Dorman 904-132 EGR Cooler

Durable Stainless Steel EGR Cooler for Chevrolet and GMC Trucks

The Dorman 904-132 Exhaust Gas Recirculation (EGR) Cooler is engineered specifically for heavy-duty Chevrolet and GMC trucks. Designed to meet strict emission standards, this EGR cooler helps maintain optimal engine performance and reduce harmful exhaust gases.

• Constructed from corrosion-resistant stainless steel for long-lasting durability
• Specific fitment for Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD models
• Includes all necessary installation components: 4 gaskets, 3 hose clamps, 6 bolts, and 2 o-rings
• Flanged design with precise port diameters for secure connections
• California Air Resources Board (CARB) certified with Executive Order Number D-740-4
• Natural color finish with overall dimensions of 13.5" length, 6.25" width, and 6.25" height

Product Details and Specifications

The Dorman 904-132 EGR cooler is manufactured from high-grade stainless steel, ensuring resistance to heat and corrosion commonly encountered in exhaust systems. Its flanged design and specific port diameters—0.7" inside diameter on one end and 7" outlet inside diameter—allow for a precise fit and reliable sealing. This part is designed exclusively for select Chevrolet and GMC heavy-duty trucks, including the Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, and Sierra 3500 HD, ensuring compatibility and ease of installation. The package includes essential hardware such as gaskets, hose clamps, bolts, and o-rings to facilitate a complete and secure replacement.

Purpose and Common Applications

• Reduces exhaust gas temperatures to prevent engine overheating
• Helps lower nitrogen oxide (NOx) emissions to comply with environmental regulations
• Prevents EGR valve and cooler clogging caused by soot buildup
• Maintains engine efficiency and performance by ensuring proper exhaust gas recirculation
• Addresses issues related to engine knocking and rough idling caused by faulty EGR cooling

Installation Notes and Tips

When installing the Dorman 904-132 EGR cooler, ensure all included gaskets and seals are properly seated to prevent exhaust leaks. Use the provided bolts and hose clamps to secure connections firmly. It is recommended to inspect the surrounding EGR system components for wear or damage during replacement. Proper torque specifications should be followed to avoid warping or damage to the cooler flange. This part is designed for direct replacement on compatible Chevrolet Silverado and GMC Sierra heavy-duty models, simplifying the installation process.

Quality Assurance and Certification

This EGR cooler is CARB certified under Executive Order Number D-740-4, meeting California Air Resources Board standards for emission control components. Manufactured by Dorman, a recognized supplier of automotive replacement parts, the 904-132 model is built to meet or exceed OEM specifications. The product includes a warranty that covers defects in materials and workmanship, providing confidence in its reliability and performance for heavy-duty truck applications.