Dorman 904-278 Fuel Injector Line

Durable Fuel Injector Line for Ford F-250 and F-350 Super Duty

The Dorman 904-278 fuel injector line is engineered to provide reliable fuel delivery for Ford F-250 Super Duty and F-350 Super Duty trucks. Constructed from alloy steel with zinc plating, this injector line offers strength and corrosion resistance for demanding engine environments.

• Material: Alloy steel with natural zinc plating for durability
• Length: 4.5 inches for precise fitment
• Inside diameter: 0.12 inches; outside diameter: 0.25 inches
• Fittings: Female inlet and outlet with M14 x 1.5 metric coarse threads
• Maximum pressure rating: 80,000 psi for high-performance fuel delivery
• Includes one injector feed line and one injector O-ring repair kit

Technical Details and Construction

This fuel injector line features a 0.13-inch wall thickness, ensuring structural integrity under high pressure. Both inlet and outlet fittings are made from alloy steel and use metric coarse threads sized M14 x 1.5, designed for secure connections in the fuel injection system. The natural zinc plating provides corrosion resistance, extending the service life of the component in harsh operating conditions.

Compatible Applications and Use Cases

The Dorman 904-278 fuel injector line is compatible with Ford F-250 Super Duty and F-350 Super Duty models, making it suitable for maintenance or repair of the fuel injection system in these trucks. It is designed to address issues such as:

• Fuel leaks caused by worn or damaged injector lines
• Reduced engine performance due to compromised fuel delivery
• Corrosion or rust on existing fuel lines
• Injector line failure under high pressure conditions
• O-ring seal degradation leading to fuel seepage

Installation Notes and Tips

When installing the Dorman 904-278 fuel injector line, ensure all fittings are properly tightened to the specified torque to prevent leaks. Replace O-rings using the included repair kit to maintain a secure seal. Verify compatibility with your specific Ford F-250 or F-350 Super Duty model year before installation. Use appropriate tools for metric coarse thread fittings to avoid damage.

Quality Assurance and Warranty

Dorman manufactures this fuel injector line to meet OEM standards for fit and function. The alloy steel construction and zinc plating contribute to long-term durability. While specific warranty details are not provided, Dorman parts typically come with a limited warranty covering defects in material and workmanship.