An agricultural harvester, comprising: a chassis; a threshing and separating mechanism carried by said chassis; a feeder housing carried by said chassis and configured to supply crop material to said threshing and separating mechanism; and a header carried by said chassis in front of said feeder housing, said header including a cutting mechanism configured to cut crop material and an infeed assembly carried behind said cutting mechanism configured to direct the cut crop material toward said feeder housing, said infeed assembly including a driving element configured to rotate; a hollow tube rotationally coupled to said driving element and having a plurality of openings formed therein; at least one finger unit rotatably held within said hollow tube and characterized in that each finger unit includes: a finger hub having a circular cross-section and at least one pivoting aperture and at least one driving aperture formed on a circumferential surface of said finger hub; a pivoting finger pivotally held within said at least one pivoting aperture and configured to at least partially extend out of one of said plurality of openings of said hollow tube during rotation; and a driving finger fixedly held within said at least one driving aperture and configured to at least partially extend into one of said plurality of openings of said hollow tube to rotate said finger unit by said hollow tube. a chassis; a threshing and separating mechanism carried by said chassis; a feeder housing carried by said chassis and configured to supply crop material to said threshing and separating mechanism; and a header carried by said chassis in front of said feeder housing, said header including a cutting mechanism configured to cut crop material and an infeed assembly carried behind said cutting mechanism configured to direct the cut crop material toward said feeder housing, said infeed assembly including a driving element configured to rotate; a hollow tube rotationally coupled to said driving element and having a plurality of openings formed therein; at least one finger unit rotatably held within said hollow tube and characterized in that each finger unit includes: a finger hub having a circular cross-section and at least one pivoting aperture and at least one driving aperture formed on a circumferential surface of said finger hub; a pivoting finger pivotally held within said at least one pivoting aperture and configured to at least partially extend out of one of said plurality of openings of said hollow tube during rotation; and a driving finger fixedly held within said at least one driving aperture and configured to at least partially extend into one of said plurality of openings of said hollow tube to rotate said finger unit by said hollow tube. a finger hub having a circular cross-section and at least one pivoting aperture and at least one driving aperture formed on a circumferential surface of said finger hub; a pivoting finger pivotally held within said at least one pivoting aperture and configured to at least partially extend out of one of said plurality of openings of said hollow tube during rotation; and a driving finger fixedly held within said at least one driving aperture and configured to at least partially extend into one of said plurality of openings of said hollow tube to rotate said finger unit by said hollow tube.