Possible spark plugs:

  • NGK: B6S
  • NGK: BR6S
  • Accel: 124
  • AC Delco: M44C
  • AC Delco: R44
  • Autolite: 303
  • Autolite: 363
  • Bosch: WR8EC
  • Bosch: W7EC
  • Champion: RJ6C
  • Denso: W16S-U
  • Denso: W20SR-U
  • Motorcraft: AS4C
  • Napa: X501
  • Napa: X900
  • Prestolite: 14-5X
  • Prestolite: 14-03-01
  • Splitfire: SM030C
  • Valley Forge: 447

Details about your spark plug:

  • Type: MARINE
  • Type: MTCYC.
  • Thread size: 14mm (0.55118 inches)
  • Hex size: 0,81 inches (20.574 mm)
  • Reach: 0,38 inches (9.652 mm)
  • Seat type: GASKET
  • Projected tip: NO

Convert another spark plug:

spark plug converter: