Chrysler Cordoba Back Up Light Bulb Size

The Chrysler Cordoba back up light utilizes 1156 and P21W bulb sizes for the rear illumination system. Data for the specified lighting components covers the range from 1975 to 1983.

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
1975-1983	1156

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156

Other Locations

Additional Notes

The 1156 is the sole back up light bulb size listed for the Chrysler Cordoba across the 1975-1983 model years.
The 1156 is an ANSI-standardized bulb type, meaning its physical and electrical specifications conform to a recognized North American standard used in both the United States and Canada.
The 1156 operates on a 12-volt electrical system and draws 21 watts, which is typical of incandescent automotive bulbs used in reverse lighting applications.
The 1156 is a single-filament bulb, meaning it serves one lighting function rather than switching between two brightness levels as a dual-filament bulb would.
The 1156 uses a BA15s bayonet base, a single-contact mount that locks into the socket with a twist rather than a threaded connection.
The BA15s base designation is distinct from the BA15d base found on dual-filament bulbs. These two base types are not interchangeable despite their similar physical size, as the contact configuration differs.