This is a A-JD9900 Needle Bearing PN: JD9900Main Description As Following : A-JD9900 Needle Bearing P.N: JD9900 Inside Diameter: 1.25"Outside Diameter: 1.625"Replaces: 576539R91Width: 1.25" Replaces: A-576539R1 CASE/INTERNATIONAL HAR. , Crossed From: AV104736 VAPORMATIC , JD9900-N , , SH0900 SHOUP , WN-576539R1 , Found in Section & Models : Headers/Platforms/Feeder House > Corn Head Parts, John Deere HEAD, CORN: 1092, 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: 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 : Inside Diameter: 1.25" Outside Diameter: 1.625" Replaces: 576539R91 Width: 1.25"