Peterbilt 386 Fuel Tank Caps offer a comprehensive selection of high-quality replacement fuel and DEF caps for Peterbilt trucks. This product lineup includes a wide range of non-vented, lever-style, locking, and pressure-relief caps to meet the diverse needs of Peterbilt owners. Whether you're looking for a direct OEM replacement, a more secure locking cap, or an anti-siphon solution, this product lineup has you covered. The products feature durable construction, secure sealing, and corrosion-resistant finishes to ensure a reliable and long-lasting fuel system. Enhance the performance and protection of your Peterbilt 386 with the top-notch fuel tank caps in this product lineup.