
- Direct-Fit Replacement: Engineered as a perfect, direct-fit factory replacement, making installation straightforward and hassle-free.
- Quality Tested: This EGR cooler has been thoroughly tested to ensure it performs as well as, or better than, the original part.
- OE-Equivalent: Replaces GM OE Part #: 97358507, guaranteeing compatibility and a fit that meets or exceeds original equipment specifications.
- Note: Shipping restrictions apply. This product cannot be shipped to California.

If you own a 2006-2007 GM 6.6L Duramax diesel truck, the Dorman 904-121 EGR Cooler Kit is an essential factory replacement part you'll want to have on hand. The EGR cooler is a critical component that helps reduce harmful nitrogen oxide emissions by cooling exhaust gases and recirculating them back into the engine's intake manifold. Over time, your original cooler can fail, leading to a catastrophic internal coolant leak. This leak can cause coolant to seep into the exhaust manifold and damage your engine, resulting in costly repairs. By proactively replacing a failing cooler with the Dorman 904-121, you're not just restoring your truck's emissions system—you're protecting your engine from extensive damage and ensuring its long-term reliability.
Direct-Fit Replacement: Engineered as a perfect, direct-fit factory replacement, making installation straightforward and hassle-free.
Quality Tested: This EGR cooler has been thoroughly tested to ensure it performs as well as, or better than, the original part.
OE-Equivalent: Replaces GM OE Part #: 97358507, guaranteeing compatibility and a fit that meets or exceeds original equipment specification[...]
- Direct-Fit Replacement: Engineered as a perfect, direct-fit factory replacement, making installation straightforward and hassle-free.
- Quality Tested: This EGR cooler has been thoroughly tested to ensure it performs as well as, or better than, the original part.
- OE-Equivalent: Replaces GM OE Part #: 97358507, guaranteeing compatibility and a fit that meets or exceeds original equipment specifications.
- Note: Shipping restrictions apply. This product cannot be shipped to California.