HOODS
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Hoods For Peterbilt Trucks
The hood is one of the most defining visual elements of a Peterbilt truck — the long, classic hood of the 389 is as recognizable as any vehicle on American roads. Whether you're replacing a hood after a collision, upgrading to a different material, or restoring a classic model, getting the right fit is essential for proper closure, latch engagement, and aerodynamic performance. We carry replacement hoods for Peterbilt trucks in fiberglass and other materials for popular models including the 389, 379, 567, and 579.
Frequently asked questions about hoods
What material is best for a Peterbilt hood replacement — fiberglass or OEM?
Fiberglass hoods are the most common aftermarket choice for Peterbilt long-hood models and offer a good balance of weight savings, repairability, and cost. Fiberglass can be cracked by severe impacts but is easier to repair than steel and doesn't rust. OEM hoods on newer aerodynamic models like the 579 use composite and SMC (sheet molded compound) panels that are engineered for aerodynamic performance and typically require OEM or high-quality direct-fit aftermarket replacements to maintain fuel efficiency specs.
Will an aftermarket hood affect my Peterbilt's fuel economy?
On classic long-hood models like the 379 and 389, hood aerodynamics have a relatively modest impact on overall fuel efficiency compared to fairings and trailer gap management. On aerodynamic models like the 579, the hood is part of an integrated aerodynamic package, and a non-OEM-spec hood that affects the cab-to-roof transition or mirror mounting angles can measurably affect fuel consumption at highway speeds. Stick with direct-fit hoods that match the original contour for aerodynamic-model replacements.
How difficult is hood replacement on a Peterbilt, and can it be done in the field?
Hood replacement on most Peterbilt models is a manageable shop job — the hood tilts forward on a hinge assembly, and replacement involves disconnecting the prop rod, unhooking the latch cable, and unbolting the hinge pivots. On tilt-hood models, having a second person or a hood lift assist tool makes the job significantly safer. Transferring hardware like hinges, latches, and insulation blankets from the old hood adds time but requires only basic hand tools. The job is typically a half-day to full-day task for a shop with experience on the model.