Dorman 904-124 Fuel Filter Primer Housing Seal Kit

Fuel Filter Primer Housing Seal Kit for GM HD Trucks

Dorman 904-124 is a fuel filter primer housing seal kit for specified Chevrolet Silverado HD and GMC Sierra HD diesel applications. It restores the housing with OE-style replacement components made from rubber and other quality materials for dependable sealing performance.

Key Features

• Standard replacement fuel filter primer housing seal kit
• Rubber seal material for housing sealing service
• Matches the original components and hardware required for repair
• Includes an instruction sheet for service reference
• Fits select Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD applications

Detailed Description

This Dorman fuel filter primer housing seal kit is built for diesel fuel system service on GM heavy-duty trucks. It is engineered to match the original housing components used on the specified vehicles, helping restore proper sealing at the primer housing after wear, leakage, or service-related damage. Part number 904-124 is a practical OE-style repair solution for Silverado and Sierra HD models that use a plastic bleeder screw.

This part cross-references TechSmart F81003 for the same application. It is also associated with OE reference 12642623. Compatible With 2001-2012 Chevrolet Silverado 2500 HD, w/Plastic Bleeder Screw; 2007-2012 Chevrolet Silverado 3500 HD, w/Plastic Bleeder Screw; 2001-2012 GMC Sierra 2500 HD, w/Plastic Bleeder Screw; and 2007-2012 GMC Sierra 3500 HD, w/Plastic Bleeder Screw.

Common Issues This Kit May Address

• Fuel seepage around the primer housing
• Air intrusion at the fuel filter primer assembly
• Hard starting caused by a leaking housing seal
• Bleeder screw or gasket wear during fuel filter service
• Loss of sealing integrity after housing repair

Installation Notes and Tips

Verify the vehicle uses the plastic bleeder screw configuration before ordering. Clean the housing surfaces thoroughly before installing the new rubber gaskets, and follow the included instruction sheet during reassembly. Confirm the part number 904-124 against the original housing design on your Silverado HD or Sierra HD before service.

Quality Assurance

Dorman manufactures this kit as a standard replacement repair part using quality components for reliable performance and durability. It is built to match the original components required for the specified fuel filter primer housing repair.