The ugly, expensive, filthy bits that nobody thinks about until the excavator stops making money. Everyone talks about excavator engines. Hydraulic pumps. Tracks. Booms. Even final drives get their moment in the spotlight. But there is another category of excavator parts. The parts nobody wants to talk about. They aren't sexy. They don't make for impressive photographs. Nobody stands around the workshop admiring them. And yet, when one of them fails, your excavator can go fro