Motorad CH5353 Engine Coolant Thermostat Housing - Upper

Engine Coolant Thermostat Housing for Toyota and Lexus

The Motorad CH5353 engine coolant thermostat housing is built for upper cooling system service on select Toyota and Lexus applications. It uses aluminum construction and is manufactured to OE quality standards for a precise replacement on vehicles such as the Toyota Camry, Highlander, Avalon, Sienna, Solara, and Lexus ES330, RX330, RX300, ES300, and RX400h.

Key Features

• Aluminum housing with a silver finish
• Upper engine coolant water outlet with housing design
• Four mounting holes for secure installation
• Thermal shock validated for cooling system durability
• 100% leak tested before release
• Meets or exceeds OEM standards

Detailed Description

Motorad CH5353 is an OE-style engine coolant thermostat housing made for upper cooling system replacement on a range of Toyota and Lexus vehicles. The aluminum body helps provide stable fitment in demanding coolant environments, while the OE-supplier manufacturing approach supports consistent dimensional accuracy. This part cross-references Dorman OE Solutions 902-5926 for the same application.

Compatible With 2001-2010 Toyota Highlander, upper; 2006-2008 Lexus RX400h, upper; 2004-2008 Toyota Solara, upper; 2004-2006 Lexus ES330, upper replacement; 2004-2006 Lexus RX330, upper; 2004-2006 Toyota Camry, upper; 2000-2004 Toyota Avalon, upper; 1999-2003 Lexus ES300, upper replacement; 1999-2003 Lexus RX300, upper replacement; 2003 Toyota Camry, upper; 2001-2003 Toyota Sienna, upper; 2002 Lexus ES300, upper replacement; 2000 Lexus ES300, upper replacement; 2001 Lexus ES300, upper; 1999 Lexus ES300, upper.

What This Part Helps Address

• Cracked or warped thermostat housing
• Coolant leaks at the upper water outlet
• Corrosion or deterioration in the housing body
• Improper sealing at the cooling system connection
• Cooling system service on Toyota Camry, Highlander, Avalon, Sienna, and Lexus ES-series and RX models

Installation Notes and Tips

Verify engine application, upper housing location, and mounting-hole alignment before installation. This housing does not include a gasket or seal, so the sealing surface should be inspected and cleaned carefully during service. Confirm the coolant hose routing and outlet style match the original part, especially on Lexus RX330 and ES330 applications with housing-specific notes.

Quality Assurance

Motorad manufactures this thermostat housing to OE quality standards using proprietary material selection for cooling-system durability. Each unit is thermal shock validated and 100% leak tested to help ensure dependable sealing performance in service.