Peterbilt 379 Floor Trim

Frequently Asked Questions About Peterbilt 379 Floor Trim

What is included in a Peterbilt 379 floor trim kit?

Floor trim for the Peterbilt 379 typically includes the metal or vinyl-covered panels and moldings that cover the cab floor around the doghouse (engine tunnel), pedals, and edges of the cab floor. These pieces are designed to match the factory look while covering wiring, seams, and floor edges for a clean, finished interior.

Will this floor trim fit my truck exactly, or will I need to modify it?

Most floor trim pieces are designed to follow the factory floor pan and doghouse contours of the Peterbilt 379, but because these trucks were built over many years with some variation in floor layout, sleeper configuration, and prior modifications, minor trimming or hole alignment may be needed. It's a good idea to compare your existing panel dimensions or take measurements before installing.

What materials and finish options are available?

Floor trim panels are commonly available in stainless steel, aluminum, or durable vinyl-covered options. Stainless and aluminum pieces are valued for their durability and resistance to wear from foot traffic, while vinyl-covered panels offer a factory-style appearance that can be easier to match to existing interior trim.

How do I install floor trim panels?

Installation generally involves removing the old or damaged trim (if replacing), aligning the new panel over the floor pan or doghouse, and securing it with the factory-style fasteners or screws provided or reused from the original piece. Some panels may need to be fitted around existing wiring, shifter boots, or floor mats, so it's best to test-fit the piece before final fastening.

Can floor trim help cover rust or damage on my cab floor?

Floor trim is designed to cover cosmetic seams and factory floor lines, not to serve as a structural repair for rust-through or damaged flooring. If there is significant corrosion or structural weakness in the floor pan itself, that should be addressed separately before installing new trim, since trim panels are not intended to bear structural load.