GMC K1500 Suburban Turn Signal Bulb Size
The GMC K1500 Suburban front turn signal bulb uses 2357NA, 3057, or 2057NA sizes, while the rear turn signal bulb uses 3057, 2057, or 1157 sizes depending on configuration. The replacement chart covers 1979 to 1999 model years with corresponding bulb size specifications for each production period.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front 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 |
|---|---|---|---|
| 1993-1999 | 2357NA | P21/5W | Check Price |
| 1992 | 3057 | 3057 | Check Price |
| 1983-1986 | 2057NA | P21/5W | Check Price |
| 1982 | 1034NA | 1034NA | Check Price |
| 1979-1981 | 1157NA | 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 |
|---|---|---|---|
| 1992-1999 | 3057 | 3057 | Check Price |
| 1983-1986 | 2057 | 2057 | Check Price |
| 1979-1982 | 1157 | 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 wedge bulb (T25). 12V, 27W/7W. | 3057 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Brighter variant of 1157. 12V, 26.9W/8W. | 2057NA | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. Variant of 1157. 12V, 21/5W. | 1034NA | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W. | 1157NA | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W. | 2057 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |