GMC Yukon License Plate Bulb Size

The GMC Yukon license plate light uses 194 and 12961 bulb sizes according to the provided specifications for the various vehicle versions. Data covers the range from 1992 through 2023 for the specific components listed in the provided chart.

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	194
2021	194
2014-2020	12961
1992-1999	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The GMC Yukon license plate bulb uses one of two T10 miniature wedge bulb types across its model years: the 194 and the 12961.
The 194 is an ANSI-standardized bulb recognized across the US and Canadian markets, rated at 12V and 3.78W.
The 12961 is a Philips part number designation for a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W.
Although both the 194 and the 12961 share the T10 wedge form factor, the 12961 draws 5W compared to the 194's 3.78W, meaning the two are not electrically identical.
The GMC Yukon (1992-1999) uses the 194 bulb for the license plate position.
Model years 2014-2020 use the 12961 bulb, reflecting a shift to the higher-wattage Philips-designated T10 variant.
The 2021 and 2023 model years return to the 194 bulb specification for the license plate position.
The W2.1x9.5d base designation on the 12961 refers to a specific wedge base standard, where the numbers describe the pin spacing and insertion depth of the bulb's base contacts.
Because the 194 carries an ANSI designation, it is produced by multiple manufacturers, whereas the 12961 is identified by a Philips-specific part number.
Both bulbs operate on a 12V system, consistent with standard automotive electrical architecture.