Rein CTA0020 Engine Coolant Thermostat Housing Assembly

OE-Style Thermostat Housing for Mercedes-Benz

Rein CTA0020 is an OE quality engine coolant thermostat housing assembly built for direct replacement service on select Mercedes-Benz models. It is engineered to match original equipment design specifications, with factory-style materials and calibrated thermostat response for consistent cooling system control.

Key Features

• Matches original equipment design specifications
• Supplied with all gaskets or seals necessary for installation
• Manufactured to strict engineering standards for materials and tolerances
• Thermostat calibrated to 100 degrees Celsius for stable operating temperature
• Direct replacement thermostat housing assembly for OE-style fitment

Detailed Description

The Rein CTA0020 thermostat housing assembly is designed for Mercedes-Benz cooling system repair where accurate fit and temperature control matter. Rein builds these assemblies from vehicle-specific molds to follow OEM dimensions closely, helping the housing install cleanly and align with factory specifications. Depending on the application, the housing uses metal or plastic construction to match the original design requirements. This part cross-references URO 2722000415 for the same application. Rein CTA0020 is a practical choice for Mercedes-Benz C250, C300, C350, E350, ML350, R350, SLK350, and related applications where OE-style replacement is needed.

Common Repair Symptoms

• Coolant leaks at the thermostat housing
• Engine running too cool or too warm
• Temperature fluctuations during normal driving
• Cracked or warped housing from age and heat cycling
• Cooling system service after thermostat-related fault codes

Installation Notes and Tips

Verify engine configuration and model year before ordering, since fitment varies by Mercedes-Benz application and some 2006 vehicles require a production date of 3/2/05 or later. Clean the sealing surfaces thoroughly before installation and inspect adjacent cooling system components for wear. This thermostat housing assembly is listed for application-specific use on 2005-2013 Mercedes-Benz models, including C230, C280, C300, C350, C250, E280, E300, E350, CLK350, GLK350, ML350, ML450, R350, SLK280, SLK300, SLK350, S400, and related fitments shown in the catalog.

Quality Assurance

Rein manufactures OE quality thermostat assemblies to meet or exceed original material requirements and factory tolerances. The housing and thermostat components are built for durability and consistent response, supporting reliable cooling system performance on Mercedes-Benz applications. Part number CTA0020 is engineered as a direct replacement solution for professional repair and maintenance work.