GMC W7500 Forward Instrument Panel Bulb Size
The GMC W7500 Forward instrument panel utilizes unique bulb sizes 158, 161, 168, 194, and 1893 for various lighting needs within the dashboard cluster. Available data for the specified components 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
| Years | Bulb Size |
|---|---|
| 1996 | 158 (Tiltmaster) |
| 1995 | 161 (Tiltmaster) |
| 1994 | 168 (Tiltmaster) |
| 1993 | 158 (Tiltmaster) |
| 1992 | 1893 (Medium Duty) |
| 161 (Tiltmaster) | |
| 1991 | 161 |
| 1990 | 161 (Medium Duty) |
| 1893 (Tiltmaster) | |
| 1989 | 194 (Medium Duty) |
| 1893 (Tiltmaster) | |
| 1988 | 161 |
| 1893 (Medium Duty) | |
| 168 (Tiltmaster) | |
| 1987 | 1893 |
| 168 (Tiltmaster) | |
| 1986 | 1893 |
| 194 (Medium Duty) | |
| 161 (Tiltmaster) | |
| 1985 | 161 |
| 194 (Medium Duty) | |
| 1893 (Tiltmaster) | |
| 168 (With 4 Round Headlamps) | |
| 1984 | 161 |
| 194 (Medium Duty) | |
| 1893 (With 2 Round Headlamps) |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3W. | 158 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W. | 161 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 1893 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |