Ramp offers to buy: Hydraulic Main Pump for Hitachi ZX650 / ZX670 / ZX870-3

Part Number: 4635645

✅ In stock – order now

Product Description:

High-quality OEM-spec hydraulic main pump designed for Hitachi ZX650, ZX670, and ZX870-3 excavators. Provides stable high pressure, accurate flow distribution, and reliable performance for all major hydraulic circuits including boom, arm, bucket, swing, and travel systems. Suitable for heavy construction, mining, quarrying, and large-scale earthmoving operations. Ideal replacement for worn, weak, or malfunctioning original pumps.

Compatibility (Applications):

Compatible Models:

• Hitachi ZX650

• Hitachi ZX670

• Hitachi ZX870-3

Function: Main hydraulic pump (primary working hydraulic unit)

Application: Heavy excavator hydraulic system

Part Number:

4635645

Fully interchangeable with OEM hydraulic pump configurations for these models.

Cross-reference / Interchange:

Suitable for all ZX650 / ZX670 / ZX870-3 machines that use OEM pump 4635645.

Specifications:

Manufacturer: OEM / Hitachi-approved supplier

Type: Axial piston hydraulic pump

Condition: New

Material: High-strength alloy housing with hardened rotating group

Pressure Rating: OEM-rated high-pressure continuous operation

Includes:

• Pump housing

• Drive shaft

• Piston/rotating group

• Valve plate

• Factory calibration and test report

Packaging: Export-grade wooden crate

Warranty: Manufacturer’s limited warranty

Key Features:

• Strong hydraulic pressure and stable flow

• Designed for continuous heavy-duty operation

• Durable internal components for long service life

• Direct-fit replacement for ZX650 / ZX670 / ZX870-3

• Factory-tested for pressure, flow, and sealing integrity