A10VSO100DFLR/31R-PSC61N00 REXROTH REPLACEMENT, PISTON PUMP, 6.10 IN3 DISPLACEMENT, CLOCKWISE ROTATION, 1-1/2"-17 SPLINED SHAFT, SAE 'C' 2-BOLT MOUNTING FLANGE, REAR PORTS, -40 CODE 61 SUCTION FLANGE, -20 CODE 62 PRESSURE FLANGE, (2) #12 O-RING CASE DRAIN PORTS, DFLR PRESSURE, FLOW & TORQUE CONTROL DEVICE, #4 SAE CONTROL DEVICE PORT, 4000 PSI CONTINUOUS OPERATING PRESSURE, 5100 PSI PEAK, 52.8 GPM MAXIMUM, 100% FACTORY TESTED, A10VS0100DFLR/31R-PSC61N00.