GMC C7000 Parking Light Bulb Size
The GMC C7000 parking light utilizes unique bulb sizes 1157, 67, and 2057 for various lighting applications on the vehicle. Available data covers the range of years 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 |
|---|---|
| 1985-1990 | 1157 (Medium Duty) |
| 67 (Tiltmaster) | |
| 1984 | 2057 (Medium Duty) |
| 67 (Tiltmaster) | |
| 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). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W. | 67 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W. | 2057 |