Ford Maverick Tail Light Bulb Size

The Ford Maverick tail light bulb size chart specifies replacement bulb options including WT21/7W and 1157 sizes for this vehicle model. The replacement chart covers data spanning from 1970 to 2026 across all applicable production years.

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
2022-2026	WT21/7W
1970-1977	1157

Bulb Specifications

Description	Bulb Size
Ford OEM part. Dual-filament wedge bulb (T20). Originally used in 2021+ Ford F-150, Bronco, and Maverick. 12V, 21W/7W.	WT21/7W
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.	1157

Other Locations

Additional Notes

The Ford Maverick tail light specifications cover two distinct model generations, with the 1970-1977 models using the 1157 bulb and the 2022-2026 models using the WT21/7W bulb.
The 1157 is an ANSI-standardized dual-filament bulb with a BAY15d bayonet base, rated at 12V with a 21W/5W output split across its two filaments.
The WT21/7W is a dual-filament wedge bulb in the T20 form factor, rated at 12V with a 21W/7W output split, and is designated as a Ford OEM part.
Both bulb types are dual-filament designs, meaning each serves two lighting functions within a single housing, typically combining stop and tail light operation.
The 1157 uses a BAY15d bayonet base, a twist-and-lock socket type that is not physically compatible with the wedge-style socket required by the WT21/7W.
The WT21/7W carries a higher secondary filament wattage (7W) compared to the 1157 (5W), reflecting a difference in tail light brightness between the two bulb types.
The WT21/7W was originally introduced in the 2021 Ford F-150 and Bronco before its application in the Ford Maverick (2022-2026), indicating shared OEM sourcing across Ford platforms.
The 1157 is standardized under ANSI specifications for the US and Canadian markets, making it broadly interchangeable with other vehicles using the same standard during that era.
The WT21/7W wedge base and the 1157 bayonet base represent fundamentally different socket designs, and the two bulbs are not interchangeable with each other.