4466797 4345902 Hydraulic pump PVK-2B-505 Hydraulic main pump assembly Piston pump EX55 ZX55 ZX60 Excavator Parts

Product Description

The hydraulic pump assembly of GVO brand for the main pump of the Hitachi ZX50 ZX55 excavator is compatible with the Hitachi ZX50 ZX55 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 model is a Hitachi piston hydraulic main pump, a main pump assembly for 5-ton small excavators. The compatible models include domestic small excavators such as Hitachi ZX55UR, ZX55U, ZX50U, and ZX48UU.

The pump body is made of high-strength ductile iron and is cast as a whole. The valve body has a compact structure, with a built-in power regulating valve core. The flow output is stable and the action response is sensitive. The internal piston and flow distributor have undergone high-precision quenching and grinding, ensuring strong sealing performance. They can withstand high pressure and high temperature, and are unlikely to encounter problems such as internal leakage, insufficient pressure, or sluggish action during long-term operation. Whether for major machine overhauls or for replacing old pumps, it can be directly installed without the need for secondary modification. It perfectly restores the original vehicle's power performance and is an excellent accessory for the maintenance and replacement of mini excavators.

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.