GMC W7500 Forward Brake Bulb Size
The GMC W7500 Forward brake light uses 1157 and 2057 bulb sizes for the lighting components on the vehicle. Available data for the specified lighting covers the range from 1984 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
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1993-1996 | 1157 (Tiltmaster) | P21/5W | Check Price |
| 1991-1992 | 1157 | P21/5W | Check Price |
| 1990 | 1157 (Medium Duty) | P21/5W | Check Price |
| 2057 (Tiltmaster) | 2057 | Check Price | |
| 1989 | 1157 | P21/5W | Check Price |
| 1988 | 1157 (Medium Duty) | P21/5W | Check Price |
| 2057 (Tiltmaster) | 2057 | Check Price | |
| 1987 | 1157 | P21/5W | Check Price |
| 2057 | 2057 | Check Price | |
| 1986 | 1157 | P21/5W | Check Price |
| 2057 (With 2 Round Headlamps) | 2057 | Check Price | |
| 1985 | 1157 | P21/5W | Check Price |
| 2057 | 2057 | Check Price | |
| 1984 | 2057 | 2057 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W. | 2057 | Check Price |