36F-12450-00-00 Water Pump Shaft with Impeller for Yamaha YZ 125 YZ125 1998

Water Pump Shaft with Impeller for Yamaha YZ 125

This water pump shaft with impeller is a replacement cooling system component for the Yamaha YZ 125, cross-referencing OEM part number 36F-12450-00-00, and it drives coolant flow through the engine to keep operating temperatures in check.

Overview

This water pump shaft with impeller is built for the Yamaha YZ 125 and serves as the rotating core of the cooling system. For riders rebuilding a 1998 YZ125 or refreshing a tired pump assembly, this water pump shaft with impeller restores the coolant circulation the engine depends on. It suits DIY mechanics and race teams alike who want a direct-fit replacement without hunting down discontinued OEM stock.

Built For Performance

• Cross-references OEM part number 36F-12450-00-00 for straightforward matching
• Shaft and impeller supplied as one assembled unit for simpler installation
• Impeller vanes shaped to move coolant efficiently through the pump housing
• Machined shaft surface for smooth rotation inside the seal and bearing
• Designed to fit the 1998 Yamaha YZ 125 water pump assembly

Fits These Machines

• for Yamaha YZ 125 (1998)

On-The-Job Use

• Cooling system rebuilds on a 1998 YZ 125
• Top-end and water pump service performed together
• Restoring coolant circulation on a bike that has sat unused
• Race prep and preventive maintenance between events

Specs At A Glance

Good To Know

Q: Does this include the seals and bearings? A: This listing covers the water pump shaft and impeller unit only, so check your seal and bearing condition during installation. Replacing worn seals at the same time helps prevent coolant leaks and premature shaft wear.

Q: How do I confirm this fits my YZ 125? A: Match the OEM number 36F-12450-00-00 against your machine and verify your model year before ordering. Serial number differences can affect fitment, so compare your old part whenever possible.

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