Peterbilt 357/378 Hood Replacement Parts

Frequently Asked Questions About Peterbilt 357/378 Hood Replacement Parts

Will these hood parts fit my specific Peterbilt 357 or 378 model year?

Hood styling and mounting points can vary across production years for the Peterbilt 357 and 378, so it's important to check the fitment notes listed on each product page before ordering. If you're unsure whether a hood, hood panel, or related component matches your truck's model year and configuration, contact our parts specialists with your VIN or truck details so we can confirm compatibility before you buy.

What material are these hood replacement parts made from, and how does it compare to the factory original?

Most hood panels and shells for the 357/378 are constructed from fiberglass, which matches the material used on the original factory hoods. Fiberglass offers a good balance of durability and weight while allowing for a finish that closely resembles OEM styling. Product listings will specify the exact material and construction used for each part.

Do these hoods and hood panels come pre-painted, or will I need to have them painted after purchase?

Availability varies by product, with some hoods offered in gelcoat or primed finishes that require paint matching to your truck, while others may be available pre-painted depending on the manufacturer and stock at the time of your order. Check the specific product description for finish details, and reach out to our team if you need help sourcing a painted option.

Can I install a replacement hood myself, or should I have a professional handle it?

Installing a full hood or major hood panel typically involves aligning and securing large fiberglass components to the hood's hinge and latch mechanisms, which can be done by an experienced DIYer with the right tools and a helper on hand. However, because proper alignment affects how the hood opens, closes, and seals against the cab, many customers choose to have installation done by a qualified truck repair shop, especially for full hood replacements.

Are these replacement hood parts DOT compliant and safe to use on the road?

Replacement hoods and hood components sold in this category are designed to replace factory parts and maintain the same fit, function, and structural role as the original equipment. That said, it's your responsibility to ensure any part you install meets applicable state and federal regulations for your vehicle, particularly if the part affects visibility, lighting, or mounting of other required components. If you have specific compliance questions, we recommend consulting your local DOT office or a certified truck technician.