BUSIDN Electric Water Pump Assembly for Toyota Prius & Lexus CT200h (2010-2019) Replaces 161A0-29015/161A0-39015

Overview

The BUSIDN Electric Water Pump Assembly is a targeted replacement designed for select Toyota hybrids. This unit is driven by the fan belt, circulating coolant through the engine block and radiator to help maintain steady temperatures during everyday driving. It offers a practical upgrade path for aging pumps without requiring a full cooling system overhaul.

In real-world use, a reliable water pump helps keep the engine operating within its optimal range during mixed driving, from quick city starts to longer highway cruises. By moving hot coolant out of the engine and bringing cooler fluid back in, this pump supports consistent heat management and contributes to smoother engine performance under typical loads.

Compatibility and Replacements

This pump replaces part numbers 161A0-29015 and 161A0-39015, and is designed to fit multiple models within the Prius family and the CT200h hybrid lineup. Specifically, it covers a range of vehicles and trims including various Prius models and the CT200h, across different engine outputs used in 1.5L and 1.8L configurations.

• Replaces: 161A0-29015, 161A0-39015
• Fits 2010–2015 Toyota Prius E, G, L, S 1.8L; 2011–2017 Lexus CT200h 1.8L
• Fits 2012–2019 Toyota Prius C 1.5L; 2012–2017 Toyota Prius V 1.8L
• Includes a sealing gasket to help address potential leakage concerns

What to Expect

Users commonly notice improved coolant circulation and a more predictable cooling loop after a replacement, especially in vehicles with aging pumps. While results can vary, the new unit provides a solid foundation for maintaining engine temperature balance under typical driving conditions.

• Professional installation is highly recommended to ensure precise fit and gasket seating
• Verify model and VIN compatibility before purchase to ensure a correct match
• Helps support consistent coolant flow and temperature management in hybrid systems

Purchased parts are designed to integrate with the listed models and fuel configurations, offering a practical option for extending the life of the cooling system without extensive downtime. If you have questions about fitment, our team is available to help confirm compatibility based on your car’s details.