2013 Ford F-350 headlight fitment: The low-beam and high-beam headlights both use an H13 bulb. The supplied fitment data does not identify separate bulb options for projector or non-projector headlamp assemblies, so confirm the original headlight configuration before ordering.
Other useful exterior bulb sizes include 3157A for the front turn signal, parking light, and rear side marker. The front side marker may use either 2825 or 98. Rear lighting uses 3157R for the brake and tail lights, while the rear turn signal uses 3157. The reverse lights use 921, and the center stop light uses 912.
- License plate and courtesy lights: 194 or 7441
- Dome light: 578
- Map and engine lights: 906
- Glove box light: 161
- Trunk light: 912
There is no fog-light bulb listed in the supplied data for this model year.