GMC W5500 Forward High Beam Indicator Bulb Size
The GMC W5500 Forward high beam indicator utilizes bulb sizes 158 and 168 and 1445 for the specific lighting component. Data for the specified vehicle covers the range from 1988 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 |
|---|---|
| 1995-1996 | 158 (Tiltmaster) |
| 1989-1994 | 168 (Tiltmaster) |
| 1988 | 168 |
| 1445 (Medium Duty, With 2 Round Headlights) |
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, 4.9W. | 168 |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 1445 |