Komatsu PC200-7 / PC220LC-7 Main Pump: Quick Spec & Fitment Reference (708-2L-31123 / 708-2L-00300)

Quick Answer

Key Takeaways

• Application: Komatsu PC200-7 and PC220LC-7 (the -7 generation).
• Order numbers: 708-2L-31123 and 708-2L-00300 — the plate on your pump decides.
• Type: twin variable-displacement axial-piston pump; weight 195 kg; packing 53 × 53 × 81 cm.
• Confirm with four items: pump order number, machine model, serial number, and clear photos.
• Weakness in all functions points to the pump; weakness in one or two points to the valve.
• Always flush the system and renew the filters after fitting a new pump.

Table of Contents

• 1. At a Glance: Spec Summary
• 2. Part Numbers Explained
• 3. Fitment: Which Machines Use It
• 4. How to Confirm the Right Pump
• 5. Nameplate Data to Record
• 6. What Ships and How It Is Packed
• 7. Quick Symptom Reference
• 8. FAQ
• 9. Get the Right Pump

1. At a Glance: Spec Summary

The fastest way to check a match is this summary. Anything marked "confirm by plate" should be read from the pump's own nameplate before you order.

Complete, individually tested assemblies in this family are listed with the wider excavator hydraulic parts range, matched by full order number rather than by model name.

2. Part Numbers Explained

Both numbers belong to the same Komatsu 708-2L pump family. Reading the code tells you what each block is doing:

The lesson is simple: "708-2L" narrows you to a family, not to a part. The trailing block is what makes the pump correct for your machine, so the number on the plate always wins. See the full Komatsu-series range for other models in this generation.

3. Fitment: Which Machines Use It

This pump family is shared across the Komatsu -7 generation. The exact order number for your machine depends on its build level and serial range, so confirm with the plate rather than the model name alone.

Related -7 machines (for example PC210-7 variants) use the same wider 708-2L family but with different variants — never assume a neighbouring model takes the same pump.

4. How to Confirm the Right Pump

Four checks cover almost every case. If any one is unknown, verify it before ordering — on a 195 kg assembly, a return costs far more than a phone call.

5. Nameplate Data to Record

Use this as a checklist before you send an enquiry. It is the difference between a same-day confirmation and a week of back-and-forth.

6. What Ships and How It Is Packed

• Weight: about 195 kg as a complete assembly — plan a lifting point and equipment at both ends.
• Packing: 53 × 53 × 81 cm export case, with the pump secured against movement in transit.
• Freight note: the size and weight put this firmly in heavy-freight territory, so quote sea or air carefully and allow for crating.
• Before fitting: drain, flush and renew the return filter and suction strainer — debris from the old pump will shorten the life of the new one.

7. Quick Symptom Reference

Use the pattern of the fault to decide where to look first:

If the pattern points to one or two functions only, check the control valve assembly before spending on a pump. For a deeper walk-through of Dash-7 pump symptoms, see our companion guide to the Komatsu PC210-7K hydraulic pump (708-2L-00202).

8. FAQ

Q1: What is the main pump on a Komatsu PC200-7?

A twin (tandem) variable-displacement axial-piston pump assembly, ordered under numbers in the 708-2L family such as 708-2L-31123 and 708-2L-00300. Confirm the exact number from your pump nameplate.

Q2: Are 708-2L-31123 and 708-2L-00300 the same pump?

They are in the same 708-2L family but carry different variant blocks. They are related, not automatically interchangeable — confirm by nameplate and machine serial.

Q3: Does this pump fit both PC200-7 and PC220LC-7?

Both machines use the 708-2L family, but the exact variant depends on the build level and serial range. Always confirm against the plate on your own pump.

Q4: How heavy is it, and how big is the crate?

About 195 kg, packed in a 53 × 53 × 81 cm export case.

Q5: What do I need to send to get the right pump?

The pump order number from the nameplate, your machine model and serial number, and clear photos of the plate and the pump from a couple of angles.

Q6: How do I know if the pump or the valve is at fault?

Weakness affecting all functions together points to the pump; weakness in one or two functions points to the relevant valve section. A pressure-and-flow test confirms it.

Q7: Should I flush the hydraulic system after fitting a new pump?

Yes. Flush the system, renew the return filter and suction strainer, and fill with fresh correct-grade oil — otherwise debris from the old pump will damage the new one.

Q8: What are the symptoms of a worn PC200-7 main pump?

All functions slow and weak together, rising oil temperature, metal in the filter, noise that follows pump speed, and sluggish compound movements.

Q9: Why does the part number matter more than the model name?

Because one model can be built with more than one pump variant over its production run. The number on the plate reflects the actual build, so it is the safest reference.

Q10: How can I be sure the pump is right before it ships?

Ask for a per-unit test report, a 6–12 month warranty, and confirmation that it is a new, complete assembly matched to your exact order number.

9. Get the Right Pump

Send us your machine model, serial number and the full order number from the pump nameplate — plus a few clear photos — and our team will confirm the correct assembly, provide a test-report sample and quote lead time the same day. RITO HYDRAULIC supplies complete, individually tested main pumps, control valves, travel motors and swing motors for Komatsu, Hitachi, Kobelco, Caterpillar, Hyundai, Doosan and Kawasaki-series machines — with export packing and a 6–12 month warranty.

Contact our team or learn more about RITO HYDRAULIC.