The Ford F-750 brake light utilizes 3157 and 2057 bulb sizes for the lighting components. Data for the specified vehicle covers the range from 2000 through 2022.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Ford F-750 brake light specifications reference two distinct dual-filament bulb types across different model years: the 3157 and the 2057.
The 3157 is a dual-filament wedge bulb of the T25 type, rated at 12V with a 27W high-filament and 7W low-filament draw, and it conforms to ANSI standards applicable in both the US and Canada.
The 2057 carries a BAY15d bayonet base rather than a wedge mount, operates at 12V with a 26.9W high-filament and 8W low-filament draw, and is classified as a brighter variant of the 1157 under ANSI standards.
Although the 3157 and 2057 share a dual-filament design and similar wattage ratings, their base types are not interchangeable: the 3157 uses a wedge fit while the 2057 uses a bayonet fit.
The Ford F-750 uses the 3157 bulb for brake lights across the 2017-2019 and 2021-2022 model years.
The 2057 bulb is specified for brake lights on the 2000-2003 Ford F-750.
The center high mount stop light on the 2017-2019 Ford F-750 uses the 912 bulb, a separate specification from the main brake light position on those same model years.
The 912 is a single-filament wedge bulb of the T15 type, rated at 12V and 12W, and is a variant of the 921 under ANSI standards.
The lower wattage of the 912 relative to the 3157 reflects its role as a supplemental stop light rather than a primary brake light source.
The 3157 and 2057 are not interchangeable despite both being dual-filament brake bulbs, as their differing base configurations require sockets specific to each type.