Peterbilt 357/378 Hoods

Frequently Asked Questions About Peterbilt 357/378 Hoods

Will this hood fit my Peterbilt 357 or 378 without modification?

Hoods are designed to match the factory dimensions and mounting points of the Peterbilt 357 and 378 models, but fitment can vary slightly depending on the year of your truck and whether it has been modified from stock. Before ordering, check the listed year range and compare mounting hole locations and hinge points to your existing hood to confirm a proper fit.

What material are these hoods made from, and how does it hold up over time?

Most replacement and aftermarket hoods for these models are constructed from fiberglass, which offers a good balance of durability, weight, and cost compared to steel. Fiberglass hoods resist corrosion and are relatively easy to repair if they sustain minor cracks or chips, but they should be handled carefully during installation to avoid stress fractures.

Do these hoods come primed and painted, or will I need to paint them myself?

Hoods typically ship in a gel-coated or primed finish rather than a fully painted, color-matched state. This gives you a smooth, ready-to-paint surface, but you should plan on having the hood painted to match your truck before or after installation for a finished look.

What is involved in installing a replacement hood, and can I do it myself?

Installation generally involves removing the damaged or old hood from the hinge assembly, transferring or installing hardware such as latches, hinges, and light brackets, and securing the new hood in place. Many experienced truck owners and shops handle this job themselves, but because proper alignment affects how the hood opens, closes, and seals against the cab, having a second set of hands and basic tools on hand makes the process much easier.

Are these hoods sold complete with lights, brackets, and other hardware, or just the hood shell?

This varies by listing, so it is important to check the product description closely. Some hoods are sold as a bare shell only, while others may include mounting hardware or brackets. In most cases, components like headlights, marker lights, and latches are sold separately and will need to be transferred from your old hood or purchased individually.