Ford EcoSport Back Up Light Bulb Size

Ford EcoSport back up light bulb size specifications include 7443 and 1156 bulb options for this vehicle model. The replacement chart covers 2018 through 2021 production years with corresponding bulb size data.

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
2021	7443
2018-2020	1156

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T20). 12V, 21W/5W.	7443
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156

Other Locations

Additional Notes

The Ford EcoSport backup light specifications cover model years 2018-2021 and reference two distinct bulb types: the 7443 and the 1156.
The 1156 is a single-filament bulb with a BA15s bayonet base, rated at 12V and 21W, and conforms to the ANSI standard applicable in the US and Canada.
The 7443 is a dual-filament wedge bulb in the T20 form factor, rated at 12V with a 21W/5W filament configuration, and also conforms to the ANSI standard for the US and Canada.
The dual-filament design of the 7443 means it carries two separate filaments within a single bulb, each operating at a different wattage for different lighting functions.
The BA15s bayonet base of the 1156 uses a single-contact locking mechanism, which is physically incompatible with dual-contact bayonet bases used by other bulb types.
The Ford EcoSport (2018-2020) uses the 1156 for the backup light position, while the 2021 model year uses the 7443.
The 1156 and 7443 are not interchangeable. The 1156 uses a bayonet base, while the 7443 uses a wedge base, making the two physically incompatible with the same socket.
Both bulb types share the same 12V operating voltage and a 21W output on their primary filament, though their base types and filament counts differ.