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Excavator Hitachi EX2500-5 EX2500-6 EX5500-5 EX5500-6 EX2600-5 EX2600-6 EX5600-5 EX5600-6 Hydraulic Main Piston Pump 4455484 4455485 4347142 4449718 4424246

Excavator Hitachi EX2500-5 EX2500-6 EX5500-5 EX5500-6 EX2600-5 EX2600-6 EX5600-5 EX5600-6 Hydraulic Main Piston Pump 4455484 4455485 4347142 4449718 4424246

4455484 main piston pump

Excavator Hitachi EX2500-5 piston pump

Hitachi hydraulic pump for EX2500-5

Place of Origin:

China

Brand Name:

CAVOYD

Model Number:

EX2500-5 EX2500-6 EX5500-5 EX5500-6 EX2600-5 EX2600-6 EX5600-5 EX5600-6

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Excavator Hitachi EX2500-5 EX2500-6 EX5500-5 EX5500-6 EX2600-5 EX2600-6 EX5600-5 EX5600-6 Hydraulic Main Piston Pump 4455484 4455485 4347142 4449718 4424246 Excavator Hitachi EX2500-5 EX2500-6 EX5500-5 EX5500-6 EX2600-5 EX2600-6 EX5600-5 EX5600-6 Hydraulic Main Piston Pump 4455484 4455485 4347142 4449718 4424246 Excavator Hitachi EX2500-5 EX2500-6 EX5500-5 EX5500-6 EX2600-5 EX2600-6 EX5600-5 EX5600-6 Hydraulic Main Piston Pump 4455484 4455485 4347142 4449718 4424246 Excavator Hitachi EX2500-5 EX2500-6 EX5500-5 EX5500-6 EX2600-5 EX2600-6 EX5600-5 EX5600-6 Hydraulic Main Piston Pump 4455484 4455485 4347142 4449718 4424246 Excavator Hitachi EX2500-5 EX2500-6 EX5500-5 EX5500-6 EX2600-5 EX2600-6 EX5600-5 EX5600-6 Hydraulic Main Piston Pump 4455484 4455485 4347142 4449718 4424246
Product Details
Payment Terms:
Western Union, T/T, Assurance
Packaging Details:
Wooden Case / Cartonwith Foam Protection, Or As Required
Supply Ability:
300 Sets / Month
Price:
Negotiable
Part No:
4455484 4455485 4347142 4449718 4424246 YA00003083 YA00003084
Transportation Method:
DHL, UPS, FedEx, Sea Freight
Warranty:
6 Months
Product Name:
Hydraulic Pump Assembly
Condition:
New / Rebuilt
MOQ:
1 Set
Delivery Time:
3-8 Working Days
Highlight:

4455484 main piston pump

,

Excavator Hitachi EX2500-5 piston pump

,

Hitachi hydraulic pump for EX2500-5

Payment & Shipping Terms
Minimum Order Quantity
1 set
Price
Negotiable
Packaging Details
Dimension: L100×W50×H50 cm
Delivery Time
3-8 days
Payment Terms
T/T
Supply Ability
300pcs/day
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CONTACT US
86--18127821703
280835749@qq.com
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Product Description
Product Overview

Hydraulic main piston pump assembly engineered for Hitachi EX2500-5, EX2500-6, EX2600-5, EX2600-6, EX5500-5, EX5500-6, EX5600-5, and EX5600-6 mining excavators. This K3V280 pump is a direct replacement for part numbers 4455484, 4455485, 4347142, 4449718, 4424246, YA00003083, and YA00003084, delivering reliable hydraulic performance for continuous heavy-duty mining operations.

K3V280 Hitachi EX Series Mining Excavator OEM Replacement
Key Specifications
Operating Weight 248 t (backhoe) / 249 t (front shovel)
Engine QSK50, rated power 1044 kW (1400 HP), single-engine, Tier 2 emission
Bucket Capacity Up to 15.0 m³ for backhoe; 15.0–16.5 m³ for front shovel
Hydraulic System Hitachi OHS optimized hydraulic system with 6 variable axial piston main pumps
Main Pumps 4 pumps for front attachment & travel, max flow 375 L/min each
2 swing priority pumps, max flow 425 L/min each
Main Relief Pressure 29.4 MPa
Pilot Pump 1 gear pilot pump, pilot pressure 3.9 MPa, flow 108 L/min
Control System Hitachi E-P engine-pump electronic control with load sensing, distributing oil flow reasonably for smooth combined operation
Pump Drive Design Forced lubrication and forced cooling, reliable for 24-hour continuous heavy mining duty
Design Features
  • Heavy box frame and cast steel swing base resist rock impact in demanding mining environments.
  • High-mounted travel motors with fall-rock protection for enhanced durability.
  • Separate hydraulic oil cooling circuit maintains stable oil temperature, extending the service life of pumps, control valves, and motors.
  • Track adjuster with nitrogen accumulator protects tracks from overload damage.
  • OPG Level II falling-object protection cab for operator safety.
  • Large global population — hydraulic pumps, distribution valves, and travel & swing assemblies are high-demand aftermarket reman and replacement parts.
Product Image
HPK055 hydraulic main piston pump assembly for Hitachi ZAX120-3, ZX120-3, and ZX135US-3 excavators, compatible with part numbers 9290597 and 9285566


Tags：

hydraulic piston pump

hydraulic pump for excavator

main hydraulic pump assembly

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Guangzhou Kawo Construction Machinery Co.,Ltd.
With 20 years of professional experience in construction machinery hydraulics, CAVOYD focuses on hydraulic spare parts supply and remanufacturing for excavators, bulldozers and loaders. We mainly supply hydraulic pumps, control valves, swing assemblies, travel assemblies, fan pumps and fan motors. Our parts fit Caterpillar, Komatsu, Volvo, Hitachi, Kobelco, Sany, Doosan and other mainstream brands. We provide high-quality new parts and precision remanufactured parts, serving global clients wit
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