This is a A-N102024 Countershaft PN: N102024Main Description As Following : A-N102024 Countershaft P.N: N102024 Diameter: .872" HexLength: 7.870" Crossed From: AV104797 VAPORMATIC Found in Section & Models : Headers/Platforms/Feeder House > Corn Head Parts, John Deere HEAD, CORN: 1243, John Deere HEAD, CORN: 1290, John Deere HEAD, CORN: 1291, John Deere HEAD, CORN: 1293, John Deere HEAD, CORN: 243, John Deere HEAD, CORN: 244, John Deere HEAD, CORN: 343, John Deere HEAD, CORN: 344, John Deere HEAD, CORN: 40 SERIES, John Deere HEAD, CORN: 443, John Deere HEAD, CORN: 444, John Deere HEAD, CORN: 493, John Deere HEAD, CORN: 494, John Deere HEAD, CORN: 543, John Deere HEAD, CORN: 546, John Deere HEAD, CORN: 594, John Deere HEAD, CORN: 642, John Deere HEAD, CORN: 643, John Deere HEAD, CORN: 644, John Deere HEAD, CORN: 645 Associated Items : New Also This is An Aftermarket Product And : Diameter: .872" Hex Length: 7.870"