This is a A-71389851 Auger, Return Elevator, Lower PN: 71389851Main Description As Following : A-71389851 Auger; Return Elevator, Lower P.N: 71389851 Overall Length: 66.188"Shaft Diameter: 1.125" Found in Section & Models : Grain Handling Area > Auger Related Parts, Challenger COMBINE: 660 (SN