Scion xD Trunk Bulb Size

The Scion xD trunk area utilizes a single 12961 bulb size for illumination purposes within the rear cargo compartment. Data for the specific component covers a continuous range from 2008 through 2014.

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
2008-2014	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 12961 is the sole trunk bulb size listed for the Scion xD across all model years covered by the specifications, spanning 2008-2014.
The 12961 is a Philips part number designating a miniature wedge bulb built on the T10 form factor, which is one of the most widely used bulb types in automotive interior and cargo lighting applications.
The bulb operates at 12 volts and draws 5 watts, placing it in the low-wattage range typical of interior illumination rather than exterior lighting.
The W2.1x9.5d base type is a wedge-style base, meaning the bulb is held in its socket by the tension of the base itself rather than by a bayonet or screw mechanism.
The T10 designation refers to the bulb's tubular envelope width, expressed in tenths of an inch, making it a relatively narrow miniature bulb suited to compact socket housings.
Because the 12961 is a Philips-branded part number, equivalent bulbs from other manufacturers are generally cross-referenced under the broader T10 / W5W category, though fitment should be confirmed against the W2.1x9.5d base specification before substitution.