Ford Transit License Plate Bulb Size

The Ford Transit license plate bulb uses a 12961 bulb size for the specified vehicle production range. The replacement chart covers 2015 through 2023 model years with corresponding bulb size data.

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
2023	12961
2015-2020	12961

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

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Additional Notes

The Ford Transit (2015-2023) uses the 12961 bulb for the license plate position across all listed model years.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, operating at 12 volts and 5 watts.
The T10 designation refers to a tubular bulb with a width of 10 millimeters, a standard sizing classification used across many low-wattage automotive lighting positions.
The W2.1x9.5d base type is a wedge-style connector, 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 falls within the low-power range typical of non-illuminating indicator and auxiliary positions such as license plate lighting.
The W2.1x9.5d base specification is a precise fitment standard, and substituting a bulb with a different base type would result in an incompatible fit regardless of voltage or wattage similarity.
The T10 wedge format is shared by several bulb variants across different wattages and manufacturers, so base type and wattage must both match the 12961 specification to ensure correct fitment in the Ford Transit license plate socket.