Water Pump For Yanmar 3D84 3TNE84 Komatsu WA30-2 PC38UU-1 PC20-5 #129327-42100

Water Pump for Yanmar and Komatsu

This water pump is a replacement cooling component for Yanmar 3D84 and 3TNE84 engines and Komatsu WA30-2, PC38UU-1, and PC20-5 machines, cross-referencing OEM part number 129327-42100.

Overview

This water pump circulates coolant through the engine to maintain proper operating temperature on Yanmar and Komatsu equipment. It serves as a direct replacement for the original pump on the listed engine and machine models. Built to match OEM part 129327-42100, this water pump keeps cooling systems running reliably in demanding conditions.

Built For Performance

• Cross-references OEM part number 129327-42100
• Designed for Yanmar 3D84 and 3TNE84 engine applications
• Compatible with Komatsu WA30-2, PC38UU-1, and PC20-5 machines
• Sealed bearing design supports continuous coolant circulation
• Cast housing built to withstand engine heat and vibration

Fits These Machines

• for Yanmar 3D84
• for Yanmar 3TNE84
• for Komatsu WA30-2
• for Komatsu PC38UU-1
• for Komatsu PC20-5

On-The-Job Use

• Replacing a leaking or failed water pump during engine service
• Cooling system repairs on compact excavators and loaders
• Routine maintenance for Yanmar diesel engines
• Overhaul and rebuild projects on Komatsu compact equipment

Specs At A Glance

Good To Know

Q: How do I confirm this water pump fits my machine? A: Match the OEM number 129327-42100 against your existing pump or parts catalog, and verify your engine model before ordering.

Q: Should the coolant be replaced when installing a new water pump? A: Yes, fresh coolant and a new gasket are recommended at installation to protect the new pump and the cooling system.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.