- Compatibility : This fuel tank filler neck tube is specifically designed for Ford F-450 and F-550 models. Please verify compatibility with your vehicle before purchasing to prevent returns. - OE Numbers : Ensure a perfect fit by cross-referencing your part with the following OE numbers: FN782, 577-306, 4C3Z9034C, 8C3Z9034L, 8C3Z9034LE, 8C3Z9034LF, F81Z9034SA, F81Z9034SB, YC3Z9034LA, 8C2Z9030B, MGC839, FC92031841, FC975, MGC90231842. Double-check to avoid any errors in your order. - Durable Construction : Made from high-strength materials, this fuel tank filler neck tube is built for durability and longevity. It is resistant to wear and can withstand harsh environmental conditions, ensuring reliable performance. - Improved Fuel Efficiency : The design of this filler neck tube optimizes the connection to your fuel tank, promoting efficient fuel supply. This enhancement can lead to better overall vehicle performance, making your driving experience smoother and more enjoyable. - Practical Applications : Ideal for replacing worn or damaged fuel tank filler necks, this product is perfect for vehicle maintenance or upgrades. Whether you're a DIY enthusiast or a professional mechanic, this component ensures a secure and effective fuel delivery system. - Key Attributes : - Function: Fuel tank filler neck tube - Compatibility: Ford F-450, F-550 - Material: High-strength, durable material - Performance: Enhances fuel supply efficiency Ensure your vehicle operates at its best with this reliable fuel tank filler neck tube.