Dorman 904-333 EGR Cooler

Dorman 904-333 EGR Cooler for Ram Diesel Applications

Dorman 904-333 is a specific-fit exhaust gas recirculation (EGR) cooler for select Ram heavy-duty trucks. It updates the original cooler design with spiral tubes that improve exhaust-gas cooling efficiency while helping reduce clogging in the EGR system.

Compatible With 2009-2012 Ram 2500 and Ram 3500 diesel applications, this stainless steel EGR cooler is CARB certified and built for direct replacement use on the listed vehicles.

Key Features

• Specific-fit EGR cooler for select Ram 2500 and Ram 3500 models
• Stainless steel construction with a natural finish
• Spiral tube design helps reduce clogging compared with the original fin-style cooler
• Flanged design with included gasket and seal components
• CARB certified, Executive Order D-740-2
• Part number 904-333 for easy identification

Detailed Description

This Dorman OE FIX EGR cooler is engineered for 2009-2012 Ram 2500 and Ram 3500 trucks, including 2009 models built from engine serial number 57879029 and later. The cooler uses a revised internal tube layout to support efficient exhaust-gas cooling while addressing a common clogging issue associated with the original equipment fin design. The result is a direct-fit replacement that follows the vehicle-specific mounting and connection points of the factory unit.

Part number 904-333 is built from stainless steel and includes the necessary sealing components listed in the package contents. It is a CARB-certified emission control component, making it a suitable choice for regulated diesel applications where the original cooler has failed or become restricted. This part cross-references Cardone Reman 4E-3001 for the same application.

What It Helps Fix

• EGR cooler clogging from soot and exhaust deposits
• Reduced exhaust-gas cooling performance
• Check engine lights related to EGR cooler restriction or failure
• Exhaust gas recirculation flow issues on Ram 2500 and Ram 3500 diesel trucks
• Replacement needs after cooler leakage or internal blockage

Installation Notes and Tips

Verify engine serial number coverage for 2009 Ram 2500 and Ram 3500 trucks before ordering. Confirm all flange surfaces are clean and inspect adjoining EGR components for carbon buildup, leaks, or damage before installation. Use the included gaskets and seals during assembly, and follow factory service procedures for torque sequence and coolant system refill.

Quality Assurance

Dorman designs this OE FIX cooler as a revised replacement for the original fin-style unit, using a spiral-tube internal design to improve durability in the application. It is CARB certified under Executive Order D-740-2 and built to match the listed Ram diesel fitment.