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NGK Racing Spark Plug Box of 4 (R7420-10)
$204.12
Running E85? This is the go to plug for the Rotary Engine Enthusiast.
Description:
NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Fine wire iridium tipped center electrode and platinum tipped ground electrode improve ignitability, increase durability and enhance anti fouling capabilities. 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.
Product Specifications:
- Shell
- Thread Diameter - 14mm
- Thread Pitch - 1.25mm
- Seat Type - Gasket
- Reach - 21mm (.827")
- Hex Size - 13/16" (21mm)
- Terminal Type - Solid
- Gap - .028" (0.7mm)
Center Electrode
- Material - Iridium
- Type - Fine Wire
- Size - 0.6mm
- Projection - Non-Projected
Ground Electrode
- Material - Platinum
- TypeSlant
- Quantity1
Specifications
- Resistor - Yes
- Resistor Value - 5k Ohm
- Heat Range - 10
- Torque Specs - Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.