Ducati Monster S2 License Plate Bulb Size

The Ducati Monster S2 license plate bulb uses a 12961 size, with specifications detailed in the replacement chart. The data covers vehicle production from 2005 to 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
2005-2008	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 Monster S2 uses the 12961 bulb for the license plate position across the 2005-2008 model years.
The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12 volts and 5 watts.
The T10 designation refers to a tubular bulb approximately 10mm wide, a form factor widely used in low-intensity automotive lighting positions such as license plate illumination.
The W2.1x9.5d base is a wedge-type fitting, meaning the bulb is held in place by tension from the socket rather than by a bayonet or screw mechanism.
At 5 watts, the 12961 operates at a low power draw consistent with its role as an auxiliary lighting bulb rather than a primary illumination source.
The consistent use of a single bulb type across all four model years indicates no mid-cycle change to the license plate lighting specification for the Monster S2 during this period.
When sourcing a replacement, the W2.1x9.5d base type must match exactly, as wedge bulbs with differing base widths or pin spacing are not interchangeable even if the outer envelope appears similar.