Dodge Polara Back Up Light Bulb Size

The Dodge Polara back up light utilizes bulb sizes 1156 and 1073 along with the P21W component. Data for the specified vehicle covers the range from 1960 to 1973.

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
1963-1973	1156
1962	1073
1960-1961	1156

Bulb Specifications

Description	Bulb Size
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. Lower wattage variant of 1156. 12V, 13W.	1073

Other Locations

Additional Notes

The backup light bulb for the Dodge Polara is the 1156 across the majority of model years covered in the specifications, spanning 1960-1961 and 1963-1973.
The 1156 is an ANSI-standard single-filament bulb rated at 12 volts and 21 watts, fitted with a BA15s bayonet base.
The BA15s bayonet base designation indicates a single-contact base with a 15mm collar, which is a common automotive base type that requires correct rotational alignment during installation.
The 1962 Polara departs from the otherwise consistent fitment, using the 1073 bulb instead of the 1156.
The 1073 shares the same 12-volt rating and BA15s bayonet base as the 1156 but operates at a lower wattage of 13 watts, making it a reduced-output variant of the same base type.
Because the 1073 and 1156 share the same BA15s base, they are physically interchangeable in terms of socket fit, though their wattage ratings differ and the two bulbs are not electrically equivalent substitutes for one another.