Make
Peterbilt parts
Peterbilt coverage is limited to 2 Dorman parts for trucks built from 2000 to 2016. Both fit the Peterbilt 379, and one also fits the 386. The listings are a fender and a fuel level sending unit, each shown with the exact years it fits.
Models
Peterbilt parts we list
There are two Peterbilt listings, both from Dorman. One is a fender and the other is a fuel level sending unit, which reads the fuel level in the tank and sends it to the gauge. The 379 is covered by both parts, and the 386 by one of them. That is the full Peterbilt range at present.
Confirming fit on a Peterbilt
Peterbilt trucks are built to order, so tank sizes, fender styles and wiring can vary between trucks of the same model and year. For a sending unit, match the tank depth and the gauge type. For a fender, check the mounting points and side. Compare the part number on your old part and confirm the fitment table matches your truck.
Replacing a fuel level sending unit
Work in a ventilated area away from sparks and flames, and disconnect the battery first. Lower the fuel level if the sender sits below it, and fit a new gasket so the tank seals properly. After installation, check the gauge reading against a known fill, and inspect for fuel leaks before returning the truck to service.
Peterbilt questions
Which Peterbilt models do you have parts for?
The 379 and 386, with 2 Dorman listings covering trucks from 2000 to 2016. Both fit the 379, and one also fits the 386.
How do I choose a fuel sending unit for a Peterbilt 379?
Match the tank depth and gauge type, then compare the part number on your old sender. Tanks vary between trucks, so the listing details matter.
Why does my Peterbilt fuel gauge read wrong?
A worn sending unit is a common cause, though wiring and the gauge itself can also be at fault. Test the sender's output before replacing it.