Possible spark plugs:

  • NGK: A7
  • NGK: A8
  • AC Delco: C83
  • AC Delco: C81
  • Autolite: 372
  • Bosch: M4AC
  • Champion: D6
  • Denso: M22
  • Denso: M24S
  • Motorcraft: BT3
  • Prestolite: 18S3
  • Prestolite: 18-02-01
  • Stitt: 82
  • Stitt: 847

Details about your spark plug:

  • Type: IND.
  • Thread size: 18mm (0.70866 inches)
  • Hex size: 1 inches (25.4 mm)
  • Reach: 12MM inches (304.8 mm)
  • Seat type: GASKET
  • Projected tip: NO

Convert another spark plug:

spark plug converter: