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In this guide, you’ll find how the EGR cooler controls combustion temperature, the three failure modes that change repair scope, and the platform-specific checks that matter on the 6.0L Power Stroke and Duramax lineup.
Keep reading to get a generation-by-generation breakdown of EGR cooler failure symptoms, a pressure-testing approach that separates a bad cooler from a bad head gasket, and a clear look at OEM, rebuilt, exchange, and aftermarket options for the replacement itself.
A cracked 6.0 Powerstroke EGR cooler announces itself through coolant symptoms long before the engine loses meaningful power. Catching those signs in the yard or on the lift keeps the damage contained to one part instead of three.
In this guide, you will find failure signs broken down by symptom, a look at how EGR cooler failure cascades into oil cooler and injector damage on the 6.0 Powerstroke, and a clear breakdown of OEM, aftermarket, and upgraded replacement options so you can make the right sourcing call before the truck goes down hard.