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Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750
Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750
Specifications
Price :
$800 - $1100
Warranty Time :
Six Month
Place of Origin :
China
Part name :
Hydraulic Main Pump
Compatible Engine :
K3V280SH
Condition :
100%new
Brand Name :
Hitachi
Rated speed :
1800–2000 rpm (excavator application)
Type :
Hydraulic Pump
Supply Ability :
99
Compatible Model :
EX650 EX700 EX750 EX800 EX870 EX1100 EX1200-3
Delivery Time :
3-7 work days
Packaging Details :
Wooden Box
MOQ :
1
Pressure :
High Pressure
Packing :
wooden box
Model Number :
K3V280SH
Payment Terms :
L/C,D/A,D/P,T/T
Description

Excavator Hydraulic Pump Assembly K3V280SH for Hitachi EX650 EX700 EX750

Restore the full hydraulic power of your large Hitachi excavator with this high-performance K3V280SH main pump assembly. Designed for heavy-duty models including EX650, EX700, EX750, EX800, EX870, EX1100, and EX1200-3, this pump delivers the high pressure and flow required for demanding earthmoving, mining, and quarry applications. Built to OEM specifications, it ensures reliable, consistent performance and extended service life in the harshest operating conditions.

Core Selling Points

✅ Precision OEM Fit for Hitachi Large Excavators
This K3V280SH pump is manufactured to the exact specifications of the original Hitachi unit, ensuring seamless installation with no modifications required. It is fully compatible with the hydraulic systems of all listed excavator models, restoring full power and functionality.
✅ Heavy-Duty Construction for Extreme Conditions
Built with high-grade cast iron housings and precision-machined internal components, this pump is designed to withstand the high pressures and continuous operation of mining and large-scale construction work. The robust design minimizes wear, leaks, and downtime.
✅ Optimized Hydraulic Performance
The twin variable displacement pump design delivers precise flow control, ensuring smooth, responsive operation of all excavator functions including boom, arm, bucket, swing, and travel. This improves work efficiency and reduces operator fatigue during long shifts.
✅ Cost-Effective Fleet Maintenance Solution
Replacing a worn main pump with this high-quality aftermarket unit eliminates the risk of performance loss and hydraulic system damage. It offers a reliable, budget-friendly alternative to expensive OEM parts, helping you keep your Hitachi excavators running at peak efficiency.

Item Specification
Model K3V280SH (Tandem Variable Displacement Axial Piston Pump)
Configuration Dual swash plate axial piston pump (double pump assembly)
Displacement per pump 280 cm³/rev (cc/rev)
Total displacement 560 cm³/rev (for double pump)
Rated pressure 34.3 MPa (343 bar)
Maximum pressure 39.2 MPa (392 bar)
Rated speed 1800–2000 rpm (excavator application)
Maximum self-priming speed 2,360 rpm
Flow rate (at 1800 rpm) ~1008 L/min (total, theoretical)
Control type Load sensing + negative flow control (excavator system)
Drive shaft spline SAE standard or excavator-specific spline
Mounting flange Excavator engine flywheel housing compatible
Approximate weight ~300–350 kg
Compatible excavators Hitachi EX650 EX700 EX750 EX800 EX870 EX1100 EX1200-3
, Sumitomo SH800, etc.

Part Number Type Description & Compatibility
K3V280SH Base Model Number Official Kawasaki pump model designation for the EX-series main pump
K3V280SH100R-0E02 Kawasaki OEM Full factory part number for the standard EX-series configuration
K3V280SH100R-0E02-VD Kawasaki OEM Version with electronic proportional control valve (EX1200-3 specific)
4644567 Hitachi OEM Factory-original pump assembly for EX700/EX800
4644568 Hitachi OEM Updated service replacement version for EX750/EX870
4644569 Hitachi OEM EX1100/EX1200-3 specific pump assembly
9170546 Hitachi OEM EX650 early production version pump assembly
K3V280SH Aftermarket Format Common listing format for aftermarket pumps (no suffix)
4644567R Remanufactured Hitachi remanufactured pump assembly part number

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

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Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

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Product Detail
Price :
$800 - $1100
Warranty Time :
Six Month
Place of Origin :
China
Part name :
Hydraulic Main Pump
Compatible Engine :
K3V280SH
Condition :
100%new
Contact Supplier
Excavator Hydraulic Pump Assembly K3V280SH For Hitachi EX650 EX700 EX750

Guangzhou Lanxin Machinery Equipment Co., Ltd

Verified Supplier
1 Years
guangzhou
Since 2008
Business Type :
Distributor/Wholesaler, Trading Company
Main Products :
Construction Engine, Excavator Engine Parts, Hydraulic Pump Assembly
Total Annual :
10000000￥-100000000￥
Employee Number :
50~150
Certification Level :
Verified Supplier
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