Plymouth TC3 Dome Light Bulb Size

The Plymouth TC3 dome light requires bulb size 211-2 or 912 depending on the specific configuration of the vehicle. Data for the bulb specifications covers the range from 1980 to 1982.

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
1982	211-2
1980-1981	912

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2
ANSI standard (US & Canada). Wedge bulb (T15). Variant of 921. 12V, 12W.	912

Other Locations

Additional Notes

The Plymouth TC3 dome light specifications reference two bulb types across its model years: the 211-2 and the 912.
Both the 211-2 and the 912 are ANSI-standard bulbs recognized in the United States and Canada, operating at 12 volts and 12 watts.
The 211-2 is a festoon-style bulb with a 41mm length and an SV8.5 base. Festoon bulbs mount by pressing their end caps into spring clips rather than inserting into a socket, which is a physically distinct mounting method from wedge-type bulbs.
The 912 is a T15 wedge bulb, a form factor in which the base of the glass envelope itself acts as the electrical contact, requiring no separate metal base.
The 912 is classified as a variant of the 921 bulb. While the two share the same T15 wedge form factor and voltage rating, they are not always interchangeable, as differences in wattage or filament position between variants can affect fitment and function in specific housings.
The Plymouth TC3 (1980-1981) uses the 912 bulb for the dome light, while the 1982 model year uses the 211-2 instead.
The shift from a wedge-type bulb in 1980-1981 to a festoon-type bulb in 1982 indicates a change in the dome light housing design, as the two bulb formats are physically incompatible with each other's mounting systems.