BMW 550i GT Trunk Bulb Size
The BMW 550i GT trunk utilizes 921 and 12961 bulb sizes for the lighting components located within the rear storage area. Data for the specific lighting requirements covers the period from 2010 through 2015.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | Bulb Size |
|---|---|
| 2015 | 921 |
| 2014 | 12961 |
| 2010-2013 | 921 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 |
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12961 |