Welcome to PHP Hydraulics website. Here you can find different series of replacement hydraulic piston pumps (motors) parts for after market. If you have any need about hydraulic pump parts, please feel free to contact us, we would like to provide you all what we are manufacturing with the highest quality and the best service.

Replacement Rexroth A4VSO Hydraulic Piston Pump Parts

Model: A4VSO40, A4VSO45, A4VSO56, A4VSO71, A4VSO125, A4VSO180, A4VSO250, A4VSO355, A4VSO500

Most replacement parts as below can be provided:

Rotary Group, Piston Shoes, Ball Guide, Cylinder Block, Valve Plate right/left, Thrust Plate, Drive Shaft, Retainer, Spacer, Disc Spring.




PHP is supplying different kinds of hydraulic pump parts for excavator hydraulic pump remanufacturing or repairing. All parts we manufactured are completely interchangeable with genuine the OEM parts like Caterpillar, Rexroth, Kawasaki no matter about quality or dimensions. If you choose our products, you will low your cost about excavator main pump maintenance. 

Why you need to choose PHP? 

PHP is a very professional about replacement parts for hydraulic pump remanufacturing. Major technicians have more 10 years experience. We can not only supply products to you, but also provide some beneficial and usefull suggestion about pump maintenance. 

How about quality of hydraulic pump parts from PHP? 

We always pay more attention about quality of our hydraulic pump parts from raw material to machining, especially about heat treatment. Stable temperature and enough time heat treatment are strictly controlled by our staffs in workshop. 

What about delivery and service from PHP? 

We offer all customers quick response about all inquiries every time. If we have stock about parts you demand, we will deliver it in 2-3days after payments. If no stock causualy, we will prepare it to in 14-25days, which is very seldom taken place in PHP.