Possible spark plugs:

  • NGK: WR4-1
  • Autolite: 5125
  • Champion: 4130
  • Champion: RF14LC
  • Denso: MA9PR-U

Details about your spark plug:

  • Type: AUTOM.
  • Thread size: 18mm (0.70866 inches)
  • Hex size: 0,81 inches (20.574 mm)
  • Reach: 0,46 inches (11.684 mm)
  • Seat type: TAPERED
  • Projected tip: YES

Convert another spark plug:

spark plug converter: