Buick Encore Trunk Bulb Size

The Buick Encore trunk utilizes a 12961 bulb size for illumination purposes within the rear cargo area of the vehicle. Available data for the specified component covers the range from 2013 to 2020.

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
2013-2020	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 Buick Encore uses the 12961 bulb for the trunk across the 2013-2020 model years.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor.
T10 refers to the bulb's tubular shape, with the number indicating a width of 10 millimeters.
The 12961 uses a W2.1x9.5d wedge base, which is a baseless design that relies on the glass envelope itself to make contact within the socket.
The bulb operates at 12 volts and 5 watts, consistent with low-power interior lighting applications such as trunk illumination.
The W2.1x9.5d base type is not interchangeable with bayonet or festoon base sockets, as the wedge design requires a specific socket configuration.