Dorman 904-859 Exhaust Gas Recirculation (EGR) Valve Adapter

Dorman 904-859 EGR Valve Adapter

This Dorman exhaust gas recirculation valve adapter is built to match the fit, function, and performance of the original EGR valve housing. It helps restore proper exhaust gas recirculation into the intake manifold on select Ford Super Duty diesel applications, including 2008-2010 Ford F-250 Super Duty and 2008-2010 Ford F-350 Super Duty.

• Direct replacement EGR valve adapter for select Ford applications
• Matches original housing fit and function
• Includes gasket or seal for installation
• Flange dimensions: 73 mm x 73 mm
• Mounting hole quantity: 12
• Mounting hole diameter: 8 mm
• Pipe not included
• Mounting hardware not included

Detailed Product Information

The Dorman 904-859 is an emission control hardware component designed for vehicles that use an EGR valve adapter at the valve housing interface. By restoring the connection between the EGR valve and intake system, this part supports proper exhaust gas recirculation flow on 2008-2010 Ford F-250 Super Duty and 2008-2010 Ford F-350 Super Duty models. This part cross-references OE numbers 8C3Z9D475B and 8C3Z9D475C for the same application.

What This Part Helps Address

• EGR valve housing leakage
• Damaged or warped adapter flange surfaces
• Faults related to restricted exhaust gas recirculation flow
• Intake manifold recirculation connection issues
• Replacement needs after corrosion or seal failure

Installation Notes and Tips

Verify the flange size, mounting hole count, and mounting hole diameter before installation. This adapter uses a gasket or seal and does not include pipe or mounting hardware. Confirm vehicle application by year and model before ordering for 2008-2010 Ford F-250 Super Duty or 2008-2010 Ford F-350 Super Duty.

Quality Assurance

Dorman designs this EGR valve adapter to match original equipment fit and function for the specified application. The part number is 904-859.