This is a A-H108571 Shaft, Fan PN: H108571Main Description As Following : A-H108571 Shaft, Fan P.N: H108571 on 6600 SN <-310500 shaft can be installed but must also replace fan sheaves A-H97600 & A-AH100009.)Dim A (1): 54.750" longReplaces: H97702, H75598 Replaces: H75598 JOHN DEERE COMBINE , H97702 JOHN DEERE COMBINE , Crossed From: AMH108571 , , AV104218 VAPORMATIC , WN-H108571 , , WNH108571 , , 300-D75597 , , 300D75597 , Found in Section & Models : Separator Area > Separator Shafts, Gears, & Parts, John Deere COMBINE: 6600, John Deere COMBINE: 6601, John Deere COMBINE: 6602 HILLSIDE, John Deere COMBINE: 6620, John Deere COMBINE: 6622 Associated Items : A-JD9246 Also A-JD-O-OMH111330, A-JD-O-OMH120048 And : On 6600 SN <-310500 shaft can be installed but must also replace fan sheaves A-H97600 & A-AH100009.) Length: 54.750" Replaces: H97702, H75598