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Ford spark plug

Champion Spark Plugs for Ford Inboard Motors

Champion spark plugs are original equipment on many inboard and outboard motors and are excellent replacements for everyday engine maintenance. Please view the application guide below. You may also find the Champion spark plug code helpful.

Year Model / Engine Copper Plus Plug Alternate Plug Gap
  104 CID RN11YC4 0.035
  158 CID RN5C N5C 0.035
  172 CID RH10C 0.035
  201 CID RN5C N5C 0.035
  250 CID RF10C 0.035
  302 CID V8 1975 Newer RV12YC 0.035
  302 CID V8 Thru 1974 RF9YC 0.035
  351 CID V8 1975 Newer RV12YC 0.035
  351 CID V8 Thru 1974 RF9YC 0.035
1989-1975 427 CID V8 RV12YC 0.035
  427 CID V8 Thru 1974 RF9YC 0.035
1989-1975 429 CID V8 RV12YC 0.035
  460 CID V8 RV12YC 0.035
1981-1977 477 CID V8 RZF10 0.035
  477 CID V8 Thru 1976 RF10C 0.035
1976 534 CID V8 w-1 / 2" reach plug RF10C 0.035
1976 534 CID V8 w / 1" reach plug RZF10 0.035
  67 CID V8 RN9YC N9YC 0.035
  98 CID V8 RN9YC N9YC 0.035