Buell Lightning CityX XB9SX License Plate Bulb Size

The Buell Lightning CityX XB9SX uses a 12961 bulb size for the license plate application. The replacement chart covers 2005 through 2009 model 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.

Bulb Size by Year Range

Years	Bulb Size
2009	12961
2007	12961
2005	12961

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The Buell Lightning CityX XB9SX uses the T10 miniature wedge bulb format for its license plate position across the 2005, 2007, and 2009 model years.
The T10 designation refers to a tubular bulb approximately 10mm wide, commonly used in low-intensity automotive lighting positions such as license plate, parking, and courtesy applications.
The specific bulb referenced in these specifications is the Philips 12961, which operates at 12 volts and draws 5 watts.
The W2.1x9.5d base type is a wedge-style connector, meaning the bulb is held in place by tension from the socket rather than by a bayonet or screw mechanism.
At 5 watts, this bulb falls within the lower end of the automotive wattage range, consistent with its use in a non-illumination-critical position such as license plate lighting.
The 12961 part number is a Philips designation, though the T10 wedge format is a widely standardized size produced by multiple manufacturers, which affects cross-compatibility with equivalent replacements.
The same bulb size is specified uniformly across all three listed model years of the Lightning CityX XB9SX, indicating no change to the license plate lighting socket during that production span.