This is a A-HXE38943 Pulley, Cutterbar Drive / Backshaft PN: HXE38943Main Description As Following : A-HXE38943 Pulley, Cutterbar Drive / Backshaft PN: HXE38943 Found in Section & Models : Headers/Platforms/Feeder House > Grain Head Parts, John Deere HEAD, CUTTING PLATFORM: 615F, John Deere HEAD, CUTTING PLATFORM: 615R, John Deere HEAD, CUTTING PLATFORM: 618F, John Deere HEAD, CUTTING PLATFORM: 618R, John Deere HEAD, CUTTING PLATFORM: 620F, John Deere HEAD, CUTTING PLATFORM: 620R, John Deere HEAD, CUTTING PLATFORM: 625F, John Deere HEAD, CUTTING PLATFORM: 625R, John Deere HEAD, CUTTING PLATFORM: 630F, John Deere HEAD, CUTTING PLATFORM: 630R Associated Items : New Also This is An Aftermarket Product And : Bore: 1.128" Diameter: 10.390" Replaces: AH201561 Width: Groove: .748"