GMC 1500 Series Instrument Panel Bulb Size
The GMC 1500 Series instrument panel uses bulb size 53 and bulb size 57 for the interior lighting components. Data for the specific bulbs covers the period from 1960 through 1965.
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 |
|---|---|
| 1964-1965 | 57 |
| 1962-1963 | 53 |
| 1961 | 57 |
| 1960 | 53 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W. | 57 |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 53 |