Dodge Avenger Back Up Light Bulb Size

The Dodge Avenger back up light bulb size chart specifies 3 distinct bulb sizes: 921, 3157, and 1156 for this vehicle model. The replacement chart covers vehicle production years spanning from 1995 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	921
2008-2010	3157
1995-2000	1156

Bulb Specifications

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

Other Locations

Additional Notes

The Dodge Avenger back up light specifications cover model years 1995-2000 and 2008-2014, with three distinct bulb types used across those years.
The 921 bulb is a T15 wedge type rated at 12V and 16W, and it fits the Dodge Avenger for model years 2011-2014.
The 3157 is a dual-filament T25 wedge bulb rated at 12V with a 27W/7W filament configuration, meaning it carries two separate filaments within a single housing, and it fits model years 2008-2010.
The 1156 bulb uses a BA15s bayonet base rather than a wedge-style fitting, which makes it physically incompatible with sockets designed for wedge-type bulbs such as the 921 or 3157.
The 1156 is a single-filament bulb rated at 12V and 21W, and it is specified for the Dodge Avenger across model years 1995-2000.
All three bulb types conform to ANSI standards recognized in both the United States and Canada.
The 3157 dual-filament design differs functionally from the single-filament 921 and 1156 bulbs, and substituting one for another without confirming socket compatibility risks improper fitment or electrical mismatch.
The wattage varies across the three bulb types, with the 921 at 16W, the 1156 at 21W, and the 3157 drawing up to 27W on its primary filament, reflecting different load demands on the vehicle's electrical circuit.