Calorstat TH7281.85J Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Calorstat TH7281.85J is an engine coolant thermostat housing assembly built with a plastic housing, black finish, and a gasket included for service replacement. It opens at 185.0°F and uses a gasket seal design to support proper coolant control in Audi, Porsche, and Volkswagen applications.

Key Features

• Plastic thermostat housing assembly with black finish
• Start-to-open temperature: 185.0°F
• Gasket included with gasket-type seal
• One outlet port
• Seven mounting holes for OE-style fitment
• Calorstat TH7281.85J for direct replacement service

Detailed Description

This Calorstat thermostat housing assembly is intended for vehicles that use a 185°F thermostat opening point to regulate engine coolant flow. The housing is made from plastic and includes a gasket, helping restore the sealing surface at the thermostat interface. Calorstat TH7281.85J cross-references Gates 34839 for the same application. It is a fitment-based replacement for select Porsche Cayenne, Porsche Panamera, Audi Q5, Audi S5, Audi SQ5, Audi S4, Audi A6 Quattro, Audi A7 Quattro, Audi Q7, Audi A8 Quattro, and Volkswagen Touareg models.

What It Helps Address

• Coolant leaks at the thermostat housing seal
• Engine temperature control issues from a worn thermostat assembly
• Cracked or heat-aged plastic housing replacement
• Fault codes related to coolant temperature regulation
• Service replacement for OE-style thermostat housing wear

Installation Notes and Tips

• Verify the engine code and housing style before ordering, since fitment varies by model and year.
• Inspect the mating surface and coolant passages for residue or damage before installation.
• Replace coolant according to the vehicle service procedure after the housing is installed.
• Confirm the 185°F opening specification matches the original part requirement.

Quality Assurance

Calorstat is an OE supplier to Audi and Volkswagen, and this thermostat housing assembly is built to match the specified application requirements for the listed vehicles. Use the part number TH7281.85J to confirm the correct replacement before installation.

Compatible Vehicles

• Fits 2011-2018 Porsche Cayenne, N/A. Opening Temp: 85 C / 185 F
• Fits 2013-2017 Audi Q5, N/A. Vernet is an OE Supplier to Audi
• Fits 2010-2017 Audi S5, N/A. Vernet is an OE Supplier to Audi
• Fits 2014-2017 Audi SQ5, N/A. Vernet is an OE Supplier to Audi
• Fits 2010-2016 Audi S4, N/A. Vernet is an OE Supplier to Audi
• Fits 2012-2016 Porsche Panamera, N/A. Opening Temp: 85 C / 185 F
• Fits 2009-2015 Audi A6 Quattro, N/A. Vernet is an OE Supplier to Audi
• Fits 2012-2015 Audi A7 Quattro, N/A. Vernet is an OE Supplier to Audi
• Fits 2011-2015 Audi Q7, N/A. Vernet is an OE Supplier to Audi
• Fits 2011-2015 Volkswagen Touareg, N/A. Vernet is an OE Supplier to Volkswagen
• Fits 2013-2014 Audi A8 Quattro, N/A. Vernet is an OE Supplier to Audi