Porsche Boxster Brake Bulb Size
The Porsche Boxster brake light utilizes P21/4W, P21/5W, and P21W bulb sizes depending on the specific version of the vehicle. Available data for the lighting components covers a range from 1997 through 2008.
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 |
|---|---|
| 2008 | P21/4W |
| 2005-2007 | P21/5W |
| 1997-2004 | P21W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAZ15d bayonet base. 12V, 21W/4W. | P21/4W |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |