Buell XB9SX Lightning Tail Light Bulb Size
The Buell XB9SX Lightning tail light requires a P21/5W bulb size for proper illumination. A replacement chart covering 2005 through 2009 model years documents the bulb specifications for this motorcycle.
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 |
|---|---|
| 2005-2009 | P21/5W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W |