GMC R1500 Suburban Engine Compartment Light Bulb Size
The GMC R1500 Suburban engine compartment light uses a 1156 bulb size for illumination in the engine bay area. The replacement chart covers 1987 through 1991 production years 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.
Bulb Size by Year Range
| Years | Bulb Size |
|---|---|
| 1987-1991 | 1156 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 |