Dorman 904-059 Fuel Line

Dorman 904-059 Fuel Line for Heavy-Duty Return Service

Dorman 904-059 is a replacement fuel line built to transfer fuel safely in demanding underhood and undercar conditions. It is a standard replacement, heavy-duty rubber fuel line with hose clamp ends and a black finish for service on select Chevrolet and GMC trucks and vans.

Key Features

• Replacement fuel line for fuel return service
• Standard replacement, heavy-duty construction
• Made from CSM, MASCOTA, NBR, and PET materials
• Black finish for a clean OE-style appearance
• 7.5 mm inside diameter, 15 mm outside diameter
• Rated for up to 75 pressure
• Hose clamp connection at both ends
• Not pressure rated for fuel injection

Detailed Description

This Dorman fuel line is engineered for direct replacement use where a durable rubber line is needed to carry fuel return flow. The construction combines CSM, MASCOTA, NBR, and PET materials to help the line withstand heat, vibration, and exposure common in truck and van engine compartments. Dorman 904-059 is a practical choice for restoring a damaged or deteriorated fuel return line on Chevrolet Express 2500, Chevrolet Express 3500, Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Savana 2500, GMC Savana 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 HD applications.

This part cross-references 97321375 for the same application. It is also listed for Chevrolet Silverado 3500 Classic, GMC Sierra 3500 Classic, Chevrolet Silverado 2500 HD Classic, and GMC Sierra 2500 HD Classic coverage in the 2004-2009 model years. The part number 904-059 is useful when searching for a replacement fuel line for these GM truck and van platforms.

What It Helps Fix

• Cracked or leaking fuel return line
• Fuel odor caused by deteriorated rubber line material
• Restricted fuel return flow from damaged tubing
• Corrosion or wear at hose-clamp connection points
• Service issues on aging Chevrolet and GMC fuel delivery systems

Installation Notes and Tips

Verify hose diameter, routing, and connection style before installation. This line uses hose clamp ends on both sides and is not rated for fuel injection pressure, so it should be installed only in the specified return-line application. Confirm vehicle year, make, and model against the listed fitment for Chevrolet Express 2500, Chevrolet Express 3500, Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Savana 2500, GMC Savana 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 HD before service.

Quality Assurance

Dorman replacement parts are built for service use in demanding automotive environments. This fuel line is made to safely transfer fuel and endure tough underhood and undercar conditions, with materials selected for durability in standard replacement applications.