GMC G1000 Series Instrument Panel Bulb Size
The GMC G1000 Series instrument panel uses bulb sizes 57 and 161 for the internal lighting components. Data for the specified vehicle covers the range from 1963 to 1966.
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 |
|---|---|
| 1965-1966 | 57 |
| 1964 | 161 |
| 1963 | 57 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W. | 57 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W. | 161 |