GMC C7000 Side Marker Bulb Size
GMC C7000 front and rear side marker bulbs utilize 194, 1157, and 1895 bulb sizes depending on location and model variation. The replacement chart covers 1979 through 1990 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Side Marker
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1988-1990 | 194 | W5W | Check Price |
| 1987 | 194 | W5W | Check Price |
| 1157 (Medium Duty) | P21/5W | Check Price | |
| 1986 | 194 | W5W | Check Price |
| 1985 | 194 | W5W | Check Price |
| 1157 (Medium Duty) | P21/5W | Check Price | |
| 1984 | 194 | W5W | Check Price |
| 1983 | 1157 (Medium Duty) | P21/5W | Check Price |
| 194 (Medium Duty, With 2 Rectangular Headlights) | W5W | Check Price | |
| 1982 | 194 | W5W | Check Price |
| 1979-1981 | 1157 (Medium Duty) | P21/5W | Check Price |
| 194 (Medium Duty, With 2 Rectangular Headlights) | W5W | Check Price |
Rear Side Marker
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 |
|---|---|---|---|
| 1988-1990 | 194 (Medium Duty) | W5W | Check Price |
| 1987 | 1157 (Medium Duty) | P21/5W | Check Price |
| 1986 | 194 (Medium Duty) | W5W | Check Price |
| 1985 | 1157 (Medium Duty) | P21/5W | Check Price |
| 1981-1984 | 194 (Medium Duty) | W5W | Check Price |
| 1979-1980 | 1895 (Heavy Duty) | 1895 | Check Price |
| 194 (Medium Duty) | W5W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W. | 194 | 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). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | Check Price |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W. | 1895 | Check Price |