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Hitachi K3V280 Hydraulic Main Pump for ZX850-3 ZX650-3 EX1200-6 Excavators

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Hitachi K3V280 Hydraulic Main Pump for ZX850-3 ZX650-3 EX1200-6 Excavators

Hitachi Excavator K3V280 Hydraulic Main Pump
Compatible Models: ZX850-3, ZX650-3, EX1200-6 | Part Numbers: 4635645, 9197075
Product Specifications
ModelZX850-3 ZX650-3 EX1200-6
Part Number4635645 9197075 K3V280
Product NameHitachi Hydraulic Pump Assy
ApplicationExcavator Spare Parts
Part NameHydraulic Pump Assembly
BrandHITACHI
HighlightMain Pump Assembly
Warranty6 months
Detailed Product Information

Category: Hydraulic Pump

Place of Origin: Other Country

Condition: Original & OEM

MOQ: 1 pcs

Production Capacity: 1000pcs/Month

Standard or Nonstandard: Standard

Payment Term: L/C, T/T, Trade Assurance

Delivery Time: 1-3 days (depend on order)

Transport: By Sea, Air or DHL

Guarantee: We will check and send detailed pictures to buyers for confirmation

Component Parts List
ItemPart NumberDescriptionQty
5320800707PISTON; SERVO1
5340682319STOPPER1
5350682320STOPPER1
7024292386O-RING1
7060443413O-RING1
7100682321O-RING1
7170682322O-RING2
7190682323O-RING1
7240443801O-RING10
7254297379O-RING4
7280443408O-RING2
7320682324O-RING1
7740682325SEAL; OIL1
7890682326RING; BACK-UP1
7920682327RING; BACK-UP1
8034366339UNIT (TILTING-PROBING)1
8080451038NUT2
824960323RING; RETAINING1
8850313404PIN1
8874144353PIN; SPRING2
9010134458BOLT; EYE2
9530339847SCREW1
9540682328SCREW; SET1
9740451204WASHER2
981NAME-PLATE1
983PIN2
9959102385SENSOR; ANGLE1
9954444902SENSOR; ANGLE1
9964255077SPRING; PLATE1
9974274371O-RING1
Technical Overview

Modern excavators predominantly use swashplate-type axial piston pumps. By electronically adjusting the swashplate angle via proportional valves, the piston stroke and pump displacement are precisely controlled. This enables instant response to operator commands: reducing flow for energy savings under light loads, while boosting pressure for heavy digging. Crucially, it balances power and efficiency, minimizing heat generation and extending equipment lifespan.

Product Images
Hitachi Excavator Hydraulic Main Pump Assembly Technical Diagram of Hitachi Hydraulic Pump Close-up of Hitachi Hydraulic Pump Components
Frequently Asked Questions
What is the warranty time of the products?

The warranty time is 3/6 months based on the item details; We don't provide warranty time for original and used products.

What is your delivery time?

Generally, we will arrange the goods within 24 hours after your payment; if not in stock, the delivery time will be communicated in advance, usually 3-7 days.

What are your main products?

We are specialized in spare parts for excavator hydraulic system, such as travel motor, swing motor, travel gearbox, swing gearbox, gear parts, hydraulic pump, hydraulic parts, etc. If you need other excavator parts, we also can supply as your requirements.

Buy Hitachi K3V280 Hydraulic Main Pump for ZX850-3 ZX650-3 EX1200-6 Excavators at wholesale prices
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