I have found some information pertaining to seal kits for the PTO hydraulic motor (D90094) on a 1989 Case 480E ll. Actually it is a Char-Lynn 109-1027-004, and the shaft end seal kit is part# 61236-000 which includes the shaft seal, dust seal and face gasket, the rear end seal kit is 61234-000. The unit is a Char-Lynn 109 4000 series pump which is no longer being manufactured.
Thanks,
Bob