Ford F-250 Roof Marker Bulb Size
The Ford F-250 roof marker utilizes 168 and 97 bulb sizes for the exterior lighting components. Available data for the specified lighting covers the period from 1973 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 |
|---|---|
| 1978-1979 | 168 |
| 1973-1977 | 97 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W. | 97 |