Triumph Rocket III Classic License Plate Bulb Size

The Triumph Rocket III Classic uses a 12961 bulb size for the license plate light assembly. The replacement chart covers vehicle production from 2006 to 2009 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 Type	Shop
2006-2009	12961	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price

Other Locations

Additional Notes

The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor with a W2.1x9.5d base, rated at 12 volts and 5 watts.
The T10 designation refers to the bulb's tubular shape, while the W2.1x9.5d base describes a wedge-type connection where the electrical contacts are formed by the glass envelope itself rather than a separate metal base.
The Triumph Rocket III Classic uses the 12961 bulb for the license plate position across the 2006-2009 model years.
The W2.1x9.5d wedge base is a standardized fitting, meaning functionally equivalent T10 bulbs from other manufacturers sharing that base type are generally interchangeable with the 12961, provided the 12V and 5W ratings are matched.