BMW 328i Side Marker Bulb Size
BMW 328i front and rear side marker bulbs utilize 12961 and P21/5W sizes for the front position, with P21/4W and P21/5W options available for the rear location. The replacement chart covers 1996 through 2000 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 Side Marker
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 |
|---|---|---|---|
| 1999-2000 | 12961 | 12961 | Check Price |
| 1997-1998 | 1157 | P21/5W | Check Price |
| 1996 | 12961 | 12961 | Check Price |
Rear Side Marker
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 |
|---|---|---|---|
| 1999-2000 | P21/4W | P21/4W | Check Price |
| 1997-1998 | 1157 | P21/5W | Check Price |
| 1996 | P21/4W | P21/4W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12961 | 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). Dual-filament signalling bulb with BAZ15d bayonet base. 12V, 21W/4W. | P21/4W | Check Price |