Select page: PICT-050.1 50 Power Train ST554860 Differential Lock Pedal and Linkage ST554864 Drive ST554867 Gear Case (040001 - ) ST588518 Transaxle Case ST588519 Axle With Differential ST588520 Hydrostatic Transmission (Sauer-Sundstrand BDU-21L-300) ST588522 PTO Clutch ST588523 Gear Case ( - 040000) ST811499 PTO Gear Case Other parts group: 20 Engine AM128210 30 Fuel And Air 40 Electrical 50 Power Train 60 Steering, Brakes And Control Linkages 70 Hydraulics 80 Frame, Wheels And Sheet Metal 85 Operator's Station And Miscellaneous 90 Mower Deck and Lift Linkage, 54 inch 91 Mower Deck, 48 inch 95 Labels