Calorstat TE7091.100J Engine Coolant Thermostat Housing Assembly

Mercedes-Benz Thermostat Housing Assembly

Calorstat TE7091.100J is an engine coolant thermostat housing assembly built for Mercedes-Benz cooling system service. It features an aluminum housing with a silver finish, a gasket included, and a single outlet port for a direct-fit replacement on supported applications.

Key Features

• Aluminum thermostat housing for corrosion-resistant cooling system service
• Silver finish for a clean OE-style appearance
• Gasket included with gasket-type sealing surface
• 2 mounting holes for secure installation
• Thermostat begins to open at 212.0 degrees
• 1 outlet port for the specified engine coolant routing

Detailed Description

This Calorstat engine coolant thermostat housing assembly, part number TE7091.100J, is built for Mercedes-Benz vehicles that use the listed housing configuration. It is a practical replacement for cooling system repairs on models such as the Mercedes-Benz C300, E350, ML350, and GLK350, where proper coolant flow and thermostat control are critical to stable operating temperature. This part cross-references Gates 34704 for the same application.

Compatible With 2008-2014 Mercedes-Benz C300, N/A; 2010-2013 Mercedes-Benz S400, N/A; 2010-2012 Mercedes-Benz C250, N/A; 2010-2012 Mercedes-Benz GLK350, N/A; 2006-2011 Mercedes-Benz C350, N/A; 2006-2011 Mercedes-Benz E350, N/A; 2006-2011 Mercedes-Benz ML350, N/A; 2010-2011 Mercedes-Benz ML450, N/A; 2006-2011 Mercedes-Benz R350, N/A; 2009-2011 Mercedes-Benz SLK300, N/A; 2005-2011 Mercedes-Benz SLK350, N/A; 2006-2009 Mercedes-Benz C230, N/A; 2006-2009 Mercedes-Benz CLK350, N/A; 2008-2009 Mercedes-Benz E300, N/A; 2006-2008 Mercedes-Benz SLK280, N/A; 2006-2007 Mercedes-Benz C280, N/A; 2007 Mercedes-Benz E280, N/A.

What It Helps Address

• Coolant leaks at a worn thermostat housing or sealing surface
• Engine temperature fluctuations caused by a failing thermostat assembly
• Overheating concerns related to restricted coolant flow
• Temperature control issues during Mercedes-Benz cooling system repair
• Replacement needs after cracked or corroded housing damage

Installation Notes and Tips

Verify the engine code, housing style, and connector layout against the original part before installation. Replace the gasket sealing surface as needed, clean mating surfaces thoroughly, and refill the cooling system with the correct coolant specification after service. Bleed air from the system according to the vehicle service procedure to help prevent hot spots and temperature irregularities.

Quality Assurance

Calorstat is a cooling system brand associated with OE-level thermostat and housing applications, and Vernet is noted as an OE supplier to Mercedes-Benz on the listed fitments. Part number TE7091.100J is specified for the applications shown above.