Pontiac Montana Turn Signal Bulb Size
The Pontiac Montana front turn signal uses 3457NA, 4157NA, or 3357NA bulb sizes, while the rear turn signal requires 3057, 3156, or 2456 bulb sizes. The replacement chart covers 1999 to 2006 model years with corresponding bulb 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 | Bulb Size |
|---|---|
| 2006 | 3457NA |
| 2005 | 4157NA (With 2 Headlamps) |
| 3357NA (With 4 Headlamps) | |
| 1999-2004 | 4157NA |
Rear Turn Signal
| Years | Bulb Size |
|---|---|
| 2006 | 3057 |
| 2005 | 3156 (With 2 Headlamps) |
| 3057 (With 4 Headlamps) | |
| 2004 | 2456 |
| 2003 | 3156 |
| 2002 | 2356 |
| 2001 | 2456 |
| 2000 | 2356 |
| 1999 | 2456 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3457NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 4157NA |
| ANSI standard (US & Canada). Single-filament wedge bulb (T25), natural amber glass. 12V, 27W. | 3357NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 3057 |
| ANSI standard (US & Canada). Single-filament wedge bulb (T25). 12V, 27W. | 3156 |
| ANSI standard (US & Canada). Festoon bulb, specialty application. 12V. | 2456 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V. | 2356 |