Komatsu PC5500 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 PC5500 pumps can vary by pump type, machine configuration, and serial number. This guide is designed to help customers researching pump applications for the Komatsu PC5500 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

PC5500, PC5500-1, PC5500-6, PC5500-6E

Hydraulic Pumps

Below are example hydraulic pumps references associated with the Komatsu PC5500 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 461 516 40 — Hydr.-Pump Assy.
  • 655 564 40 — Hydro Pump
  • 766 953 73 — Lube Pump Assy.
  • 768 659 73 — Pump Housing
  • 768 676 73 — Seal Kit Pump Without Valves Concist. Of Fig No.33,39,40 104,107,108,125,127,128,134 153,182

Water Pumps

Below are example water pumps references associated with the Komatsu PC5500 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 763 650 73 — Water Pump
  • 766 142 73 — Water Pump
  • 770 500 73 — Water Pump
  • 797 690 73 — Water Pump
  • 797 733 73 — Water Pump

Oil Pumps

Below are example oil pumps references associated with the Komatsu PC5500 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 634 121 40 — Gear Oil Pump
  • 923 585 40 — Harness - Engine Oil Pump 2
  • 923 587 40 — Harness - Engine Oil Pump 1
  • 923 584 40 — Harness - Engine Oil Pump 2
  • 923 586 40 — Harness - Engine Oil Pump 1

Fuel & Injection Pumps

Below are example fuel & injection pumps references associated with the Komatsu PC5500 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • C303 4245 — Fuel Pump
  • C327 9639 — Fuel Pump Assy.
  • 768 109 73 — Fuel Pump
  • 551 104 40 — Fuel Pump

Gear Pumps

Below are example gear pumps references associated with the Komatsu PC5500 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 792 743 73 — Carrier, Pump
  • 792 745 73 — Gear Pump
  • 918 859 40 — Gear Pump Unit
  • 907 608 40 — Gear Pump
  • 792 959 73 — Gear Pump

Pilot Pumps

Below are example pilot pumps references associated with the Komatsu PC5500 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 634 122 40 — Pilot Pump
  • 907 209 40 — Pilot Pump
  • 907 622 40 — Pilot Pump

Additional Pump References

These additional pump references can help narrow the search for Komatsu PC5500 pump applications.

  • 196 482 40 — Diaphragm Pump
  • 635 090 40 — Pump Distributor Gear Assy.
  • 896 679 40 — Lube Pump Station
  • 906 010 40 — Lube Pump Station

Identification Notes

For Komatsu PC5500 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 PC5500 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.