708-1S-00240 708-1S-00950 708-1S-00910 Bulldozer Komatsu D65 D375 D475 Fan Pump Parts
Complete overhaul kit including Cylinder Block, Valve Plate, Piston (Slipper), Retainer Plate, Swashplate, and Seal Kit for Komatsu D65 D375 D475 Fan Pump Parts.
Component Parts List
Cylinder Block (Pump Barrel)
Valve Plate
Piston, Nine-hole (Piston Bore)
Piston Slipper (Copper Slipper)
Swashplate (Cam Plate)
Main Shaft
Bearings (Large & Small)
Complete Repair Kit
Common Faults
Fan not rotating / low speed: Pump wear causing insufficient flow and pressure; blocked suction filter; low oil level.
Unstable / jittery fan speed: Severe pump internal leakage, air in the oil circuit, abnormal control/regulating valve.
Abnormal noise / squealing: Insufficient suction or air ingress (cavitation), worn gears, contaminated oil.
High oil temperature: Severe pump internal leakage, poor system cooling, accelerating wear.