Your Peterbilt 389 deserves parts that work hard and look sharp—and that’s exactly what you get with our aftermarket sleeper and cowl panels. Whether you’re replacing old panels or customizing your build, these premium panels offer a clean, custom fit that turns heads and holds strong.

Why Upgrade Your 389 with New Sleeper & Cowl Panels?

These sleeper and cowl panels are designed specifically for Peterbilt 389 and 388 models, so you get seamless integration without the hassle. From 36-inch flat tops to 78-inch sleepers, we’ve got panel options that match your truck’s size and style. Made from polished stainless steel or durable aluminum, these panels aren’t just for looks—they protect your cab and sleeper from road grime, wear, and weather. You can pair your purchase with aftermarket Pete 389 cab repair parts and accessories or a total day cab conversion.

Personalize Your Rig

Want to upgrade your truck’s curb appeal? These sleeper and cowl panels are a great place to start. Many styles include pre-drilled mounting holes, LED light cutouts, or riveted finishes for that classic custom look. Clean lines and mirror-polished surfaces give your 389 that showroom shine even after thousands of miles.

Best Benefits

- Designed for a perfect fit on Peterbilt 389 & 388 models - Made for 36", 44", 63", 70", and 78" sleepers - Choose from plain, lighted, or custom-cut styles - Built from high-quality stainless or aluminum for long life - Easy bolt-on installation to get back on the road faster
Whether you're looking to refresh your truck's side profile or add some extra protection and shine, these aftermarket sleeper and cowl panels deliver serious value. Consider upgrading your Pete 389 sleeper area as well for additional comfort and style inside and out. Upgrade your Peterbilt 389 with panels that work as hard as you do.