161A0-29015 Engine Electric Water Pump Rotor Inner Magnet For Toyota Prius 10-15

Engine Electric Water Pump Rotor Inner Magnet for Toyota

This engine electric water pump rotor inner magnet for Toyota replaces a worn or failed magnet inside the water pump to restore proper coolant circulation, citing OEM part number 161A0-29015.

Overview

This engine electric water pump rotor inner magnet for Toyota is designed to restore the functionality of the vehicle cooling system. The engine electric water pump rotor inner magnet spins within the pump chamber to drive coolant through the engine blocks of hybrid vehicles. It provides professional technicians and vehicle owners with a direct-fit component to repair a failing electric water pump without replacing the entire assembly.

Built For Performance

• Features a high-strength permanent magnet core for consistent rotor rotation and performance.
• Manufactured with heat-resistant materials to withstand high coolant operating temperatures.
• Precision-molded outer jacket ensures a secure fit inside the existing electric pump housing.
• Designed to match original dimensions for balanced, vibration-free operation during engine cooling cycles.

Fits These Machines

• for Toyota Prius 2010
• for Toyota Prius 2011
• for Toyota Prius 2012
• for Toyota Prius 2013
• for Toyota Prius 2014
• for Toyota Prius 2015

On-The-Job Use

• Replacing a cracked or weak water pump rotor during routine engine cooling system maintenance.
• Rebuilding a failed electric water pump to eliminate dashboard warning lights and engine overheating.
• Restoring hybrid powertrain efficiency by ensuring consistent coolant flow to critical engine components.

Specs At A Glance

Good To Know

Q: Can this rotor be installed without removing the entire water pump assembly from the engine bay? A: It is usually easiest to remove the pump assembly first to clean the chamber and ensure proper seating of the new rotor.

Q: What causes the original rotor magnet to fail? A: Over time, the plastic casing can crack due to heat cycles, allowing coolant to penetrate and swell the magnet, which stops rotor rotation.

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