Motorad 958-207 Engine Coolant Thermostat Housing Assembly

Integrated Thermostat Housing for OE-Style Cooling Control

Motorad 958-207 is an engine coolant thermostat housing assembly built for precise temperature control in demanding cooling systems. It combines the thermostat, housing, sensor, and seal in an integrated design for select Audi applications, including Audi A8 Quattro, RS7, S6, S7, and S8 models.

The Integrated Housing Thermostat line is engineered to match OE specifications and processes, with OEM-quality materials and a copper case with wax compound for quick response to coolant temperature changes. Motorad 958-207 is a direct-fit cooling system service part for vehicles that require a 207°F thermostat setting.

Key Features

• Engine coolant thermostat housing assembly with integrated thermostat design
• OE-specified 207°F temperature rating
• Plastic, steel, and copper construction with black finish
• Gasket/seal included with O-ring style seal
• Bleeder hole included for cooling system service
• Five bolt holes and two outlet ports
• Outlet diameters: 1.00 in and 1.52 in
• Bypass diameter: 1.37 in; bypass length: 2.05 in

Detailed Description

Motorad 958-207 is built as an integrated thermostat housing assembly for Audi cooling systems that call for a 207°F thermostat. The housing uses OEM-quality materials and OE-specified manufacturing methods to support stable coolant regulation, while the copper case and wax compound help the thermostat react quickly to temperature changes. This part cross-references Dorman - HELP 15932 for the same application.

Compatible With 2013-2019 Audi A8 Quattro, 2014-2015 Audi RS7, 2016 Audi RS7, 2017-2018 Audi RS7, 2013-2018 Audi S6, 2013-2018 Audi S7, and 2013-2018 Audi S8. Motorad 958-207 is a practical replacement when the original thermostat housing shows wear, leakage, or temperature-control issues.

Common Problems This Part Can Address

• Coolant temperature that runs outside the OE target range
• Leaks at the thermostat housing or seal area
• Slow thermostat response during warm-up or load changes
• Cooling system service needs on vehicles with an integrated housing design
• Faults related to a worn thermostat, housing, sensor, or seal assembly

Installation Notes and Tips

Verify engine application and OE temperature specification before installation. Inspect mating surfaces, replace damaged hoses or clamps as needed, and confirm the O-ring seal seats correctly during assembly. Because mounting hardware and installation tools are not included, reuse or source the required fasteners and service tools separately. Bleed the cooling system thoroughly after installation to remove trapped air and confirm proper coolant circulation.

Quality Assurance

Motorad manufactures this thermostat housing assembly to OEM quality materials and safety standards as an OE supplier, with OE specifications and processes used in production. The integrated design and copper wax-element construction are intended to support consistent temperature regulation in demanding automotive cooling systems.