BMW 745i Turn Signal Bulb Size
The BMW 745i front inner turn signal uses 3457NA or 3357NA bulb size, while front turn signals require 3357NA or 12961, and rear turn signals use PY21W, 12496, or P21W bulb sizes. The replacement chart covers 2002 through 2005 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
| Years | Bulb Size |
|---|---|
| 2005 | 3457NA |
| 2004 | 3357NA |
| 2003 | 3457NA |
| 2002 | 3357NA |
Front Turn Signal
| Years | Bulb Size |
|---|---|
| 2002-2005 | 3357NA (Front) |
| 12961 (Side) |
Rear Turn Signal
| Years | Bulb Size |
|---|---|
| 2005 | PY21W |
| 2003-2004 | 12496 |
| 2002 | P21W |
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). Single-filament wedge bulb (T25), natural amber glass. 12V, 27W. | 3357NA |
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12961 |
| ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W. | PY21W |
| Philips/Osram part number. Halogen bulb, specialty application. 12V. | 12496 |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |