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Komatsu Hydraulic Pumps for Excavators & Equipment

People widely recognise Komatsu machines for smooth and controlled operation.

Operators notice this through steady movement, balanced response, and consistent handling under load. This level of control begins with the komatsu hydraulic pumps.

In any komatsu hydraulic system, the pump does more than generate pressure. It determines how the machine reacts, distributes power, and maintains system stability during demanding tasks.

At Imara Engineering Supplies, we supply aftermarket Komatsu pumps and OEM-standard units. 

They restore original machine performance across many Komatsu machines.

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32 products

Hydraulic Pump 720-2M-00081 for Komatsu Dozer

Hydraulic Pump 720-2M-00081 for Komatsu D31 D37 Bulldozer

Regular price $39,022.00
Sale price $39,022.00 Regular price
Engine Assembly 6I0793 for Cat 3116 Engine – CAT 953B Loader

Main Hydraulic Pump 708-1L-00320 for Komatsu D65 Bulldozer

Regular price $16,114.00
Sale price $16,114.00 Regular price
Hydraulic Pump 708-1S-11212 for PC35MR2 PC55MR-2 PC50MR

Hydraulic Pump 708-1S-11212 for PC35MR2 PC55MR-2 PC50MR - Excavator

Regular price $5,037.00
Sale price $5,037.00 Regular price
Fan Pump 708-1G-00020 79340673 for Komatsu

Fan Pump 708-1G-00020 79340673 for Komatsu PC4000-6 PC3000-6 Excavators

Regular price $17,032.00
Sale price $17,032.00 Regular price
Hydraulic Pump 705-11-38010 705-11-38011 705-55-34181 705-55-34180

Excavator Hydraulic Pump WA380-3 WA350-3X for D60P-12-E 705-11-38010 705-11-38011 705-55-34181 705-55-34180

Regular price $1,112.00
Sale price $1,112.00 Regular price
Hydraulic Main Pump | Assembly Komatsu | Imara Engineering Supplies

708-3S-00111 Hydraulic Main Pump Assembly for Komatsu PC28MR PC30MR PC35MR PC40MR PC50MR Excavator

Regular price $4,042.00
Sale price $4,042.00 Regular price
Hydraulic Pump Assy 708-1W-00961 708-1W-00960 708-1W-00850 708-1S-00940 708-1U-00120 708-1U-00140 708-1U-00150 for Komatsu WA470-6 WA380-6
Hydraulic Pump 708-1S-00970 7081S00970 for Komatsu WA500

Hydraulic Pump 708-1S-00970 7081S00970 for Komatsu WA500 WA380-6 WA470 WA480 Loader

Regular price $6,265.00
Sale price $6,265.00 Regular price
Hydraulic Pump 705-55-34090 705-55-34110 - Komatsu WA600-6S

Tripple Hydraulic Pump 705-55-34090 705-55-34110 for Komatsu WA600-6S Wheel Loaders – Hydraulic System

Regular price $2,729.00
Sale price $2,729.00 Regular price
Hydraulic Main Pump 23B-60-11102 for Grader GD611A-1 GD623-1 GD521-1 23B-60-11102

Hydraulic Main Pump 23B-60-11102 for Grader GD611A-1 GD623-1 GD521-1 – Hydraulic System

Regular price $960.00
Sale price $960.00 Regular price
Komatsu PC200 Valve 702-21-57400 - Hydraulic Pump Solenoid

Hydraulic Main Pump Solenoid Valve 702-21-57400 for Komatsu PC200-7 PC200-8 Excavators

Regular price $379.00
Sale price $379.00 Regular price $334.00
Pump Kit P3007-KIT-P1 for Komatsu PC300-7 PC350-7 PC360-7

Hydraulic Pump Service Kit P3007-KIT-P1 for Komatsu PC300-7 / PC350-7 / PC360-7 – Excavator

Regular price $758.00
Sale price $758.00 Regular price
Hydraulic Pump 708-1S-00252 for Komatsu PC30 – Excavator

Hydraulic Pump 708-1S-00252 for Komatsu PC30 – Excavator

Regular price $2,688.00
Sale price $2,688.00 Regular price $3,537.00

Collection: Komatsu Hydraulic Pumps

Early Signs of Pump Wear in Komatsu Machines

Hydraulic pump wear often develops gradually rather than as sudden failure.

Common signs include:

  • Slight delay in system response
  • Uneven movement during combined functions
  • Reduced control during fine operations
  • Increased resistance during operation

These changes may appear minor, but they reduce efficiency and affect operator control over time.

Replacing the komatsu excavator pump restores smooth operation and improves machine handling.

Why Pump Stability Is Critical in Komatsu Systems

A komatsu hydraulic system is designed for coordinated movement.

Multiple functions operate at the same time, including:

  • Boom
  • Arm
  • Swing
  • Travel

For this coordination to remain stable, the excavator hydraulic pump komatsu must:

  • Maintain steady flow across circuits
  • Adjust output based on load demand
  • Prevent pressure drop during operation
  • Distribute power evenly across functions

If the pump loses stability, the system becomes less predictable and harder to control.

Selecting the Right Pump for Komatsu Equipment

Selecting a pump is not only about physical fit.

A correct komatsu main pump replacement must match how the system behaves during operation.

Key factors include:

  • Flow response under load
  • Pressure control behaviour
  • Interaction with control valves
  • Machine-specific system setup

Two pumps may appear similar but can perform differently once installed. These differences affect how the machine responds in real working conditions.

Pump Performance in Multi-Function Operation

Komatsu machines are built to perform several actions at once.

For example:

  • Digging while rotating
  • Lifting while travelling
  • This places a continuous demand on the excavator hydraulic pump.

The pump must:

  • Maintain stable pressure levels
  • Adjust flow quickly across circuits
  • Keep movement smooth and controlled

High-quality komatsu hydraulic pumps are designed to support this level of performance without delay.

When to Replace a Komatsu Hydraulic Pump

Pump wear affects overall system performance.

You may need a komatsu main pump replacement if you notice:

  • Loss of smooth operation
  • Poor coordination between functions
  • Increased heat within the hydraulic system
  • Higher fuel consumption
  • Reduced efficiency under load
  • These signs indicate that the pump no longer maintains system balance.

Replacement Compared to Repair

Pump repair may restore partial function, but it does not always recover full system performance.

A replacement unit provides:

  • Consistent output across working conditions
  • Improved control response
  • Reduced risk of repeat failure
  • Stable operation in demanding environments

For most heavy machinery, replacement offers a more reliable long-term solution.

OEM-Standard Komatsu Pump Solutions

We supply pumps built to match original system performance.

Each unit is designed to:

  1. Integrate with existing komatsu hydraulic systems
  2. Deliver stable pressure and flow
  3. Work with installed control components
  4. Support long service life

These pumps are engineered to perform in line with original machine expectations.

Why Choose Imara Engineering Supplies

Hydraulic performance depends on correct part selection.

We provide:

  • Reliable komatsu hydraulic pumps
  • Support with model and system identification
  • Fast supply for urgent replacement needs
  • Durable replacement parts for heavy machinery

Our goal is to restore full system performance and reduce downtime.

Frequently Asked Questions

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