Komatsu PC450 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 PC450 pumps can vary by pump type, machine configuration, and serial number. This guide is designed to help customers researching pump applications for the Komatsu PC450 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

PC450-6, PC450-6K, PC450-6K-J, PC450-6K-KE, PC450-6Z, PC450-7, PC450-7-M1, PC450-7E0, and more

Hydraulic Pumps

Below are example hydraulic pumps references associated with the Komatsu PC450 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 07952-70004 — Grease Pump Ass'Y
  • 208-98-31211 — Pump Ass'Y,(See Fig.Y1980-01A0)
  • 20Y-06-22570 — Pump Ass'Y
  • 708-2H-00120 — Pump Ass'Y
  • 708-2H-00191 — Pump Ass'Y

Water Pumps

Below are example water pumps references associated with the Komatsu PC450 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6151-62-1101 — Water Pump Ass'Y
  • 6151-62-1102 — Water Pump Ass'Y
  • 6155-K6-9900 — Gasket Kit,Water Pump
  • The part and the part specified in the line immediately above are interchangeable.6151-62-1100 — Water Pump Ass'Y
  • 6151-62-1104 — Water Pump Ass'Y

Oil Pumps

Below are example oil pumps references associated with the Komatsu PC450 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6151-51-1005 — Oil Pump Ass'Y
  • 6251-51-1001 — Oil Pump Ass'Y
  • The part and the part specified in the line immediately above are interchangeable.6151-51-1005 — Oil Pump Ass'Y
  • CU3025130 — Gasket,Oil Pump
  • CU3895756 — Oil Pump Ass'Y

Fuel & Injection Pumps

Below are example fuel & injection pumps references associated with the Komatsu PC450 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6151-72-3100 — Case Ass'Y,Injection Pump Drive
  • 6152-72-1210 — Injection Pump Ass'Y
  • 6152-72-1221 — Injection Pump Ass'Y
  • 6152-72-1222 — Injection Pump Ass'Y
  • 6152-72-1250 — Injection Pump Ass'Y

Gear Pumps

Below are example gear pumps references associated with the Komatsu PC450 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 704-24-26430 — Gear Pump Ass'Y

Charge Pumps

Below are example charge pumps references associated with the Komatsu PC450 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 207-04-61120 — Pump
  • 20Y-04-K2081 — Pump Ass'Y
  • 20Y-04-K2180 — Pump Ass'Y

Additional Pump References

These additional pump references can help narrow the search for Komatsu PC450 pump applications.

  • 07950-10450 — Pump
  • 20Y-06-22571 — Pump A.
  • 7834-20-2001 — Controller,Governor And Pump
  • 7834-20-5001 — Controller,Governor And Pump
  • 20E-00-K1280 — Plate ¤ Operating,Swing And Pump Overide

Identification Notes

For Komatsu PC450 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 PC450 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.