WA380-6 Water Pump Assembly — Komatsu Wheel Loader
Looking for a Water Pump Assembly for the WA380-6 Komatsu Wheel Loader? You are in the right place. Send us your machine serial and the parts desk confirms fitment, condition and price — we normally answer within one business day. Block, head, turbo and injectors decide how many hours the machine delivers before the next stoppage.
WARNING: Cancer and reproductive harm. See www.P65Warnings.ca.gov
Call to help verify fitment and always confirm the part number before ordering.
Pricing & availability
This part is quoted individually — new, rebuilt and used options are often available.
OEM — Factory part, full warranty, exact fitment to the machine serial.
Fits these machines
Partial list from OEM application data. Send us your model and serial and we will confirm the fit.
- Komatsu WA380-62004–2015A50001 – C50000Serial range
Specifications
| Specifications | Value |
|---|---|
| OEM part number | 423-27-11090 |
| Machine | WA380-6 (2004–2015) |
| Serial range | A50001 – C50000 |
| Part category | Engine & Engine Parts |
Engine & Engine Parts
Other parts in this category
- 423-27-11110Engine AssemblyOn request
- 423-27-11010Cylinder Block AssemblyOn request
- 423-27-11060Cylinder Head AssemblyOn request
- 423-27-11140Piston and Ring SetR$8,022
- 423-27-11030Turbocharger AssemblyR$12,900
- 423-27-11040Valve and Injector SetR$6,070
- 423-27-11210Injection Pump AssemblyR$17,669
- 423-27-11240Starter Motor AssemblyR$3,902
- 423-27-11280Flywheel AssemblyR$8,564
- 423-27-11310Oil Pan AssemblyR$4,824
- 423-27-11340Engine Mount AssemblyR$1,545
- 423-27-11410Exhaust Manifold AssemblyR$6,179
- 423-27-11460Coolant Pump AssemblyR$2,927
Fitment guarantee
If it does not fit, we make it right — fast.
Fast order processing
Most orders ship within 1–2 business days.
Real parts people
Call, text or chat with a parts expert.
Core return
Rebuilt core with a return label and a 30-day credit.