Ford Maverick Back Up Light Bulb Size

The Ford Maverick back up light bulb size chart specifies 3 bulb options: WT21W, 1156, and 1076 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	WT21W
1974-1977	1156
1973	1076
1970-1972	1156

Bulb Specifications

Description	Bulb Size
Ford OEM part. Single-filament wedge bulb (T20). Originally used in 2021+ Ford F-150, Bronco, and Maverick. 12V, 21W.	WT21W
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. Variant of 1156. 12V, 8W.	1076

Other Locations

Additional Notes

The Ford Maverick back up light bulb specifications cover two distinct model generations: the original 1970-1977 Maverick and the redesigned 2022-2026 Maverick, each using a different bulb type.
The WT21W is a Ford OEM single-filament wedge bulb in the T20 form factor, rated at 12V and 21W, and it fits the 2022-2026 Ford Maverick back up light position.
The T20 wedge base of the WT21W differs from the bayonet-style bases found on older ANSI-standard bulbs, meaning the WT21W is not interchangeable with the 1156 or 1076 bulbs used in earlier Maverick model years.
The 1156 is an ANSI-standard single-filament bulb with a BA15s bayonet base, rated at 12V and 21W, and it fits the 1970-1972 and 1974-1977 Ford Maverick back up light position.
The 1076 is also an ANSI-standard single-filament bulb with a BA15s bayonet base, but it is rated at only 8W rather than 21W, and it was specified for the 1973 Ford Maverick back up light position.
Although the 1076 and 1156 share the same BA15s bayonet base, their wattage ratings differ significantly. The 1076 draws 8W while the 1156 draws 21W, making them non-equivalent substitutes despite their physical compatibility.
The 1973 Ford Maverick is the only model year in these specifications to use the lower-wattage 1076 bulb rather than the 1156, which was used across all other years in the 1970-1977 generation.
The WT21W shares the same 12V and 21W electrical rating as the 1156 but uses a wedge base instead of a bayonet base, so the two bulbs are electrically similar yet physically incompatible with each other's sockets.