Affordable Alternatives Without Sacrificing Performance: Our catalog includes aftermarket replacement parts for a variety of systems including lighting, body panels, mirrors, engine components, electrical parts, and cooling systems. Each part is carefully chosen for compatibility with Peterbilt and other major truck brands, ensuring proper fit, reliable performance, and long-term durability. Whether you drive a Peterbilt 379, 389, or another model, we’ve got the parts to keep your rig rolling. Why Buy Aftermarket Parts from Pete Truck Parts? When it comes to aftermarket truck parts, not all options are created equal. At Pete Truck Parts, we’ve done the hard work of finding aftermarket products that meet strict standards — so you get the savings you want without sacrificing safety or reliability. Our team knows trucks inside and out and can help you find the exact part you need fast. With competitive pricing and nationwide shipping, we make it easy to get back on the road quickly. Explore our full line of aftermarket Peterbilt parts below or reach out to our team if you need help locating a specific part.