Peterbilt 357/378 Floor Trim

Frequently Asked Questions About Peterbilt 357/378 Floor Trim

What is floor trim and what does it cover in my Peterbilt 357/378?

Floor trim refers to the interior molding and panel pieces that cover the transition points on your cab floor, including edges around the doghouse, sill plates, and floor-to-wall junctions. These pieces are typically made from aluminum or stainless steel and are designed to give the cab interior a finished, factory-style appearance while protecting exposed edges from wear.

Will this floor trim fit my specific Peterbilt 357 or 378 model year?

Floor trim pieces are generally designed to match the factory floor layout for the 357 and 378 models, but cab configurations can vary by production year and interior style. Before ordering, check the product listing for any noted year ranges or measurements, and compare them against your truck's existing trim or floor dimensions to confirm a proper fit.

What materials and finish options are available?

Most floor trim pieces are offered in brushed or polished stainless steel, and some may be available in aluminum. The finish you choose should match the rest of your interior trim and gauge accents for a consistent look. Stainless steel options tend to hold up well against foot traffic and daily wear compared to painted or plastic alternatives.

How difficult is it to install floor trim myself?

Installation difficulty varies depending on the specific piece, but most floor trim is designed to bolt on or snap into existing factory mounting points using the original hardware locations. Basic hand tools are usually sufficient, and many customers complete installation without professional help. If a piece requires removing seats, panels, or flooring to access mounting points, expect a longer install time.

Can floor trim help cover damage or wear on my existing cab floor?

Floor trim is designed primarily to finish and protect edges rather than serve as a full floor repair solution. It can help conceal minor wear or gaps along seams and transitions, but it will not correct structural floor damage, rust-through, or significant unevenness. For serious floor issues, address the underlying problem before installing new trim.