This product has been discontinued

NGK Racing Plug 3236 - R4118S-8


  • Manufacturer: NGK



NGK 3236 R4118S-8 Racing Plug

NGK Racing Series Plugs are Engineered to Withstand the Harshest Engine Conditions.

NGK's V-Power Plugs Feature a Unique V-Cut in the Center Electrode that Directs the Spark to the Edge of the Electrode, Helping the Spark Develop More Rapidly, Increasing Ignitability and Reducing Quenching.


  • Racing Plug
  • V-Groove Increases Ignitability
  • Hardened Ceramic


  • Thread Size: 14mm
  • Seat Type: Gasket
  • Resistor: No
  • Reach: 19mm (3/4")
  • Hex Size: 13/16" (21mm)
  • Terminal Type: Removable Nut
  • Gap:. 026" (0.65mm)

Center Electrode

  • Material: Gold-Palladium
  • Type: Fine Wire
  • Size: 1.0mm
  • Projection: Non-Projected

Ground Electrode

  • Material: Nickel
  • Type: Standard
  • Shape: Taper Cut
  • Quantity: 1


  • Brand: NGK
  • Heat Range: 8

Note: Image for reference only, actual product may vary.

Manufacturer Part Number: R4118S-8
Manufacturer Stock Number: 3236