LLY Duramax EGR Cooler 2004.5-2005 - Dorman

Overview

This is an EGR system service component (OEM-style direct replacement) for the Chevrolet, GMC LLY Duramax diesel (2004.5-2005). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade LLY Duramax repair or service. Every order ships fast and is backed by our support team.

What It Does & How It Helps

The EGR cooler and valve route a metered amount of cooled exhaust back into the intake to lower combustion temperatures and control emissions. When an EGR cooler cracks it dumps coolant into the intake or exhaust — white smoke, coolant loss and overheating — and a stuck valve sets flow codes. A correct OEM-style replacement restores proper EGR function and a sealed cooling system so the truck runs right and passes inspection. These are genuine OE-replacement service parts that return the emissions system to proper factory operation.

What's Included

• a replacement EGR cooler, valve or gasket built to restore OE function

Fitment

Fits Chevrolet, GMC trucks equipped with the LLY Duramax diesel engine, 2004.5-2005. Please confirm your engine and year before ordering to ensure correct fitment.

Common Symptoms & When to Use

Consider this LLY Duramax part when you experience:

• coolant loss into the intake or exhaust
• an EGR flow or cooler fault code
• overheating from a failed EGR cooler
• restoring emissions-system function so the truck passes inspection

Specifications

• Engine: LLY Duramax
• Year Range: 2004.5-2005

Quality & Service

Fast shipping on in-stock orders. Free shipping on orders over $70. Backed by Core Diesel Parts — your source for LLY Duramax diesel parts.