... the Cylinder Block (Barrel), Piston Shoe Assembly, Retainer Plate (Set Plate), Ball Guide, Thrust Plate (Piston Shoe Plate), ... Valve Plate, Swash Plate, Swash Cradle, Drive Shaft, Rotary Group.A4VSO40, A4VSO50, A4VSO56, A4VSO71, A4VSO125, A4VSO18, A4VSO250, ... TOSHIBA,YUCAI, SUMITORNO,KOBELCO, HYUNDAI, DAEWOO, etc.model below of Rotary Group Assy :REXROTH SERIES: A10VSO, A4VSO, A4VG, A11V, ...