CAT Mini Excavator Replacement Main Piston Pump 307-3063 A10VO60DFR1/52R-VSD46N00 Overhaul Hydraulic Part

A10VO60DFR1 fully duplicates OEM 307-3063 flow channel, 14-tooth spline shaft and DFR1 valve specifications. Precision ground piston assembly plus imported high-pressure FKM oil seals deliver ultra-low internal leakage under long heavy loads.