Ducati 748 Biposto License Plate Bulb Size

The Ducati 748 Biposto uses a 12961 bulb size for the license plate fixture. The replacement chart covers 1997 to 1999 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.

Bulb Size by Year Range

Years	Bulb Size
1997-1999	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 Ducati 748 Biposto uses the T10 miniature wedge bulb for its license plate light across the 1997-1999 model years.
The T10 designation refers to a tubular bulb with a 10mm body width, commonly found in low-intensity automotive lighting positions such as license plate, parking, and courtesy lights.
The W2.1x9.5d base type is a wedge-style base, meaning the bulb is held in its socket by the tension of the socket walls rather than by a bayonet or screw mechanism.
The bulb operates at 12 volts and draws 5 watts, placing it in the low-wattage range typical of auxiliary and marker lighting applications.
The part number 12961 is a Philips designation, indicating this is a manufacturer-specific catalog reference rather than a universal industry code.
The W2.1x9.5d base specification defines both the contact pin width at 2.1mm and the base length at 9.5mm, which are the critical fitment tolerances for socket compatibility.
T10 wedge bulbs of this base type are widely cross-referenced across automotive applications, though socket depth and retention fit can vary between vehicle platforms, making direct substitution dependent on physical socket compatibility.