GMC W7500 Forward Automatic Transmission Indicator Bulb Size
The GMC W7500 Forward automatic transmission indicator utilizes bulb sizes 73, 1445, and 158 for the internal illumination components within the dashboard assembly. Available data for the specified vehicle covers the range from 1984 through 1995.
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 Type | Shop |
|---|---|---|
| 1992-1995 | 73 | Check Price |
| 1988 | 73 | Check Price |
| 1445 (With 2 Round Headlamps) | Check Price | |
| 1985-1987 | 73 | Check Price |
| 1445 (With 2 Round Headlamps) | Check Price | |
| 158 (With 4 Round Headlamps) | Check Price | |
| 1984 | 73 | Check Price |
| 1445 (With 2 Round Headlamps) | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W. | 73 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 1445 | Check Price |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3W. | 158 | Check Price |