Dorman 576-121 Fuel Tank - Rear

Overview of Dorman Fuel Tank 576-121 for Ford Trucks

The Dorman 576-121 fuel tank is designed specifically for Ford F-150, F-250, F-250 HD, and F-350 models. Constructed from durable steel with a protective paint coating, this fuel tank offers reliable fuel storage with an 18.2-gallon capacity to meet your vehicle's needs.

• Material: Steel construction for strength and durability
• Capacity: 18.2 gallons to support extended driving range
• Dimensions: 34.75" length, 27" width, and 7.88" height for precise fitment
• Color: Gray finish with protective paint coating
• Includes lock ring and o-ring for secure sealing
• Compatible with Ford F-150, F-250, F-250 HD, and F-350 models

Detailed Product Description

The Dorman 576-121 fuel tank is engineered to replace the original fuel storage component on select Ford trucks. Its steel construction ensures resistance to impact and corrosion, while the paint coating adds an extra layer of protection against environmental factors. The tank’s dimensions—34.75 inches in length, 27 inches in width, and 7.88 inches in height—are designed to match factory specifications for a seamless installation. This fuel tank comes with a lock ring and o-ring included to maintain a secure and leak-free seal. Note that the sending unit, mounting straps, and filler neck are not included with this part.

Common Applications and Problem Resolution

• Replacement for rusted or damaged fuel tanks on Ford F-150, F-250, F-250 HD, and F-350 trucks
• Fixes fuel leaks caused by corrosion or physical damage
• Restores proper fuel storage capacity and prevents fuel contamination
• Addresses issues related to faulty or compromised fuel tank seals
• Supports reliable fuel delivery system performance

Installation Notes and Tips

When installing the Dorman 576-121 fuel tank, ensure the vehicle is safely supported and the fuel system is depressurized. Use the included lock ring and o-ring to secure the tank properly and prevent leaks. Since mounting straps and sending unit are not included, reuse the original components or acquire replacements separately. Verify all connections and fittings before completing installation to maintain system integrity.

Quality Assurance and Warranty

Dorman fuel tanks are manufactured to meet or exceed OEM standards for fit, form, and function. The 576-121 part number undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.