GMC K3500 Courtesy Bulb Size
The GMC K3500 courtesy light uses unique bulb sizes 211-2, 194, 168, 1003, and 1004. Available data covers the range from 1979 through 2000 for the specified vehicle lighting components.
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 |
|---|---|
| 1998-2000 | 211-2 |
| 1997 | 194 |
| 1996 | 168 |
| 1994-1995 | 194 |
| 1993 | 1003 |
| 1992 | 168 |
| 1988-1991 | 1003 |
| 1986 | 194 |
| 1985 | 168 |
| 1981-1984 | 1004 |
| 1980 | 194 |
| 1979 | 1004 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W. | 211-2 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1003 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W. | 1004 |