Hoypeyfiy Electric Water Pump Rotor for Toyota Prius & Lexus CT200h 2010-2016 — Direct-Fit 161A0-29015, Balanced Durable Plastic

Hoypeyfiy 161A0-290015 is a direct-fit electric water pump rotor replacement engineered to restore coolant circulation and reduce noise for Toyota Prius (2010–2015) and Lexus CT200h (2010–2016).

If your hybrid’s electric water pump is making unusual sounds or the cooling performance has degraded, you can replace just the rotor instead of the whole pump assembly. This Hoypeyfiy rotor matches factory part numbers 161A0-29015, 161A0-39015 and WPT190 and uses high-strength engineering plastic designed for corrosion resistance and precise tolerances. The result is a cost-effective, targeted repair that addresses worn internal components while keeping installation straightforward for experienced DIYers and professional technicians alike.

How does this rotor fix overheating or noise issues?

A worn or damaged rotor can lose balance, reduce flow, and create vibration that shows up as noise or diminished cooling. Replacing the rotor restores the pump’s internal geometry and balance, improving coolant circulation and quieting the unit.

• Restores original centrifugal flow characteristics
• Reduces vibration by replacing unbalanced or chipped fins
• Stops noise associated with worn rotor components
• Targets only the faulty part—saves cost vs. full pump replacement

Will this part fit my vehicle?

This rotor is manufactured to replace part numbers 161A0-29015, 161A0-39015 and WPT190 and is intended for Toyota Prius, Prius C, Prius V (model years 2010–2015) and Lexus CT200h (2010–2016). Always cross-check your vehicle’s OEM part number and the compatibility chart in the product listing before ordering to ensure an exact fit.

• Direct replacement for specified OEM numbers
• Compatible with multiple Prius family models and CT200h
• Check VIN or existing part number for confirmation
• Contact support for fitment questions or compatibility checks

What is the build quality and material of this rotor?

The rotor is molded from high-strength engineering-grade plastic chosen for its resistance to corrosion and wear within the cooling system environment. The one-piece, balanced construction minimizes internal vibration and helps maintain consistent pump performance over time.

• Durable engineering plastic resists coolant and temperature exposure
• Precision molding ensures tight tolerances for proper fit
• One-piece design reduces risk of component failure
• Balanced geometry for smoother operation and reduced noise

How difficult is installation and what support is available?

Replacing the rotor requires disassembly of the electric water pump housing, which is a moderate-level job best performed by a technician or an experienced DIYer comfortable with cooling-system work. Hoypeyfiy offers customer support to answer compatibility and installation questions so you can proceed with confidence.

• Requires pump housing access and basic mechanical tools
• Not a full pump swap—saves parts cost but needs careful assembly
• Follow torque and sealing procedures to avoid leaks
• Contact Hoypeyfiy support for guidance on fit and steps

Who is this for? This rotor is aimed at owners and mechanics seeking a precise, cost-saving repair for affected Toyota Prius and Lexus CT200h hybrid models. If the symptom is pump noise, intermittent overheating, or a diagnosis pointing to a worn internal rotor, this replacement part provides a targeted solution that preserves the original pump housing while restoring reliable cooling performance.