Komatsu D39 Pumps Guide

Komatsu D39 pumps can vary by pump type, machine configuration, and serial number. This guide is designed to help customers researching pump applications for the Komatsu D39 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

D39E-1/P-1, D39E-1A/P-1A, D39EX-21, D39EX-21A, D39EX-21A-M, D39EX-22, D39EX-23, D39EX-24, and more

Hydraulic Pumps

Below are example hydraulic pumps references associated with the Komatsu D39 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 1269 466 H91 — Pump Assy, Equipment
  • 706 980 C91 — Pump Assy, Charge And Scavenge
  • 07952-70004 — Grease Pump Ass'Y
  • 705-12-33110 — Pump Ass'Y
  • 720-2M-00021 — Pump Ass'Y

Water Pumps

Below are example water pumps references associated with the Komatsu D39 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 1240 520 H92 — Kit, Water Pump
  • NSS — Pump, Water
  • 6736-61-1201 — Kit, Water Pump
  • 6736-61-1202 — Kit, Water Pump
  • 6731-62-1110 — Kit,Water Pump

Oil Pumps

Below are example oil pumps references associated with the Komatsu D39 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6732-51-1110 — Pump, Lubricating Oil
  • 6732-51-1111 — Pump, Lubricating Oil
  • 6732-51-1112 — Pump, Lubricating Oil
  • 6738-51-1100 — Oil Pump Ass'Y
  • 6751-51-1110 — Pump Assembly, Oil

Fuel & Injection Pumps

Below are example fuel & injection pumps references associated with the Komatsu D39 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 1240 735 H1 — Brace, Fuel Pump
  • 1282 074 H1 — Gasket, Fuel Pump
  • 1295 335 H91 — Pump Assy, Fuel
  • 1304 737 H1 — Gear, Fuel Pump
  • 1309 772 H1 — Lever, Injection Pump

Charge Pumps

Below are example charge pumps references associated with the Komatsu D39 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 705-22-31230 — Pump Assembly, Gear (Sar 36)

Additional Pump References

These additional pump references can help narrow the search for Komatsu D39 pump applications.

  • 1268 400 H1 — Rod, Pump Control
  • 1280 340 H1 — Hose, Pump To Filter
  • 129 967 H1 — Hose, Pump Outlet
  • 1304 338 H91 — Harness, Washer Pump
  • 1304 401 H91 — Pump, Washer

Identification Notes

For Komatsu D39 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 D39 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.