An agricultural harvester is described, the harvester comprising a processor for receiving a flow of harvested crop and processing the harvested crop, an on-board tank for storing the processed crop, and a loading arrangement for transporting the flow of processed crop from the feeder to the on-board tank. The loading arrangement comprises an auger, the auger comprising a lower section with an inlet for receiving the flow of processed crop and an upper section with an outlet. The auger further comprises a tubular housing and an auger fighting mounted inside the tubular housing for, during use, transporting the flow of processed crop from the lower section to the upper section and outputting the processed crop via the outlet of the upper section. A clearance between the housing and the auger fighting is larger in the lower section of the auger compared to the upper section.
