Komatsu D31 Pumps Guide

Komatsu D31 pumps can vary by pump type, machine configuration, and serial number. This guide is designed to help customers researching pump applications for the Komatsu D31 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

D31A-16, D31A-17, D31A-20, D31AM-20, D31E-17, D31E-20, D31EX-21, D31EX-21A-M, and more

Hydraulic Pumps

Below are example hydraulic pumps references associated with the Komatsu D31 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 07952-00001 — Grease Pump Ass'Y
  • 113-15-00270 — Pump Ass'Y
  • 704-12-30100 — Pump Ass'Y,(See Fig.3601)
  • 113-15-00470 — Pump Ass'Y
  • 705-12-32110 — Pump Ass'Y

Water Pumps

Below are example water pumps references associated with the Komatsu D31 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6130-62-1200 — Water Pump Ass'Y
  • 6130-62-1201 — Water Pump Ass'Y
  • 6130-62-1302 — Water Pump Ass'Y
  • The part specified in the line above can be used instead of this part6130-62-1300 — Water Pump Ass'Y
  • The part specified in the line above can be used instead of this part6130-62-1301 — Water Pump Ass'Y

Oil Pumps

Below are example oil pumps references associated with the Komatsu D31 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6130-52-1006 — Oil Pump Ass'Y
  • 6130-52-4010 — Pump Cover Ass'Y
  • The part specified in the line above can be used instead of this part6130-52-1005 — Oil Pump Ass'Y
  • 6134-51-1000 — Oil Pump Ass'Y
  • 6134-52-1100 — Oil Pump Ass'Y

Fuel & Injection Pumps

Below are example fuel & injection pumps references associated with the Komatsu D31 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6130-72-1111 — Injection Pump Ass'Y
  • DK101049-8090 — Pump Ass'Y
  • DK105220-1810 — Feed Pump Ass'Y
  • DK152200-1120 — Pump,Priming
  • The part specified in the line above can be used instead of this part6130-72-1110 — Injection Pump Ass'Y

Additional Pump References

These additional pump references can help narrow the search for Komatsu D31 pump applications.

  • 07950-10200 — Pump
  • 6136-21-4341 — Gear,Pump Drive
  • 6136-31-1130 — Gear,Pump Drive
  • 07950-10450 — Pump
  • 6732-81-4110 — Pump,Suction

Identification Notes

For Komatsu D31 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 D31 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.