Dorman has a long history of finding the most reliable parts solutions and alternatives to the highly priced “dealer only” OEM heavy-duty parts. The team of professional engineers at Dorman has collected and examined a massive amount of failed OEM parts to determine how and why they fail. They’ve had a great deal of success redesigning parts with the goal of reducing or eliminating entirely the most common failure patterns.

BIG Machine Parts is your complete source for replacement Peterbilt OEM parts online. In this collection you’ll see only high-quality Peterbilt truck parts and kits, so you’re sure to find what you need to get the job done.

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