GMC C1500 Suburban Courtesy Bulb Size
The GMC C1500 Suburban uses courtesy light bulbs in sizes 74, 168, 194, 1003, 1004, 161, and 93. Data for the specified lighting components covers the range from 1979 to 1999.
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
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1999 | 74 | W1.2W | Check Price |
| 1998 | 168 | W5W | Check Price |
| 1997 | 194 | W5W | Check Price |
| 1995-1996 | 168 | W5W | Check Price |
| 1993-1994 | 1003 | 1003 | Check Price |
| 1992 | 168 | W5W | Check Price |
| 1984-1986 | 1003 | 1003 | Check Price |
| 1983 | 1004 | 1004 | Check Price |
| 1980 | 161 | 161 | Check Price |
| 1979 | 93 | 93 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W. | 74 | Check Price |
| ECE standard (Europe & worldwide). Miniature wedge bulb (T5) with W2x4.6d base. 12V, 1.2W. | W1.2W | Check Price |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 | Check Price |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W. | W5W | Check Price |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1003 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W. | 1004 | Check Price |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W. | 161 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W. | 93 | Check Price |