708-7S-00241 21W-26-00120 Komatsu PC78US-6 PC78UU-6 PC78MR-6 Excavator Hydraulic

Product Specification

708-7S-00241 21W-26-00120 Komatsu PC78US-6 PC78UU-6 PC78MR-6 Excavator Hydraulic Pump Main Pump Assembly

Product Description

The hydraulic pump assembly of GVO brand for the main pump of the Komatsu PC78US-6 excavator is compatible with the PC78US-6 model hydraulic pump components. It features high-quality performance.

The products are directly supplied from the manufacturer without any middlemen adding extra prices. The cost performance is far superior to similar products. There is an ample stock of goods in stock, and once you place an order, the order will be quickly processed and dispatched. There is no need for long waiting periods.

The entire machine undergoes strict pressure testing upon leaving the factory, ensuring stable quality. At the same time, we provide comprehensive after-sales warranty, and the technical team will follow up throughout the process. Maintenance inquiries can be responded to at any time.

Product Description

This is a dedicated integrated main hydraulic pump assembly for the Komatsu PC78US-6 mini excavator. The main pump and pilot pump are integrated into one unit. The flange mounting plate, port layout, and electrical control plug replicate the original factory specifications, requiring no modification and directly replacing the original pump body. It is compatible with the Komatsu PC78US-6 7-ton tailgate excavator, integrating the main pump and pilot pump.

1. Employs a variable displacement piston load sensing control system, which can match the engine output power in real time, effectively reducing stalling during heavy-duty excavation, minimizing hydraulic overflow losses, and balancing strong digging force with fuel economy.

2. The internal pistons and distribution plate undergo alloy wear-resistant heat treatment, resisting impurities in the hydraulic oil used on construction sites, suitable for earthmoving, breaking, and high-frequency operations in confined indoor spaces.

3. The entire machine integrates a power regulator, solenoid valves, and pilot/auxiliary pumps. It undergoes full bench testing for pressure, flow, and combined actions before leaving the factory, ensuring smooth and seamless synchronous operation of lifting, traveling, and swinging.

4. A complete set of high and low temperature resistant sealing components, which are not prone to oil leakage or internal leakage during long-term high-temperature operation, and solve the problems of weak pump, slow operation, abnormal noise and oil leakage of the original vehicle in one stop.

Packaging And Transportation

Company Introduction

The GVO brand is a professional manufacturer of hydraulic components. Its product line is comprehensive, mainly including pilot pumps, gear pumps, relief valves and safety valves, piston hydraulic pumps, various electrical components and hydraulic accessories. It also supplies engine assemblies, traveling assemblies, rotating assemblies, distribution valves and other complete vehicle components of excavators.

We adhere to the factory direct supply model, eliminating all middleman links and without any layer-by-layer price hikes. As a source manufacturer, we strictly control every production process and adhere to the quality bottom line. We will never damage the brand reputation for short-term interests. While ensuring first-class quality, we offer customers highly competitive factory prices, sufficient in-stock, stable and efficient delivery.

We treat every partner sincerely and build a full-process service system: providing model matching and working condition selection technical support before sales; following up on order progress during sales to ensure on-time delivery; responding quickly to fault inquiries and quality assurance services after sales. All problems will be handled efficiently and properly. If you have any needs, we are always on standby and dedicated to protecting you.