AH173593 Auger, Unloading, Outer, 18.5'One New Aftermarket Replacement Outer Unloading Auger Fits John Deere (Fits JD) Combines This horizontal outer unloading auger is the outer section of the 18. 5 foot unloading auger system on Fits John Deere combines. It transfers grain horizontally from the combine grain tank to the unloading spout, enabling efficient and rapid grain transfer during harvest. The outer section measures 120 inches (10 feet) in length and is part of the 18. 5 foot total