GMC C3500HD Turn Signal Bulb Size
GMC C3500HD front turn signal bulbs use 2357NA or 1157 size, while rear turn signal bulbs use 3057 or 1157 size. The replacement chart covers 1991 to 2002 model 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 Turn Signal
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1993-2002 | 2357NA | P21/5W | Check Price |
| 1992 | 1157 (Medium Duty) | P21/5W | Check Price |
| 1991 | 2357NA (Medium Duty) | P21/5W | Check Price |
Rear Turn Signal
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 |
|---|---|---|---|
| 1998-2002 | 3057 | 3057 | Check Price |
| 1996-1997 | 1157 | P21/5W | Check Price |
| 1995 | 3057 | 3057 | Check Price |
| 1993-1994 | 1157 | P21/5W | Check Price |
| 1991-1992 | 1157 (Medium Duty) | P21/5W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 26.9W/8W. | 2357NA | 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). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 3057 | Check Price |