Komatsu D85 Pumps Guide

Komatsu D85 pumps can vary by pump type, machine configuration, and serial number. This guide is designed to help customers researching pump applications for the Komatsu D85 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

D85A-12, D85A-18, D85A-21, D85A-21-E, D85A-21A, D85A-21B, D85A-21B-ER, D85C-21, and more

Hydraulic Pumps

Below are example hydraulic pumps references associated with the Komatsu D85 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 07432-72101 — Steering Pump Ass'Y
  • 07433-71101 — Pump Ass'Y
  • 07433-71102 — Pump Ass'Y
  • 07433-71103 — Pump Ass'Y
  • 07444-66100 — Hydraulic Pump A.

Water Pumps

Below are example water pumps references associated with the Komatsu D85 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6610-61-1030 — Impeller Ass'Y,Water Pump
  • 6610-61-1310 — Shaft,Water Pump
  • 6610-61-1321 — Impeller,Water Pump
  • 6610-61-1511 — Seal, Water,Water Pump (K4)
  • 6610-K3-0001 — Gasket Kit,Water Pump

Oil Pumps

Below are example oil pumps references associated with the Komatsu D85 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6610-51-1300 — Gear Ass'Y,Lubricating Pump
  • 6610-51-1400 — Gear Ass'Y,Lubricating Pump
  • 6610-51-1500 — Cover Ass'Y,Lubricating Pump
  • 6620-51-1021 — Oil Pump Ass'Y
  • The part specified in the line above can be used instead of this part6620-51-1020 — Oil Pump Ass'Y

Fuel & Injection Pumps

Below are example fuel & injection pumps references associated with the Komatsu D85 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 02720-20204 — Plug,Priming Pump
  • 6600-08-6181 — Gasket Kit,Pt Fuel Pump
  • 6610-71-1011 — Housing Ass'Y,Fuel Pump
  • 6610-71-2340 — Gear,Pump Drive
  • 6610-71-7011 — Drive Ass'Y,Fuel Pump

Gear Pumps

Below are example gear pumps references associated with the Komatsu D85 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 705-11-33540 — Pump Assembly
  • 705-11-34251 — Pump Assembly, Gear (Sal 50)
  • 705-11-38010 — Pump Assembly, Gear (Sal 80)
  • 705-41-01200 — Pump Assembly
  • 705-51-20930 — Pump Assembly, Gear (Sal 50 + 45)

Additional Pump References

These additional pump references can help narrow the search for Komatsu D85 pump applications.

  • 07950-00200 — Pump
  • 154-11-05020 — Service Kit,Torque Converter Pump
  • 154-13-41120 — Pump
  • 154-19-05010 — Service Kit,Steering Pump
  • 154-60-05030 — Service Kit,Pump Piping

Identification Notes

For Komatsu D85 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 D85 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.