This is a A-AH135613 Sprocket, Feeder House Drive PN: AH135613Main Description As Following : A-AH135613 Sprocket, Feeder House Drive P.N: AH135613 Inside Diameter: 1.254"Outside Diameter: 7.33"Teeth: 29 Crossed From: AV103445 VAPORMATIC Found in Section & Models : Headers/Platforms/Feeder House > Feeder House Parts, John Deere COMBINE: 9500SH (26 TOOTH), John Deere COMBINE: 9510SH (26 TOOTH), John Deere COMBINE: 9550SH (26 TOOTH), John Deere COMBINE: 9560SH (26 TOOTH) Associated Items : New Also This is An Aftermarket Product And : Inside Diameter: 1.254" Outside Diameter: 7.33" Teeth: 29