Komatsu PC210-8K Hydraulic Pump Assembly (708-2L-00701): Electronic Control & Replacement Guide (2026)

Quick Answer

Key Takeaways

• The PC210-8K main pump is referenced by multiple part numbers — 708-2L-00701, 708-2L-00700, 708-2L-01701 and 708-2L-01700 — always confirm the number on your pump plate before ordering.
• The pump assembly weighs 162 kg and installs as a complete unit with high replacement precision — a same-day swap for a trained crew.
• Electronic control response is the defining trait of the Dash-8 generation: smooth combined movements and stable output pressure translate directly into working efficiency.
• Wear-resistant, impact-proof core components reduce failure probability in heavy-load duty and extend the service interval between overhauls.
• Fits the PC210-8K — the -8 generation (not the older -7) — so verify the machine series when sourcing.
• Pair the new assembly with fresh filters and oil, and follow the commissioning steps in this guide for maximum service life.

Table of Contents

1. Why the PC210-8K Pump Is Worth Understanding
2. Pump Assembly Reference Data
3. The Electronic Control Advantage of the Dash-8 Generation
4. Part Number Confusion: 708-2L-00701 vs 708-2L-00700
5. Field Symptoms of a Failing PC210-8K Main Pump
6. Installation & Commissioning Steps
7. Maintenance That Extends Pump Life
8. Sourcing the Right Assembly from RITO HYDRAULIC
9. FAQ
10. Get Your PC210-8K Pump Quote

1. Why the PC210-8K Pump Is Worth Understanding

The Komatsu PC210-8K is one of the most widely deployed 21-ton excavators in Europe and export markets — a workhorse for general contracting, utility and demolition work. The Dash-8 generation introduced Komatsu's electronic control architecture, where the maimain pumpoutput is continuously adjusted by electronic signals rather than purely mechanical regulators. This makes the pump more efficient and responsive, but also means replacement units must carry the correct electronic control calibration for the machine.

This guide explains what to check, how to avoid part-number mistakes, and what to expect from a complete RITO assembly.

2. Pump Assembly Reference Data

3. The Electronic Control Advantage of the Dash-8 Generation

On the PC210-8K, the pump works together with the machine's electronic control system to match flow and pressure to the operator's demand in real time. A correctly calibrated replacement pump delivers three measurable benefits:

• Stable output pressure — during combined operations (boom up while swinging, or travelling with the arm working), the pump holds pressure without sagging, so cycles stay smooth and predictable.
• Smooth combined movements — the electronic regulator blends pump output between circuits, reducing jerky transitions that wear the machine and tire the operator.
• Better working efficiency — responsive control means less time per cycle and lower fuel burn for the same volume of material moved.

This is why the control calibration matters as much as the displacement. A pump with the wrong control setting will fit physically but perform poorly — an issue to discuss with your supplier before ordering, not after installation.

4. Part Number Confusion: 708-2L-00701 vs 708-2L-00700

The PC210-8K pump family carries several reference numbers, which often confuses buyers. The differences usually relate to machine serial ranges, regional specifications, or left/right pump variants within the twin-pump layout. In practice:

• 708-2L-00701 and 708-2L-00700 are commonly listed for the PC210-8K main pump — treat them as related references and confirm against your machine serial.
• 708-2L-01701 and 708-2L-01700 appear in later or regional (European) listings of the same assembly.
• The number stamped on your failed pump's body is the definitive reference — match it exactly when you send your enquiry.

Send your supplier: machine model (PC210-8K), machine serial number, and the full number stamped on the pump plate or body. With those three pieces of information, a good supplier eliminates the ambiguity completely.

5. Field Symptoms of a Failing PC210-8K Main Pump

6. Installation & Commissioning Steps

1. Confirm the pump plate number and machine serial before removal.
2. The 162 kg assembly requires a proper hoist — use the lifting points, never sling around ports or sensors.
3. Inspect the drive coupling and mounting face; clean thoroughly before fitting the new unit.
4. Replace the return filter and suction strainer — a new pump needs clean oil.
5. After fitting, bleed the pump inlet and run at idle; cycle boom, arm and bucket to purge air.
6. Verify the electronic control responds correctly — check for new error codes before returning to full load.

7. Maintenance That Extends Pump Life

• Keep hydraulic oil at ISO 4406 16/14/11 or better — contamination is the main cause of premature pump failure.
• Keep operating temperature below 80°C; clean the oil cooler fins regularly in dusty conditions.
• Follow the Komatsu filter service schedule; inspect the suction strainer more often in heavy-duty cycles.
• Log cycle times and oil temperature monthly — a slow upward drift is the earliest warning of internal wear.

8. Sourcing the Right Assembly from RITO HYDRAULIC

RITO HYDRAULIC supplies the complete Komatsu PC210-8K maimain pumpsembly with OEM-parameter fit and electronic control calibration. Every unit is individually tested — pressure, flow and case drain measured per assembly — before export packing, and carries a service warranty.

Browse our Komatsu hydraulic pump range or the full product catalog for pumps, swing motors, travel motors and control valves across all major excavator brands.

9. FAQ

Q1: What part numbers fit the PC210-8K hydraulic pump?

The main pump family is referenced as 708-2L-00701, 708-2L-00700, 708-2L-01701 and 708-2L-01700. Confirm the number stamped on your pump plate and your machine serial number for an exact match.

Q2: Is the pump the same on the PC210-7 and PC210-8K?

No. The Dash-7 and Dash-8 generations use different pump controls and part numbers. The 708-2L-00701 family is for the Dash-8 (PC210-8 / 8K). Verify your machine generation before ordering.

Q3: How heavy is the PC210-8K pump assembly?

Approximately 162 kg net — heavy enough to require a hoist, but a straightforward complete-unit swap for a trained crew.

Q4: Why does my PC210-8K show an error after a pump replacement?

Usually the new pump's control calibration does not match the machine, or the pressure sensor connection is faulty. Always install a unit specified for the PC210-8K and verify sensor connections before commissioning.

Q5: How long does replacing the main pump take?

With a complete assembly, a trained mechanic typically completes the swap within one working day, including commissioning checks.

Q6: Where can I buy a PC210-8K hydraulic pump assembly?

RITO HYDRAULIC supplies the complete 708-2L-00701 family assembly with OEM-parameter fit, per-unit test report, warranty and export packing. Send your machine model, serial number and pump plate number for a same-day quote.

10. Get Your PC210-8K Pump Quote

The Komatsu PC210-8K hydraulic pump is a complete, high-precision assembly built for the Dash-8 generation — responsive electronic control, stable pressure and wear-resistant core components that keep the machine productive and lower long-term repair costs. When it needs replacing, choose a tested complete assembly from a verified manufacturer.

Send us your machine model, serial number and the part number from your pump plate. RITO HYDRAULIC will confirm stock, provide a test report sample and quote FOB pricing and lead time the same day.