A10VSO45DFLR/31R-PSC61N00 REXROTH REPLACEMENT, PISTON PUMP, 2.75 IN3 DISPLACEMENT, CLOCKWISE ROTATION, 1"-15 SPLINED SHAFT, SAE 'B' 2-BOLT MOUNTING FLANGE, REAR PORTS, -24 CODE 61 SUCTION FLANGE, -16 CODE 61 PRESSURE FLANGE, (2) #10 O-RING CASE DRAIN PORTS, DFLR PRESSURE, FLOW & TORQUE CONTROL DEVICE, #4 SAE CONTROL DEVICE PORT, 4000 PSI CONTINUOUS OPERATING PRESSURE, 5100 PSI PEAK, 30.9 GPM MAXIMUM, 100% FACTORY TESTED, A10VS045DFLR/31R-PSC61N00.