GMC K3500 Turn Signal Indicator Bulb Size
The GMC K3500 turn signal indicator utilizes bulb sizes 74, 194, and 168 depending on the specific application. Data for the listed components covers the range from 1985 to 1997.
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 |
|---|---|
| 1993-1997 | 74 |
| 1988-1991 | 194 |
| 1985-1986 | 168 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W. | 74 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |