Ford F-350 Automatic Transmission Indicator Bulb Size
The Ford F-350 automatic transmission indicator utilizes bulb sizes 194, 37, and 1445 depending on the specific version of the component. Data for the light sources covers the range from 1973 to 1997.
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 |
|---|---|
| 1992-1997 | 194 |
| 1989-1991 | 37 |
| 1973-1979 | 1445 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1W. | 37 |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 1445 |