AISIN Engine Water Pump WPT-190 with Gaskets — OE-Fit for Lexus CT200h & Toyota Prius, Carbon-Ceramic Seal

This genuine AISIN water pump is manufactured from all‑new components with an emphasis on durable materials and refined internal flow geometry. AISIN combines smooth coolant channels, precision bearings, and carbon ceramic mechanical seals to reduce wear, resist corrosion, and maintain reliable cooling performance over time. The kit includes the necessary gaskets and is designed to match OE fit and function for the listed Lexus and Toyota hybrid models — always confirm fitment against your vehicle’s engine code before ordering.

How does this AISIN pump improve coolant flow and durability?

The WPT-190 uses engineered rotor geometry and optimized flow passages to minimize turbulence and maintain consistent coolant circulation. Precision ball bearings reduce shaft play, and a carbon ceramic mechanical seal offers long service life compared with basic seals. Materials are chosen to resist rust, corrosion, and scaling — common causes of premature pump failure.

• Smooth internal channels for steady flow
• Efficient rotor design to reduce cavitation
• Ball bearings for lower friction and longer life
• Carbon ceramic seal to prevent leaks and wear

Will this water pump fit my Lexus CT200h or Toyota Prius?

The WPT-190 is listed for specific model years and body variants: Lexus CT200h (2011–2017) and several Toyota Prius models (2010–2015 Prius, 2012–2019 Prius C, 2012–2015 Prius Plug‑In, 2012–2018 Prius V). Fitment can depend on engine variant and production changes, so verify compatibility using your VIN or the vehicle fitment checker before purchase.

• Compatible with listed Lexus and Toyota model years above
• Includes gaskets for proper sealing during installation
• Confirm engine code/VIN to avoid incorrect fit
• Not a remanufactured unit — all components are new

What comes in the package and what should I expect during installation?

The kit contains the AISIN water pump assembly plus the gaskets required to reinstall the pump correctly. Installation typically requires draining coolant, removing accessory components for access, and following torque specs for the mounting fasteners. If you’re replacing a failed pump, also inspect hoses, the thermostat, and the cooling system for residues or corrosion that could affect longevity.

• Complete water pump assembly included
• New gaskets provided to ensure leak-free sealing
• Installation needs coolant drain and re‑fill, and torque adherence
• Recommended inspection of adjacent cooling components

How does AISIN’s manufacturing history matter for replacement parts?

AISIN is a long‑established OEM supplier with extensive experience producing water pumps for original vehicle manufacturers. Their engineering focus on material selection, sealing technology, and flow efficiency mirrors OEM standards, which helps match factory performance and fitment expectations. Choosing a recognized OEM supplier often simplifies compatibility and quality concerns compared with unknown aftermarket options.

• OEM heritage in cooling components since 1965
• Engineering emphasizes longevity and reliable fit
• Materials selected to resist common failure modes
• Globally recognized supplier with rigorous quality controls

Who is this for? Technicians and DIYers seeking an OE‑quality replacement water pump for compatible Lexus CT200h and Toyota Prius variants will find the AISIN WPT-190 a direct, all‑new replacement option. It’s suited to owners replacing a failing pump, performing scheduled cooling‑system maintenance, or restoring a vehicle’s cooling reliability with components designed to resist corrosion and wear. Always confirm specific vehicle fitment and follow proper installation procedures or use a qualified installer for best results.