Mercedes-Benz GL550 Tail Light Bulb Size
The Mercedes-Benz GL550 outer tail light uses a P21W bulb size for replacement applications. The replacement chart covers 2008 to 2009 vehicle production 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.
Outer Tail Light
| Years | Bulb Size |
|---|---|
| 2008-2009 | P21W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |