AH220242 Drum, Feederhouse; Narrow, Heavy DutyOne New Aftermarket Replacement Feederhouse Drum (Narrow, Heavy Duty) Fits John Deere Combines This heavy duty narrow feederhouse drum is a direct replacement Fits John Deere (Fits JD) STS and S Series combines. The feederhouse drum is a critical component of the combine's crop intake system, driving the PosiFeed feeder chain that moves harvested crop from the header into the threshing and separation system. The narrow, heavy duty design is engineered