Chrysler Concorde Back Up Light Bulb Size

The Chrysler Concorde back up light utilizes a 921 bulb size for illumination purposes. Available information covers a span of time starting in 1993 and ending in 2004.

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
1993-2004	921

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921

Other Locations

Additional Notes

The Chrysler Concorde uses the 921 bulb size for the back up light across all listed model years from 1993-2004.
The 921 is a wedge-type bulb, meaning it uses a plastic wedge base rather than a metal contact pin or bayonet fitting, which allows it to be inserted directly into a socket without a separate holder.
The T15 designation refers to the bulb's tubular shape, with the number indicating a width of 15 eighths of an inch.
The 921 operates at 12 volts, which is consistent with the standard electrical system voltage found in conventional passenger vehicles.
At 16 watts, the 921 falls within the low-wattage range typical of reverse lighting applications, where output requirements are moderate compared to headlamps or fog lights.
The 921 carries an ANSI standard classification, meaning its physical and electrical specifications conform to a defined industry standard recognized in both the United States and Canada.
Because the 921 is a standardized ANSI bulb, it is produced by multiple manufacturers, and units from different brands are generally interchangeable as long as the T15 wedge base and 12V/16W ratings are matched.
Substituting a bulb with a higher wattage rating than 16W is not supported by these specifications, as doing so may exceed the thermal and electrical tolerances of the socket.