Peterbilt 375/377 Cab & Related

Frequently Asked Questions About Peterbilt 375/377 Cab & Related

What kinds of parts are included in this category?

This category covers cab components and related hardware for Peterbilt 375 and 377 models, including cab corners, cab panels, door skins, interior trim pieces, mounting hardware, and other structural or cosmetic cab parts. These parts are used for repairing rust or collision damage, replacing worn interior components, or restoring the cab to its original condition.

Will these parts fit my specific Peterbilt 375 or 377?

Peterbilt made a number of running changes to the 375 and 377 over their production years, so cab dimensions, mounting points, and trim details can vary. Always check the fitment notes listed on each product page and compare them to your truck's model year and cab configuration before ordering. If you are unsure, contact our parts team with your VIN or truck specs so we can confirm compatibility.

Are these parts made from steel or fiberglass, and are they painted?

Cab components in this category are available in different materials depending on the part -- some structural pieces are steel, while certain panels and trim may be fiberglass or plastic composite. Most parts ship unpainted or in primer so they can be color-matched to your truck during installation. Check the individual product description for the specific material and finish.

Do I need professional installation, or can these be installed myself?

Some smaller trim and interior pieces are straightforward bolt-on replacements that an experienced DIYer can install with basic tools. Larger structural components, such as cab corners or panels involved in body repair, typically require cutting, welding, or fitting work and are best handled by a qualified body shop or truck repair technician. Review the product listing for any installation notes before you buy.

Are these OEM parts or aftermarket replacements, and how do they compare in fit and quality?

This category includes both OEM Peterbilt parts and quality aftermarket alternatives. Aftermarket parts are manufactured to match OEM dimensions and mounting points as closely as possible, but minor fitment adjustments are sometimes needed during installation. If exact factory fit is a priority, look for parts labeled OEM or contact us to confirm which option best suits your repair.