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Excavator Hydraulic Pump 708-2L-00770 708-2L-90721 708-2L-00773 Komatsu PC600-7 PC600-8 PC650-7 PC650-8 Main Piston Pump

Excavator Hydraulic Pump 708-2L-00770 708-2L-90721 708-2L-00773 Komatsu PC600-7 PC600-8 PC650-7 PC650-8 Main Piston Pump

Komatsu hydraulic pump for PC600-7

Komatsu PC600-7 Main Piston Pump

708-2L-00770 main piston pump

Place of Origin:

China

Brand Name:

CAVOYD

Model Number:

PC600-7 PC600-8 PC650-7 PC650-8

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Excavator Hydraulic Pump 708-2L-00770 708-2L-90721 708-2L-00773 Komatsu PC600-7 PC600-8 PC650-7 PC650-8 Main Piston Pump Excavator Hydraulic Pump 708-2L-00770 708-2L-90721 708-2L-00773 Komatsu PC600-7 PC600-8 PC650-7 PC650-8 Main Piston Pump Excavator Hydraulic Pump 708-2L-00770 708-2L-90721 708-2L-00773 Komatsu PC600-7 PC600-8 PC650-7 PC650-8 Main Piston Pump Excavator Hydraulic Pump 708-2L-00770 708-2L-90721 708-2L-00773 Komatsu PC600-7 PC600-8 PC650-7 PC650-8 Main Piston Pump Excavator Hydraulic Pump 708-2L-00770 708-2L-90721 708-2L-00773 Komatsu PC600-7 PC600-8 PC650-7 PC650-8 Main Piston Pump
Product Details
Product Name:
Hydraulic Pump Assembly
Part No:
708-2L-00770 708-2L-90721 708-2L-00773
Applicable Model:
PC600-7 PC600-8 PC650-7 PC650-8
Condition:
New / Rebuilt
MOQ:
1 Set
Price:
Negotiable
Payment Terms:
Western Union, T/T, Assurance
Supply Ability:
300 Sets / Month
Delivery Time:
3-8 Working Days
Packaging Details:
Wooden Case / Cartonwith Foam Protection, Or As Required
Transportation Method:
DHL, UPS, FedEx, Sea Freight
Warranty:
6 Months
Highlight:

Komatsu hydraulic pump for PC600-7

,

Komatsu PC600-7 Main Piston Pump

,

708-2L-00770 main piston pump

Payment & Shipping Terms
Minimum Order Quantity
1 set
Price
Negotiable
Packaging Details
Dimension: L80×W45×H50 cm
Delivery Time
3-8 days
Payment Terms
T/T
Supply Ability
300pcs/day
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86--18127821703
280835749@qq.com
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Product Description
Excavator Hydraulic Pump 708-2L-00770 708-2L-90721 708-2L-00773 Komatsu PC600-7 PC600-8 PC650-7 PC650-8 Main Piston Pump Pressure Pump
The PC650-8 Komatsu large excavator utilizes a dual-pump variable displacement piston system. The hydraulic main pump is a tandem main piston pump consisting of front and rear sections.
Common Faults & Diagnostics
  • Weak/Slow Movement on One Pump Side: Internal leakage from worn pistons, valve plate, or slippers in that section. Diagnose by measuring front and rear pump pressures and case drain flow separately.
  • Abnormal Noise/Squealing: Insufficient suction, air ingress, or contaminated oil causing internal pump wear.
  • Engine Lugging/Speed Drop Under Load: Seized power regulator/control spool causing pump to remain at large displacement and absorb excessive power.
  • High Oil Temperature: Severe internal leakage within the main pump.
  • Oil Leakage: Aged main shaft oil seal or worn end-cover O-rings.
  • Jitter/Pressure Fluctuation: Air in the system, seized regulator, or scored valve plate.
Purchasing Recommendations
  • Confirm the specific sub-model and original part number
  • Determine whether you need the complete main pump assembly or just the single pump core
  • Choose between new, remanufactured, or compatible parts - remanufactured units offer significant cost savings for high-value main pump assemblies
  • Common overhaul components include: cylinder block, valve plate, piston (slipper), retainer plate, swashplate, main shaft, bearings, and seal kit
Technical Documentation & Diagrams
Excavator hydraulic pump component view showing internal parts

Hydraulic pump internal mechanism diagram

Complete pump assembly diagram

Piston pump technical illustration

Hydraulic pump cross-section view

Pump component close-up detail

Excavator pump installation view

Hydraulic system schematic diagram

Pump maintenance and service diagram

Technical specifications illustration

Component identification guide

Pump assembly instructions

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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