GMC 250 Instrument Panel Bulb Size
The GMC 250 Instrument Panel utilizes bulb sizes 257, 57, and 1896 depending on the specific version required for the interior lighting system. Available data for the specified components covers the range from 1951 through 1959.
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 |
|---|---|
| 1958-1959 | 257 |
| 1956-1957 | 57 |
| 1951-1955 | 1896 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Festoon or BA9s base instrument bulb. 12V, 2W. | 257 |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W. | 57 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W. | 1896 |