385 2664 Engine Wiring Harness Fix For Excavators

In this video, our team walks you through the 385-2664 engine wiring harness for Caterpillar excavators, showing how it performs in common repair scenarios. You'll see a close-up comparison with the original harness, a step-by-step installation demonstration on C11 and C13 engines, and real footage of how the yellow braided sleeve and waterproof connectors hold up against oil, vibration, and heat. We also test signal stability and explain how this direct replacement resolves wire aging, short circuits, and poor contact issues on 345C, 345D, and 349D models.