Motorad 963-189 Engine Coolant Thermostat Housing Assembly

Integrated Thermostat Housing for OE Fitment

Motorad 963-189 is an integrated engine coolant thermostat housing assembly built for OE-style replacement on select Audi cooling systems. It combines the thermostat, housing, and seal in one service part, with a 189°F operating temperature for applications that call for that specification.

Manufactured with OEM-quality materials and OE supplier processes, this Motorad Integrated Housing Thermostat is built with a plastic, steel, and copper construction and a rubber O-ring seal for a secure coolant connection. The copper case and wax compound are used to respond quickly to coolant temperature changes.

Key Features

• Part number: 963-189
• Integrated Engine Coolant Thermostat Housing Assembly
• 189°F thermostat temperature
• Plastic, steel, and copper construction
• Black finish
• Rubber O-ring seal included
• 8 bolt holes for OE-style mounting
• No bleeder hole
• OE supplier manufacturing standards

Product Details

The Motorad Integrated Housing Thermostat line is built for vehicles that use a combined thermostat and housing design, reducing the need to source separate components during cooling system service. Part number 963-189 is specified for Audi applications that require a 189°F thermostat and integrated housing layout, including select Audi A6, A6 Quattro, A7, A7 Quattro, A8 Quattro, Q7, Q8, S4, S5, S5 Sportback, and SQ5 models. This part cross-references URO 06E121111AT for the same application.

What This Part Helps Address

• Coolant temperature control that is outside the OE specification
• Thermostat housing leaks at the seal interface
• Cracked or worn integrated housing components
• Delayed thermostat response during warm-up
• Cooling system service on Audi vehicles with integrated housing design

Installation Notes

Verify the OE temperature specification and housing style before installation. This assembly uses an O-ring seal and does not include mounting hardware or an installation tool. Clean the mating surfaces thoroughly, inspect the coolant passages, and replace coolant according to the vehicle service procedure after installation. Confirm fitment by year, model, and engine configuration for Audi A6 Quattro, A7 Quattro, and related applications before ordering.

Quality Assurance

Motorad manufactures this thermostat housing assembly to OEM specifications and processes using materials selected for demanding automotive cooling systems. The copper case and wax compound are used to support consistent temperature response in OE-style service applications.