This hydraulic main piston pump assembly is designed for the Komatsu PC40MR-2 excavator. It serves as a core component in the machine's hydraulic system, converting mechanical power into hydraulic flow to drive cylinders, motors, and other attachments. The part number 708-1S-11212 (also written 7081S11212) ensures compatibility with the specified model.
Supplied by Hangzhou XC Machinery Co., Ltd., this pump is offered in genuine new condition. It is a direct replacement for the original unit, helping to restore proper hydraulic function after wear or failure. The assembly is suitable for construction machinery hydraulic repair and maintenance projects.
This pump assembly is intended for the Komatsu PC40MR-2 mini excavator. It fits directly into the hydraulic circuit and works with the machine's existing controls and lines. When replacing a worn or damaged pump, using the correct part number helps avoid fitment issues and maintains system performance.
Typical signs that a hydraulic main pump may need replacement include reduced digging force, slow cycle times, unusual noise, overheating, or fluid leaks. This assembly provides a reliable solution for such repairs.
Hangzhou XC Machinery Co., Ltd. supplies genuine and aftermarket excavator hydraulic pumps for major brands, including Komatsu, Hitachi, Caterpillar, Kobelco, Doosan, Volvo, Hyundai, Kato, and others. Our pump offerings include brands such as Kawasaki, Rexroth, and PVD.
We serve the construction machinery aftermarket with a focus on hydraulic repair parts. The table below lists common machine models we support.
| Brand | Model Examples |
|---|---|
| Komatsu | PC60, PC100, PC120, PC200, PC220, PC270, PC300, PC350, PC4 |
| Hitachi | EX60, EX70, EX120, EX200-1-3-5, ZX200, EX215, EX300, EX450 |
| Caterpillar | E70, E120, E200, E225, E300, E322, E325, E330 |
| Sumitomo | SH60, SH75, SH100, SH120, SH200, SH250, SH300, SH430 |
| Kobelco | SK60, SK100, SK200, SK300, SK330, SK400 |
| Doosan | DH55, DH220, DH300 |
| Volvo | EC210, EC300, EC360 |
| Hyundai | R60, R130, R200, R210, R290 |
| Kato | HD400, HD700, HD770, HD820 |
For inquiries about this Komatsu PC40MR-2 hydraulic main piston pump assembly (708-1S-11212 / 7081S11212) or other hydraulic spare parts, please reach out:
We welcome inquiries for excavator hydraulic pumps and repair parts. Our team can assist with identifying the correct component for your machine model.
The Komatsu PC40MR-2 Excavator Hydraulic Main Piston Pump Assembly (part numbers 708-1S-11212 and 7081S11212) is a genuine new hydraulic pump designed for the Komatsu PC40MR-2 mini excavator. It functions as the core component that converts mechanical power into hydraulic flow to drive cylinders, motors, and attachments. This assembly is a direct replacement for the original unit, ensuring compatibility and restoring proper hydraulic function. It is intended for construction machinery hydraulic repair and maintenance.
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