Chrysler 300 License Plate Bulb Size

The Chrysler 300 license plate component utilizes bulb sizes 63, 67, and 12961 across various production periods. Available data covers the specific range from 1955 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
2011-2014	12961
1956-1971	67
1955	63

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 8W.	67
ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 0.63W.	63

Other Locations

Additional Notes

The Chrysler 300 license plate bulb specifications cover three distinct bulb types across the model's history: the 12961, the 67, and the 63.
The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W. The Chrysler 300 (2011-2014) uses this bulb for the license plate position.
The W2.1x9.5d base on the 12961 is a wedge-type fitting, meaning the bulb is held in place by tension from the socket rather than by a locking mechanism such as a bayonet.
The 67 is an ANSI-standard bulb recognized in both the US and Canada, featuring a BA15s single-contact bayonet base rated at 12V and 8W. The Chrysler 300 used this bulb for the license plate position across the 1956-1971 model years.
The BA15s bayonet base on the 67 bulb uses a single contact point at the base, which distinguishes it from dual-contact bayonet variants and makes it non-interchangeable with those types.
The 67 bulb is described as a lower wattage variant of the 1156. While both share the BA15s base, the 1156 is rated at a higher wattage, so the two are not equivalent replacements despite their physical similarity.
The 63 is an ANSI-standard bulb with a BA9s base, rated at 12V and 0.63W. The Chrysler 300 used this bulb for the license plate position in the 1955 model year.
The BA9s base on the 63 bulb is a miniature bayonet fitting, physically smaller than the BA15s base found on the 67. These two base types are incompatible with each other.
At 0.63W, the 63 bulb draws considerably less power than either the 67 at 8W or the 12961 at 5W, reflecting the lower electrical output typical of mid-1950s automotive lighting systems.
The shift from the 67 bulb to the 12961 between the 1971 and 2011 model years represents a change from a bayonet-base incandescent to a wedge-base miniature bulb, with the two types requiring different socket designs and therefore not being interchangeable.