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Main Piston Pump 708-1S-01111 708-1S-00130 708-1S-00510 Komatsu PC30MR-1 PC27R-8 PC30UU-3 Excavator Hydraulic Pump

Main Piston Pump 708-1S-01111 708-1S-00130 708-1S-00510 Komatsu PC30MR-1 PC27R-8 PC30UU-3 Excavator Hydraulic Pump

708-1S-00130 Hydraulic Pump

Main Piston Pump 708-1S-01111

708-1S-00510 Hydraulic Pump

Place of Origin:

China

Brand Name:

CAVOYD

Model Number:

PC27R-8 PC30UU-3 PC30MR-1

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Main Piston Pump 708-1S-01111 708-1S-00130 708-1S-00510 Komatsu PC30MR-1 PC27R-8 PC30UU-3 Excavator Hydraulic Pump Main Piston Pump 708-1S-01111 708-1S-00130 708-1S-00510 Komatsu PC30MR-1 PC27R-8 PC30UU-3 Excavator Hydraulic Pump Main Piston Pump 708-1S-01111 708-1S-00130 708-1S-00510 Komatsu PC30MR-1 PC27R-8 PC30UU-3 Excavator Hydraulic Pump Main Piston Pump 708-1S-01111 708-1S-00130 708-1S-00510 Komatsu PC30MR-1 PC27R-8 PC30UU-3 Excavator Hydraulic Pump Main Piston Pump 708-1S-01111 708-1S-00130 708-1S-00510 Komatsu PC30MR-1 PC27R-8 PC30UU-3 Excavator Hydraulic Pump
Product Details
Product Name:
Hydraulic Pump Assembly
Part No:
708-1S-01111 708-1S-00130 708-1S-00510
Applicable Model:
PC27R-8 PC30UU-3 PC30MR-1
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:

708-1S-00130 Hydraulic Pump

,

Main Piston Pump 708-1S-01111

,

708-1S-00510 Hydraulic Pump

Payment & Shipping Terms
Minimum Order Quantity
1 set
Price
Negotiable
Packaging Details
Dimension: L40×W30×H30 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 708-1S-01111 708-1S-00130 708-1S-00510 Komatsu PC30MR-1 PC27R-8 PC30UU-3 Main Piston Pump Pressure Pump

The PC27R-8 is a Komatsu small excavator (PC27R-8 / PC30R-8 platform). The hydraulic main pump is a main variable displacement piston pump, with a matching pilot gear pump. Common main pump part numbers: 708-1S-01111 (PC30MR-1), etc.; for the PC27R-8, please confirm with the original old part number.

Common Faults
  • Weak movement / slow operation: Internal leakage from worn main pump pistons/valve plate/slippers, reduced volumetric efficiency.
  • Pump abnormal noise / squealing: Insufficient suction or air ingress, contaminated oil, internal pump wear.
  • Engine lugging / speed drop under load: Seized regulator/power control spool.
  • High oil temperature: Severe main pump internal leakage.
  • Oil leakage: Aged main shaft oil seal, worn end-cover O-rings.
  • Jitter / pressure fluctuation: Air in the system, seized regulator, scored valve plate.
Purchasing Recommendations
  • Confirm the sub-model and part number.
  • Confirm main pump vs pilot pump.
  • Confirm new / remanufactured / compatible part.
  • Overhaul parts: cylinder block, valve plate, piston (slipper), retainer plate, swashplate, main shaft, bearings, seal kit.
  • After-sales: warranty of 6–12 months; fill with hydraulic oil before starting; after repair, replace filters and clean the oil tank.
Technical Documentation
Excavator hydraulic pump component view showing internal parts

Hydraulic pump internal mechanism diagram

Pump assembly diagram with part identification

Piston pump technical illustration

Hydraulic pump cross-section view

Pump component close-up detail

Excavator pump installation view

Hydraulic system schematic diagram

Pump maintenance diagram and procedures

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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