YNF16869 2037013 Valve R HPV050 Right Valve Plate for Hitachi EX100-5 EX120-5 Hydraulic Pump

The YNF16869 Valve R, replacing OEM 2037013, is the right-side valve plate used in the HPV050 hydraulic pump for Hitachi EX100-5 and EX120-5 excavators. Acting as one of the core components of the pump’s rotating group, this valve plate regulates hydraulic oil flow, ensures proper piston timing, and maintains stable pump pressure. When worn, scratched, or warped, it can cause internal leakage, pressure loss, slow machine response, overheating, and reduced pump efficiency.

Manufactured from high-strength alloy steel, the YNF16869 valve plate undergoes precision CNC machining and surface grinding to achieve optimal flatness, sealing, and oil-channel accuracy. Its durable structure allows reliable operation in long-hour excavation, mining, and heavy-load environments.

This valve plate is widely selected by hydraulic pump rebuilders, aftermarket part suppliers, and excavator service workshops. Replacing the right valve plate restores pump performance, improves hydraulic output, and extends pump service life.