GMC C15 Instrument Panel Bulb Size
GMC C15 instrument panel bulb sizes include 168, 1816, and 1445 specifications for the dashboard lighting components. The replacement chart covers vehicle production spanning 1967 to 1978.
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 | 168 |
| 1976-1977 | 1816 |
| 1974-1975 | 168 |
| 1970-1972 | 168 |
| 1969 | 1445 |
| 1967-1968 | 57 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |
| ANSI standard (US & Canada). Miniature wedge bulb (T3.25). 12V, 4W. | 1816 |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 1445 |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W. | 57 |