GMC Brigadier Turn Signal Bulb Size
The GMC Brigadier front and rear turn signal bulbs utilize 1073 and 1157 bulb sizes for replacement applications. The replacement chart covers vehicle production spanning 1984 to 1988 with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Turn Signal
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 |
|---|---|---|---|
| 1988 | 1073 (Tiltmaster) | 1073 | Check Price |
| 1985-1987 | 1157 (Tiltmaster) | P21/5W | Check Price |
| 1984 | 1073 (Tiltmaster) | 1073 | Check Price |
Rear Turn Signal
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 |
|---|---|---|---|
| 1988 | 1157 (Tiltmaster) | P21/5W | Check Price |
| 1984-1987 | 1073 (Tiltmaster) | 1073 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 1073 | Check Price |
| 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 |