Product Description for Fuel Filler Cap Assembly Upgrade your vehicle's efficiency and reliability with our Fuel Filler Cap Assembly, designed specifically for Cummins engines including N14, L10, M11, ISM, N855, and NT models. Engineered for a perfect fit and long-lasting performance, this filler cap is essential for maintaining optimal fuel system functionality. Discover the key features that make this fuel filler cap an excellent choice: Wide Compatibility: This fuel filler cap is a direct replacement for Cummins N14, L10, M11, ISM, N855, and NT engines. Manufactured according to the original prototype model, it ensures a precise fit and seamless integration with your vehicle's fuel system. OE Number Reference: Designed to replace OE part number 101322, this oil filler cap matches the original specifications for reliable performance. Please verify that the OE number corresponds with the part you are replacing to ensure compatibility. Leak-Proof Design: Featuring a robust seal, this gas filler cap prevents leaks and keeps the cap securely closed. Its design not only ensures safety but also helps improve fuel economy by maintaining the integrity of your fuel system. Durable Construction: Made from high-quality ABS material, the oil filler cap is highly resistant to deformation and built for durability. Its sturdy construction ensures long-lasting performance, even under demanding conditions. Ideal Replacement: With an upgraded design and professional manufacturing, this filler cap serves as a perfect replacement for damaged or worn-out oil caps. Restore your vehicle's fuel system efficiency with ease and confidence. Enhance your vehicle's performance with our Fuel Filler Cap Assembly, crafted for durability and precision. Ideal for those seeking a reliable, high-quality replacement, this cap ensures your engine operates at its best. Experience improved fuel efficiency and system integrity with a product designed for excellence.