GMC R1500 Suburban Parking Brake Indicator Bulb Size
The GMC R1500 Suburban parking brake indicator utilizes 168 and 194 bulb sizes for the lighting components. Available data for the specified vehicle covers the 1987 to 1991 period.
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 |
|---|---|
| 1989-1991 | 194 |
| 1987-1988 | 168 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |