Ford F-100 Engine Compartment Light Bulb Size
The Ford F-100 engine compartment light requires bulb size 105 or 631 depending on the specific application. Data for the bulb sizes covers the range from 1969 to 1979.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | Bulb Size |
|---|---|
| 1975-1979 | 105 |
| 1969-1974 | 631 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W. | 105 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W. | 631 |