GMC C7000 High Beam Indicator Bulb Size
The GMC C7000 High Beam Indicator utilizes bulb sizes 158, 194, 1445, and 168 for the specific lighting component. Available information spans the range of 1979 through 1990 for the specified vehicle and lighting application.
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 |
|---|---|
| 1989-1990 | 158 (Tiltmaster) |
| 1988 | 1445 |
| 158 (Tiltmaster) | |
| 1987 | 1445 |
| 194 (Medium Duty) | |
| 158 (Tiltmaster) | |
| 1986 | 1445 |
| 158 (Tiltmaster) | |
| 1985 | 1445 |
| 194 (Medium Duty) | |
| 158 (Tiltmaster) | |
| 1984 | 1445 |
| 168 (Medium Duty) | |
| 158 (Tiltmaster) | |
| 1983 | 1445 |
| 168 (Medium Duty) | |
| 1981-1982 | 1445 |
| 1979-1980 | 1445 |
| 168 (Heavy Duty) |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3W. | 158 |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 1445 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |