Possible spark plugs:

  • NGK: BR10ECS
  • NGK: BR10EYA
  • Denso: W31ESR-U
  • Denso Iridium: IW31

Details about your spark plug:

  • Type: MTCYC.
  • Type: MARINE
  • Type: AUTOM.
  • Thread size: n/a (0 inches)
  • Hex size: N/A inches (0 mm)
  • Reach: N/A inches (0 mm)
  • Seat type: N/A
  • Projected tip: N/A

Convert another spark plug:

spark plug converter: