BMW 525i Turn Signal Bulb Size
BMW 525i front inner turn signal bulbs utilize 12496 or PY21W bulb sizes, while front turn signals accommodate 3357NA, 12496, or 3457NA sizes, and rear turn signals use PY21W, 12496, or P21W sizes. The replacement chart covers 1989 through 2007 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 Inner 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 |
|---|---|---|---|
| 2007 | 12496 | 12496 | Check Price |
| 2006 | 7507 | PY21W | Check Price |
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 |
|---|---|---|---|
| 2007 | 3357NA (Front, To 03/2007) | 3357NA | Check Price |
| 2006 | 3357NA (Front) | 3357NA | Check Price |
| 2004-2005 | 12496 | 12496 | Check Price |
| 2001-2003 | 3457NA | PY27/7W | Check Price |
| 1989-1995 | 1157 | 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 |
|---|---|---|---|
| 2007 | 7507 | PY21W | Check Price |
| 2006 | 12496 | 12496 | Check Price |
| 2005 | 1156 | P21W | Check Price |
| 2001-2004 | 12496 | 12496 | Check Price |
| 1989-1995 | 1156 | P21W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| Philips/Osram part number. Halogen bulb, specialty application. 12V. | 12496 | Check Price |
| ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W. | PY21W | Check Price |
| ANSI standard (US & Canada). Single-filament wedge bulb (T25), natural amber glass. 12V, 27W. | 3357NA | Check Price |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 3457NA | 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 |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 | Check Price |