Dorman 904-406 EGR Cooler

Durable Stainless Steel EGR Cooler for Chevrolet and GMC Vans

The Dorman 904-406 Exhaust Gas Recirculation (EGR) Cooler is engineered specifically for Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500 models. Constructed from stainless steel with a silver finish, this EGR cooler is designed to withstand high temperatures and corrosive exhaust gases, ensuring reliable emission control performance.

• Made from corrosion-resistant stainless steel material
• Specific fit for Chevrolet Express 2500/3500 and GMC Savana 2500/3500
• Includes gasket and seal for secure installation
• Flanged design with precise port diameters for optimal flow
• Comes with all necessary hardware: gaskets, hose clamps, bolts, washers, and hose

Product Details and Specifications

The Dorman 904-406 EGR Cooler measures 14.4 inches in overall length, 6.9 inches in width, and 5.5 inches in height. It features a flanged design with an inside port diameter of 2.12 inches on one end and an outlet inside diameter of 1.96 by 1.36 inches. This specific fitment ensures compatibility with the exhaust gas recirculation system of Chevrolet Express and GMC Savana vans, maintaining proper cooling of exhaust gases before they re-enter the engine. The package includes one EGR cooler, four gaskets, three hose clamps, eight bolts, one hose, and two washers to facilitate a complete installation.

Purpose and Common Issues Addressed

• Helps reduce nitrogen oxide (NOx) emissions by cooling exhaust gases
• Prevents engine overheating caused by excessive exhaust gas temperatures
• Addresses EGR system failures related to clogged or damaged coolers
• Improves engine efficiency by maintaining proper EGR function
• Reduces risk of engine knocking and rough idling due to faulty EGR cooling

Installation Notes and Tips

Installation of the Dorman 904-406 EGR Cooler requires removal of the old cooler and careful alignment of the flanged ports. Use the included gaskets and seals to ensure a leak-free connection. Tighten bolts and hose clamps to manufacturer torque specifications to avoid exhaust leaks. It is recommended to inspect related EGR components during installation for wear or damage. Professional installation is advised for optimal results and to maintain vehicle emission compliance.

Quality Assurance and Warranty

Dorman manufactures this EGR cooler with durable stainless steel to meet OEM standards for emission control components. While this part is not California Air Resources Board (CARB) certified, it is designed to provide reliable performance for the specified Chevrolet and GMC models. The product comes with a limited warranty covering defects in material and workmanship, ensuring confidence in its durability and fitment.