GMC C6000 Tail Light Bulb Size
The GMC C6000 tail light utilizes 1157 and 2057 bulb sizes for the rear lighting components. Data for the specified vehicle covers the range from 1979 through 1990.
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 |
|---|---|
| 1984-1990 | 1157 (Medium Duty) |
| 1983 | 2057 (Medium Duty) |
| 1981-1982 | 1157 (Medium Duty) |
| 1979-1980 | 1157 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W. | 2057 |