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Keep reading for a clear diagnostic path for Cummins 6.7, Duramax, and heavy-duty fan drive failures, plus how to choose between OEM, rebuilt, and exchange parts. This guide covers thermal and electronically controlled fan clutches, including the specific failure patterns tied to each platform.
Keep reading to get a clear picture of how the fan clutch works, how to recognize failure across different symptoms, how thermal and electronic designs differ, and what to verify before you order a replacement for your specific application.
Since 1988, our team has helped fleet managers diagnose cooling issues and source the exact parts needed to keep trucks on the road.
This guide covers essential diagnostic steps, platform-specific fitment guidance, and a breakdown of replacement options to help you restore your cooling system efficiently.