The Ford F-350 Super Duty brake component utilizes unique bulb sizes 3157, 2458, and 4157 depending on the specific version required for the lighting assembly. Data for the lighting components spans a range from 1999 through 2023 to provide information for various vehicle versions.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Ford F-350 Super Duty uses the 3157 bulb for the brake light position across the majority of its model years, spanning 1999-2023, with the sole exception of the 2006 model year, which uses the 4157 instead.
Both the 3157 and 4157 are ANSI-standard dual-filament wedge bulbs in the T25 form factor, rated at 12V with a 27W high filament and a 7W low filament. The dual-filament design allows a single bulb to serve both brake and running light functions.
Although the 3157 and 4157 share the same voltage, wattage, and T25 form factor, they are distinct ANSI part numbers. Direct substitution between them is not confirmed by these specifications, and the 2006 Ford F-350 Super Duty is the only model year listed with the 4157.
For the 2017-2020 model years, the brake light specification of 3157 carries a "With Halogen Capsule Headlamps" condition, indicating that this fitment applies specifically to trucks equipped with that headlamp configuration.
The center high mount stop light on the Ford F-350 Super Duty transitioned from the 922 bulb to the 912 bulb between the 2010 and 2011 model years, representing the only bulb change across the entire specification range for that position.
The 922 is an ANSI-standard T15 wedge bulb rated at 12V and 16W, and it serves the center high mount stop light on the F-350 Super Duty from 1999-2010.
The 912 is an ANSI-standard T15 wedge bulb rated at 12V and 12W, and it is described as a variant of the 921. It draws 4W less than the 922 it replaced in the center high mount stop light position from 2011 onward.
Because the 912 and 922 share the T15 wedge form factor, physical fitment between the two is possible, but their differing wattage ratings of 12W and 16W respectively means they are not specification-equivalent replacements for one another.
The 2019-2020 center high mount stop light specification also carries the "With Halogen Capsule Headlamps" notation for the 912 bulb, consistent with the conditional fitment noted in the brake light data for those same years.