Komatsu WA270 Pumps Guide

Komatsu WA270 pumps can vary by pump type, machine configuration, and serial number. This guide is designed to help customers researching pump applications for the Komatsu WA270 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

WA270-3 ACTIVE, WA270-5, WA270-5-, WA270-7, WA270-8, WA270PT-3 ACTIVE

Hydraulic Pumps

Below are example hydraulic pumps references associated with the Komatsu WA270 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 42Y-62-H4560 — Hydraulic Pump
  • 42Y-62-H0P26 — Hydraulic Pump
  • 42Y-62-H4230 — Hydraulic Pump
  • 07952-70004 — Grease Pump Ass'Y
  • 423-947-1110 — Pump Ass'Y

Water Pumps

Below are example water pumps references associated with the Komatsu WA270 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6736-61-1200 — Water Pump Assembly
  • 6731-62-1110 — Kit,Water Pump
  • 6735-61-1101 — Water Pump Ass'Y
  • 6735-61-1501 — Water Pump Ass'Y
  • 6736-61-1520 — Seal,Water Pump

Oil Pumps

Below are example oil pumps references associated with the Komatsu WA270 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 6735-51-1111 — Oil Pump
  • 6731-51-1111 — Oil Pump Ass'Y
  • 6755-51-1110 — Pump Assembly, Oil
  • 6756-51-1110 — Pump Assembly, Oil

Fuel & Injection Pumps

Below are example fuel & injection pumps references associated with the Komatsu WA270 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 42Y-01-H0P07 — Injection Pump
  • 6734-71-1730 — Fuel Pump
  • 07005-01012 — Gasket,Injection Pump Oil Piping
  • 07005-01412 — Gasket,Fuel Tube (Injection Pump)
  • 6738-71-1160 — Injection Pump Ass'Y

Gear Pumps

Below are example gear pumps references associated with the Komatsu WA270 family. Some may be stocked products and others may be quote-based references depending on current catalog coverage.

  • 42Y-15-H0P61 — Gear Pump
  • This part cannot be supplied as an individual part. It is supplied as an assembly. It however is supplied as an individual part by authorized distributors only.UC4094410679 — Gear Pump
  • This part cannot be supplied as an individual part. It is supplied as an assembly. It however is supplied as an individual part by authorized distributors only.UC4706068025 — Gear Pump Ass'Y
  • UC4094410679 — Gear Pump
  • UC4706068025 — Gear Pump Ass'Y

Additional Pump References

These additional pump references can help narrow the search for Komatsu WA270 pump applications.

  • 421-07-H6120 — Pump
  • 42Y-15-H0S78 — Emer Steering Pump
  • 42Y-62-H4250 — Twin Pump
  • 42Y-15-H0T55 — Emer Steering Pump
  • 42Y-46-H0P01 — Grease Pump

Identification Notes

For Komatsu WA270 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 WA270 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.