Ford W Series Highway Step/Courtesy Light Bulb Size / Type
The recommended Step/Courtesy light bulb type / size for Ford W Series Highway produced 1973 to 1978. To avoid mistakes when purchasing a replacement bulb, it's a good idea to refer to your owner's manual or consult with a qualified mechanic.
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| Model Year | Bulb Size / Type |
|---|---|
| 1978 | 105 |
| 1977 | 105 |
| 1976 | 105 |
| 1975 | 105 |
| 1974 | 105 |
| 1973 | 212-2 |