Peterbilt 357/378 Fuel Tank Caps are an essential component for keeping your Peterbilt truck's fuel system secure and functioning properly. This product lineup features a wide range of high-quality fuel caps, gaskets, and related accessories designed to fit various Peterbilt models, including the popular 357 and 378 models. Whether you need a replacement locking fuel cap, a non-vented lever-style cap, or an anti-siphon system, you'll find a variety of options to choose from. These fuel tank caps not only provide a tight seal to prevent leaks, but many also offer added security features to deter fuel theft. With a focus on durability, ease of use, and a perfect fit, the Peterbilt 357/378 Fuel Tank Caps product lineup ensures you can keep your truck's fuel system in top condition. Enhance the performance and protection of your Peterbilt with these essential fuel tank accessories.