5-1/2-foot transfer auger for external hopper. Use 5-1/2' Auxiliary Auger Kit (p/n 2500007) with the 48-Bushel Hopper Kit (p/n 9660 or 9760) when the hopper is located to the side of the furnace. NOTE: For furnaces with a serial number prior to M16073, the Power Cord (p/n 4177) must be purchased separately.