Ford
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Champion Spark Plugs for Ford Inboard MotorsChampion 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 |