Plymouth Fury II Back Up Light Bulb Size

The Plymouth Fury II back up light uses bulb sizes 1073, 1156, and P21W depending on the specific version of the component. Data for the lighting components covers the range from 1965 to 1974.

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
1970-1974	1156
1969	1073
1967-1968	1156
1965-1966	1073

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 Plymouth Fury II backup light specifications span the 1965-1974 model years, covering two distinct bulb sizes across that range.
The 1156 and 1073 bulbs are both ANSI-standardized single-filament types fitted with a BA15s bayonet base, operating at 12 volts.
The BA15s bayonet base is a single-contact design, which corresponds to the single-filament construction of both bulb types used in this application.
The 1156 bulb operates at 21 watts, while the 1073 operates at 13 watts, making the two types electrically distinct despite sharing the same base configuration.
Because the 1156 and 1073 share the BA15s base, one will physically fit the socket of the other, but the wattage difference means they are not functionally interchangeable without affecting light output.
The Plymouth Fury II used the 1073 bulb for the 1965, 1966, and 1969 model years, and the 1156 for all other years in this specification range.
The 1968 model year returned to the 1156 after the 1073 was specified for 1966 and 1969, indicating the bulb selection was not uniform across the production run.
The 1970-1974 model years consistently used the 1156 bulb, representing the longest uninterrupted run of a single bulb type within these specifications.