Chrysler Aspen Back Up Light Bulb Size

The Chrysler Aspen back up light requires a 3057 bulb size for the specific lighting component located at the rear of the vehicle. Data for the bulb specifications covers the range from 2007 to 2009.

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
2007-2009	3057

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W.	3057

Other Locations

Additional Notes

The 3057 bulb is the specified back up light bulb size for the Chrysler Aspen across its 2007-2009 model years.
The 3057 follows the ANSI standard, meaning it conforms to a recognized North American specification used in both the United States and Canada.
It is a dual-filament bulb, which means it contains two separate filaments within a single housing, each operating at a different wattage: 27W for the higher-intensity filament and 7W for the lower-intensity filament.
The bulb operates on a 12V electrical system, consistent with the standard voltage found in conventional passenger vehicles.
The 3057 uses a T25 wedge base, a designation that refers to the shape and size of the base used to seat the bulb within its socket.
Because the 3057 is a dual-filament type, substitution with a single-filament bulb of similar wattage would not be electrically equivalent and could affect circuit function.