Dodge Charger Back Up Light Bulb Size

The Dodge Charger back up light bulb size chart specifies 3 distinct bulb sizes: 3157, 921, and 1156 for the back up light component. The replacement chart covers vehicle production data spanning from 1966 to 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	3157
2006-2010	921
1987	1156
1983	1156
1973-1978	1156
1972	1141
1968-1971	1156
1967	1141
1966	1156

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3157
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1141

Other Locations

Additional Notes

The Dodge Charger back up light specifications cover three distinct bulb types across the model's history: the 3157, 921, 1156, and 1141, all of which conform to ANSI standards recognized in the United States and Canada.
The 1156 bulb is the most frequently specified type across the Dodge Charger's back up light fitments, appearing in model years 1966, 1968-1971, and 1973-1976, as well as 1978, 1987.
The 1156 is a single-filament bulb operating at 12V and 21W, mounted with a BA15s bayonet base, which features a single locating pin on the base collar to ensure a fixed rotational position during installation.
The 1141 bulb shares the same BA15s bayonet base, 12V operating voltage, and 21W rating as the 1156, making the two technically similar, though they are listed as distinct part numbers for the 1967 and 1972 Charger respectively.
Because the 1141 and 1156 share the same base type and wattage, substitution between them warrants verification against the specific socket and housing of the vehicle before use.
The 921 is a wedge-style bulb of the T15 form factor, rated at 12V and 16W, and serves as the specified back up light bulb for the Dodge Charger across the 2006-2010 model years.
Wedge bulbs such as the 921 do not use a separate base pin; instead, the bulb's glass envelope and wire leads are pressed directly into the socket, which distinguishes them from the bayonet-mount 1156 and 1141 types.
The 3157 is a dual-filament T25 wedge bulb rated at 12V with a 27W primary filament and a 7W secondary filament, and it is specified for the Dodge Charger (2011-2014).
The dual-filament design of the 3157 means it is wired to support two separate lighting functions within a single housing, and using a single-filament substitute in a 3157 socket would result in the loss of one of those functions.
The transition from the 921 single-filament wedge to the 3157 dual-filament wedge between the 2010 and 2011 Charger reflects a change in socket and wiring configuration, meaning the two bulb types are not interchangeable despite both using a wedge mounting style.