AISIN WPT-803 Water Pump with Gasket – Fits Lexus ES350, RX350, RX450h, Camry, Highlander, RAV4, Sienna, Venza

AISIN WPT-803 water pump with gasket: engineered reliability for your cooling system

AISIN is widely recognized as a leading original equipment manufacturer of automotive water pumps. The WPT-803 is built from all-new components—not remanufactured—with upgraded design and materials to support dependable cooling performance and long service life during everyday use and longer drives.

The pump blends several advanced design elements: smooth coolant flow channels, an efficient rotor system, precise ball bearings, and carbon ceramic sealing. This combination aims to maintain steady coolant movement, reduce heat buildup, and help the engine run at a consistent temperature over time.

Durable construction that stands up to wear

Materials are chosen to resist rust, corrosion, and coolant scaling, addressing common wear patterns that can affect pump life. The result is a robust component designed for consistent performance in varied climates and maintenance cycles.

• Gasket included to simplify installation and sealing
• All-new components with upgraded materials for top performance
• Resistance to rust, corrosion, and scaling for longevity

Compatibility and fit guidance

Compatibility spans select Lexus and Toyota models. Engine fitment can vary by model, so confirm with the fit checker for your exact engine.

• LEXUS: ES350 (2007-2018), RX350 (2007-2015), RX450h (2010-2015)
• TOYOTA: Camry (2005-2018), Highlander (2008-2016), RAV4 (2006-2012), Sienna (2007-2016), Venza (2009-2016)

What this means for your driving

• Steady cooling and reliable operation during short trips or long hauls
• Potentially lower maintenance risk with a fresh, purpose-built unit
• Seamless integration with compatible cooling systems when installed correctly