Nachi Hydraulic Pump PVK‑3B‑725 for Hitachi ZX65 Excavator

Nachi Hydraulic Pump PVK‑3B‑725 for Hitachi ZX65 Excavator

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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Product details

Genuine Original Nachi Hydraulic Pump PVK‑3B‑725 for Hitachi ZX65 Excavator

Product Overview

This is genuine original Nachi hydraulic pump PVK‑3B‑725, a high‑quality Hydraulic piston pump designed for Hitachi ZX65 excavator. As the core power source of the hydraulic system, this unit delivers high‑pressure hydraulic oil to drive all working actions of the Machine. It is manufactured to original factory standards, with precise internal matching and reliable performance. Damaged or worn‑out main pump will cause weak digging force, slow movement, high oil temperature, abnormal noise and power loss of the Machine. This genuine original component is ideal for complete equipment overhaul and replacement of the hydraulic system.

Technical Specifications

- Part Number: PVK‑3B‑725

- Brand: Nachi (Genuine Original)

- Applicable Machine: Hitachi ZX65 Excavator

- Product Type: Hydraulic piston pump, main hydraulic pump

- Working Medium: Anti‑wear hydraulic oil

- Working Pressure: Meet OEM original specification

- Installation: Direct bolt‑on mounting, no extra modification required

- Internal Assembly: Piston set, valve plate, drive shaft, swash plate and sealing parts

- Function: Supply high‑pressure oil for the whole hydraulic system of the Machine

Working Principle

As the heart of the hydraulic system, this Hydraulic piston pump converts mechanical energy from engine into hydraulic energy. Driven by engine power, the internal piston assembly reciprocates to absorb and discharge high‑pressure hydraulic oil. The variable‑displacement structure adjusts output flow according to real‑time load of the Machine. Pressurized oil is transmitted through pipelines to hydraulic cylinders and motors, realizing digging, slewing and traveling movements of the excavator. Stable performance of this hydraulic pump guarantees smooth and responsive operation of the entire hydraulic system.

Core Advantages

1. Genuine original Nachi product, strictly comply with OEM dimensional and performance standards for direct installation on Hitachi ZX65 Machine.

2. Precision‑matched internal friction pairs of this Hydraulic piston pump, low internal leakage and stable pressure output under continuous working load.

3. High‑quality raw material and factory assembly, good wear‑resistance, long service life for heavy‑duty construction operation.

4. Effectively solve common failures: insufficient digging power, slow action, high hydraulic oil temperature, abnormal pump noise.

5. Perfect compatibility with original hydraulic system, convenient for disassembly and field maintenance of the Machine.

Application Scope

This genuine original Nachi hydraulic pump PVK‑3B‑725 is specially applied to Hitachi ZX65 mini‑excavator. Widely used in municipal construction, earth‑moving, garden engineering and other construction‑site maintenance projects. It serves as the key power component to restore full working performance of the hydraulic system for the Machine.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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4 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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