Ford Bronco Sport Back Up Light Bulb Size

The Ford Bronco Sport back up light utilizes a 7440 bulb size for illumination. Data for the specific component covers the range from 2021 to 2023.

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
2021-2023	7440

Description	Bulb Size
ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W.	7440

The Ford Bronco Sport uses the 7440 bulb for the back up light across the 2021-2023 model years.
The 7440 is classified under the ANSI standard, which governs bulb specifications in the United States and Canada.
This bulb follows the T20 wedge form factor, a designation that refers to its physical shape and base type, where the wedge base replaces a traditional metal contact pin.
The 7440 operates on a 12-volt electrical system, consistent with standard automotive voltage.
At 21 watts, the 7440 produces a relatively high output for a single-filament wedge bulb, which is typical for reverse light applications requiring broad illumination behind the vehicle.
The single-filament design means the 7440 serves one lighting function only, distinguishing it from dual-filament variants such as the 7443, which would not be a direct replacement despite sharing a similar form factor.