Komatsu HM350 Pumps Guide

WQC Parts supplies WQ Certified aftermarket Komatsu parts and Komatsu replacement parts for heavy equipment applications. Use this guide to move from machine, model, pump type, or part-number research toward the correct replacement option. Built Better. Lasts Longer.

Komatsu HM350 pumps can vary by pump type, machine configuration, and serial number. This guide is designed to help customers researching pump applications for the Komatsu HM350 family move from general machine intent toward the correct part number.

Use this page to review example pump references by type, then continue through the pump hub system or use the site search once you have a likely part number. The Komatsu parts book for the exact machine serial number remains the final authority for fitment.

Common Model References in This Family

HM350-1, HM350-1L, HM350-2, HM350-2R

Hydraulic Pumps

Below are example hydraulic pumps references associated with the Komatsu HM350 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 07952-70004 — Grease Pump Ass'Y
  • 705-12-38011 — Pump Ass'Y,Sar3-80
  • 705-40-01920 — Pump Ass'Y
  • 705-41-07050 — Pump Ass'Y,(Sar8+8)
  • 705-41-07051 — Pump Ass'Y

Water Pumps

Below are example water pumps references associated with the Komatsu HM350 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6212-61-1203 — Water Pump Ass'Y
  • 6212-61-1205 — Water Pump Ass'Y
  • 6218-K6-9900 — Gasket Kit,Water Pump
  • This shows a discontinued part. The part specified in the above line is supplied instead.6212-61-1203 — Water Pump Ass'Y
  • This shows a discontinued part. The part specified in the above line is supplied instead.6212-61-1204 — Water Pump Ass'Y

Oil Pumps

Below are example oil pumps references associated with the Komatsu HM350 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6217-51-1510 — Gear,Pump Drive
  • 6218-51-2002 — Oil Pump Ass'Y
  • 6218-51-2004 — Oil Pump Ass'Y
  • The part and the part specified in the line immediately above are interchangeable.6218-51-2002 — Oil Pump Ass'Y
  • The part specified in the line above can be used instead of this part6218-51-2001 — Oil Pump Ass'Y

Fuel & Injection Pumps

Below are example fuel & injection pumps references associated with the Komatsu HM350 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6218-71-1110 — Fuel Pump Ass'Y
  • 6218-71-1111 — Fuel Pump Ass'Y
  • 6218-71-1130 — Fuel Pump Ass'Y
  • 6218-71-1131 — Fuel Pump Ass'Y
  • This shows a discontinued part. The part specified in the above line is supplied instead.6218-71-1110 — Fuel Pump Ass'Y

Gear Pumps

Below are example gear pumps references associated with the Komatsu HM350 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 705-12-20640 — Pump Ass'Y,(Sar8)
  • 705-12-38211 — Pump Ass'Y,(Sar 80)
  • 705-17-38340 — Pump Ass'Y,(Sar80)
  • 705-22-39050 — Pump Ass'Y,(Sar90)

Charge Pumps

Below are example charge pumps references associated with the Komatsu HM350 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 705-95-07091 — Pump Assembly, Gear (Sdr 80 + 80 + Sb 8)

Additional Pump References

These additional pump references can help narrow the search for Komatsu HM350 pump applications.

  • 07950-10450 — Pump
  • 6217-71-3220 — Gear,Pump Drive
  • 6251-71-8210 — Priming Pump
  • 711-20-31120 — Pump
  • ND092130-0360 — Priming Pump

Identification Notes

For Komatsu HM350 machines, pump selection should be confirmed using the machine model, serial number, and the parts-book diagram for the specific system application. Do not rely on model alone where serial-range changes or alternate pump arrangements may apply.

Where to Go Next

Need Help Confirming a Pump?

If you are researching a Komatsu HM350 pump and are not fully sure which part applies, gather the machine model, serial number, and any visible pump number before reaching out. That information can be used to guide you toward the correct pump and quote options.

For final confirmation, always verify against your Komatsu parts book for the exact machine serial number.