Mercury Mountaineer Turn Signal Bulb Size
Mercury Mountaineer front and rear turn signal bulbs utilize 3157NA size for front applications, with rear positions accommodating 3157NA, 3057, or 2356 bulb sizes. The replacement chart covers 1997 through 2010 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 | US Type | EU Type | Shop |
|---|---|---|---|
| 1997-2010 | 3157NA | PY27/7W | 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 |
|---|---|---|---|
| 2006-2010 | 3157NA | PY27/7W | Check Price |
| 2002-2005 | 3057 | 3057 | Check Price |
| 2001 | 2356 | 2356 | Check Price |
| 1997-2000 | 2456 | 2456 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3157NA | 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. 12V. | 2356 | Check Price |
| ANSI standard (US & Canada). Festoon bulb, specialty application. 12V. | 2456 | Check Price |