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Home > Products > Excavator Hydraulic Pump >
Excavator Hydraulic Pump 708-2K-00330 708-2K-00014 708-2K-00015 Komatsu PC3000-6 PC4000-6 Main Piston Pump Pressure Pump

Excavator Hydraulic Pump 708-2K-00330 708-2K-00014 708-2K-00015 Komatsu PC3000-6 PC4000-6 Main Piston Pump Pressure Pump

708-2K-00330

Komatsu hydraulic pump for PC3000-6

708-2K-00330 main piston pump

Place of Origin:

China

Brand Name:

CAVOYD

Model Number:

PC3000-6 PC4000-6

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Excavator Hydraulic Pump 708-2K-00330 708-2K-00014 708-2K-00015 Komatsu PC3000-6 PC4000-6 Main Piston Pump Pressure Pump Excavator Hydraulic Pump 708-2K-00330 708-2K-00014 708-2K-00015 Komatsu PC3000-6 PC4000-6 Main Piston Pump Pressure Pump Excavator Hydraulic Pump 708-2K-00330 708-2K-00014 708-2K-00015 Komatsu PC3000-6 PC4000-6 Main Piston Pump Pressure Pump Excavator Hydraulic Pump 708-2K-00330 708-2K-00014 708-2K-00015 Komatsu PC3000-6 PC4000-6 Main Piston Pump Pressure Pump Excavator Hydraulic Pump 708-2K-00330 708-2K-00014 708-2K-00015 Komatsu PC3000-6 PC4000-6 Main Piston Pump Pressure Pump
Product Details
MOQ:
1 Set
Delivery Time:
3-8 Working Days
Payment Terms:
Western Union, T/T, Assurance
Applicable Model:
PC2000-8
Price:
Negotiable
Transportation Method:
DHL, UPS, FedEx, Sea Freight
Packaging Details:
Wooden Case / Cartonwith Foam Protection, Or As Required
Warranty:
6 Months
Part No:
708-2K-00120 708-2K-00122 708-2K-00123
Product Name:
Hydraulic Pump Assembly
Condition:
New / Rebuilt
Supply Ability:
300 Sets / Month
Highlight:

708-2K-00330

,

Komatsu hydraulic pump for PC3000-6

,

708-2K-00330 main piston pump

Payment & Shipping Terms
Minimum Order Quantity
1 set
Price
Negotiable
Packaging Details
Dimension: L105×W55×H60cm
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
Excavator Hydraulic Pump 708-2K-00330 708-2K-00014 708-2K-00015 Komatsu PC3000-6 PC4000-6 Main Piston Pump Pressure Pump
Common Operational Faults
  • Weak / slow movement on one pump or side: Internal leakage from worn pistons/valve plate/slippers in that section, reduced volumetric efficiency — measure each section's pressure and case drain flow to diagnose.
  • All functions weak: Insufficient main pump pressure, failed main relief valve setting, severe pump internal leakage.
  • Pump abnormal noise / squealing: Insufficient suction or air ingress (with large suction flow, cavitation damages quickly), contaminated oil, internal pump wear.
  • Engine lugging / speed drop under load: Seized power regulator/control spool; pump stays at large displacement.
  • High oil temperature: Severe main pump internal leakage, high-pressure oil converting to heat.
  • Oil leakage: Aged main shaft oil seal, worn end-cover O-rings, poor case drain.
  • Jitter / pressure fluctuation: Air in the system, seized regulator, scored valve plate.
Purchasing Recommendations
  • Confirm the sub-model and the main pump configuration (multi-section combination).
  • Confirm main pump assembly vs single pump section.
  • Confirm the part number based on the original old part number; part numbers for ultra-large displacement pumps are highly specific.
  • Overhaul parts: cylinder block, valve plate, piston (slipper), retainer plate, swashplate, main shaft, bearings, seal kit.
Important Note: Genuine new units are extremely expensive; remanufactured (Reman) units are the mainstream cost-saving option; aftermarket compatible units require extreme caution. Always verify warranty coverage and ensure proper installation procedures including filling with hydraulic oil before starting, replacing all filters after repair, and cleaning the oil tank.
Excavator hydraulic pump component view showing internal parts and assembly
Hydraulic pump internal mechanism diagram with labeled components
Pump maintenance and service diagram showing repair procedures
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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