Calorstat TH7186.90J Engine Coolant Thermostat

Engine Coolant Thermostat for Volvo Cooling Systems

Calorstat TH7186.90J is a standard engine coolant thermostat built for precise coolant flow control in Volvo cooling systems. It opens at 194°F (90°C) and includes a gasket-style rubber seal for a direct replacement service on select Volvo models.

Key Features

• Engine coolant thermostat, standard type
• Start-to-open temperature: 194°F / 90°C
• Gasket included for sealing at installation
• Rubber seal material
• Sealing flange outside diameter: 2.2 in.
• Height between flanges: 1.41 in.
• Calorstat TH7186.90J for Volvo cooling system service

Detailed Description

Calorstat TH7186.90J is an engine coolant thermostat for vehicles that require a 194°F opening temperature and a gasket-sealed housing interface. It is listed for multiple Volvo applications, including 2013-2016 Volvo S60, 2016 Volvo S60 Cross Country, 2015-2016 Volvo V60, 2016 Volvo V60 Cross Country, 2015-2016 Volvo XC60, and 2016 Volvo XC70. Additional fitment coverage includes 2004-2011 Volvo S40, 2005-2011 Volvo V50, 2006-2013 Volvo C70, 2007-2013 Volvo C30, and 2012 Volvo S60. This part cross-references Motorad 483-195 and Stant 45119 for the same application.

What It Helps Address

• Engine running too cool or too warm due to thermostat wear
• Delayed coolant circulation control during warm-up
• Temperature fluctuation in the cooling system
• Coolant seepage at the thermostat sealing surface
• Service replacement for Volvo thermostat and housing maintenance

Installation Notes and Tips

• Verify the thermostat opening temperature matches the original specification before installation.
• Inspect the mating surface and housing for corrosion, warping, or residue before fitting the gasket.
• Use the included gasket seal to ensure proper sealing at the flange.
• Refill and bleed the cooling system according to Volvo service procedures after installation.
• Confirm vehicle-specific fitment by year, model, and cooling system configuration before ordering.

Quality Assurance

Calorstat TH7186.90J is an OE-style thermostat service part for Volvo applications. Vernet is identified as an OE supplier to Volvo on several of the listed fitments, supporting application accuracy for Volvo S40, V50, C30, and C70 service needs.