Size: 5/8" (16 mm)
Terminal Type: Solid
Overall Height: ISO
Gap: .031" (0.8 mm)
Center Electrode
Material: Nickel
Type: V-Cut
Size: 2.5 mm
Projection: Non-Projected
Ground Electrode
Type: Standard
Resistor: No
Resistor Value: 1K Ohm
Heat Range: 9
Features: Copper gasket
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
Electrode Material: Nickel
Nominal Gap: 0.8 mm