Dorman 904-155 Fuel Injector Line - Supply

Reliable Fuel Injector Line for Chevrolet and GMC Trucks

The Dorman 904-155 fuel injector line is engineered to provide a durable and precise fuel delivery solution for select Chevrolet and GMC heavy-duty trucks. Constructed from high-quality steel, this fuel injector line ensures consistent performance and long-lasting reliability in demanding engine environments.

• Made from robust steel material with a silver zinc finish for corrosion resistance
• Compatible with Chevrolet Express 2500/3500, GMC Savana 2500/3500, Sierra 2500 HD/3500 HD, and Silverado 2500 HD/3500 HD models
• Length of 4.5 inches with an inside diameter of 0.142 inches and outside diameter of 8 mm
• Features female inlet and outlet fittings with metric coarse threads (M14 x 1.5 inlet, M18 x 1.5 outlet)
• Designed to withstand maximum pressure up to 25,000 psi

Durable Construction and Precise Fitment

The Dorman 904-155 fuel injector line is manufactured from high-grade steel, providing excellent strength and resistance to wear and corrosion. The silver zinc plating enhances durability against harsh under-hood conditions. With a wall thickness of 0.087 inches, this line maintains structural integrity under high fuel pressures up to 25,000 psi. The metric coarse threaded fittings ensure a secure and leak-free connection, designed specifically for the fuel injection systems of Chevrolet and GMC heavy-duty trucks. This part is a direct replacement for the original fuel injector line, offering reliable fuel delivery to maintain engine performance.

Compatible Vehicles and Applications

• Chevrolet Express 2500 and Express 3500
• GMC Savana 2500 and Savana 3500
• GMC Sierra 2500 HD and Sierra 3500 HD
• Chevrolet Silverado 2500 HD and Silverado 3500 HD

This fuel injector line is designed to address common fuel delivery issues such as leaks, fuel pressure loss, and injector line damage caused by corrosion or wear. It is ideal for restoring proper fuel flow and maintaining engine efficiency in the specified heavy-duty truck models.

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid injury
• Verify thread sizes and fitting genders match the vehicle’s fuel system connections
• Use appropriate tools to avoid damaging the steel fittings during installation
• Inspect surrounding fuel lines and components for wear or damage during replacement

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and fitment. The 904-155 fuel injector line undergoes rigorous quality control to maintain durability and safety standards. Please refer to Dorman’s warranty policy for specific coverage details.