Excavator Hydraulic Main Pump Assembly For PC3000-6 4000-6 Part NO. 708-2K-00014 708-2K-00330 708-2k-00024

Hydraulic main pump assembly designed for Komatsu PC3000-6 and PC4000-6 mining excavators. Built as a variable-displacement axial piston pump with integrated regulator valve group, it supplies high-pressure flow to the implement and travel circuits under the machine's open-circuit, electronically managed hydraulic system. The assembly is supplied complete and ready for installation after connecting suction, pressure and case-drain lines.

• Variable-displacement axial piston main pump for large mining-class excavators.
• Complete assembly with regulator valve group — bolt-on replacement, no fabrication.
• Flange-mounted, engine-driven design with spline coupling.
• Suitable for Komatsu PC3000-6 / PC4000-6 / PC4000-6E (verify by SN).
• [Remanufactured option:] worn pistons, cylinder block, valve plate and seals serviced as applicable; bench pressure/flow tested.
• Oil-sealed, anti-rust, export-packed in plywood case with impact protection.
• Nameplate photo, test report and inspection video available on request.

The models and part numbers below are cross-reference data collected from the parts market for buyer matching. They are not a guarantee of direct fitment. Final compatibility depends on the exact part number and suffix on the pump nameplate, the regulator type (hydraulic vs. electronic), the flange bolt pattern, and the spline.

• ① Nameplate photo — clearly showing the part number and suffix.
• ② Old pump part number — as marked on the original unit.
• ③ Photos of the old pump — side view and mounting flange view.

We will confirm the matching part before shipping.