This is a A-AH157219 Sheave Assy, Inner Drive, Separator Fan PN: AH157219Main Description As Following : A-AH157219 Sheave Assy, Inner Drive, Separator Fan P.N: AH157219 Dim A (1): Dia: 10.162" O.D.Dim B (2): Bore Dia: 1.25"Replaces: AH146461 Replaces: AH146461 JOHN DEERE , Crossed From: AMAH157219 , , AV103563 VAPORMATIC , WN-AH157219 , , WNAH157219 , Found in Section & Models : Separator Area > Separator Sprockets and Sheaves, John Deere COMBINE: 9400 (SN: 670101 >), John Deere COMBINE: 9450 (SN: < 690196), John Deere COMBINE: 9550 (SN: < 690669), John Deere COMBINE: 9550SH (SN: < 690701), John Deere COMBINE: 9650 (SN: < 690730), John Deere COMBINE: 9650CTS (SN: < 690464), John Deere COMBINE: 9650STS (SN: < 691595), John Deere COMBINE: 9750STS (SN: < 691222) Associated Items : New Also This is An Aftermarket Product And : Seals not included Bore: 1.25" Outside Diameter: 10.162" Replaces: AH146461