GMC W6500 Forward Brake Bulb Size
The GMC W6500 Forward brake light utilizes bulb sizes 1157 and 2057 for the lighting system. Data for the specified vehicle covers the range from 1987 through 1996.
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 |
|---|---|
| 1993-1996 | 1157 (Tiltmaster) |
| 1988-1992 | 1157 |
| 1987 | 1157 |
| 2057 (With 2 Round Headlamps) |
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 |