- 67" Length x 6" Width Fiberglass Cab/Cowl Panels For Peterbilt 389 Extended 131 BBC With Diesel.....$359.99FB-CP389-20Upgrade your Peterbilt 379 or 389 with our premium fiberglass cab and sleeper panels, designed for durability and style. Explore our extensive range of products, including the Peterbilt 379 Fiberglass Custom 8 Inch Cab/Cowl Panel With Scoop, Peterbilt 379 Extended Hood Fiberglass Low Rider Fender Kit, and Peterbilt 379 Cab Panel. Enhance your truck's look with Peterbilt 389 Cab Panels and choose from various sleeper panel options like the 11 Inch Drop, 6 Inch Drop, and 9 Inch Drop. Our one-piece 6" and 8" fiberglass cab/cowl panels for Peterbilt 379/389 offer seamless integration and superior performance. Discover the Fibertech Full Wrap Sleeper Panel available in 3 sizes, or opt for the 8 Inch Sleeper Panels in 4 sizes for a custom fit. We also offer 6 Inch Fiberglass Sleeper Panels in 4 sizes and the Peterbilt Unibilt Sleeper Extender for added versatility. For a complete transformation, consider our Fiberglass Full Wrap with 6" or 8" Tall Sleeper Panels, or the 70" Sleeper Panels with Extension. Specific models like the 67" Length x 6" Width Fiberglass Cab/Cowl Panels for Peterbilt 389 Extended 131 BBC with Diesel Particulate Filter, and the 54" Length x 8" Width Fiberglass Cab/Cowl Panels for Peterbilt 389, ensure a perfect fit for your truck. Elevate your semi-truck's appearance and functionality with our top-quality fiberglass panels, engineered for Peterbilt 379 and 389 models. Whether you're looking to enhance your classic cab, upgrade your door panels, or add stylish cab lights, our products are designed to meet your needs. Perfect for day cab setups and even compatible with Kenworth cabover models, our custom Peterbilt 379 solutions are second to none. Take action now and transform your truck with our premium fiberglass panels!