Dorman 902-5218 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Dorman 902-5218 is a replacement engine coolant thermostat housing assembly for select Audi and Volkswagen applications. It matches the stock housing’s fit and durability requirements, with a plastic black housing, integrated thermostat, and included gasket seal for a direct repair on the cooling system.

• Plastic housing in black finish
• Thermostat included, opening at 185 Deg. F
• Gasket or seal included with gasket-type sealing surface
• 1 outlet port and 7 mounting holes
• Inside diameter: 1.115 in.
• Flange dimensions: 6.375 in. length, 3.5 in. width, 0.545 in. thickness
• Designed for specified Audi Q5, Audi SQ5, Audi Q7, Audi A4 Quattro, Audi A5 Quattro, Audi A6 Quattro, Audi A7 Quattro, Audi A8 Quattro, Audi S4, and Volkswagen Touareg applications

Detailed Fitment and Function

This thermostat housing assembly is built for vehicles that use an integrated cover design in the cooling system. It is a direct replacement for select 2011-2017 Volkswagen Touareg, 2015-2016 Audi A5, 2013-2016 Audi Q5, 2014-2016 Audi SQ5, 2011-2015 Audi Q7, 2013-2014 Audi A4 Quattro, 2012-2014 Audi A5 Quattro, 2009-2014 Audi A6 Quattro, 2012-2014 Audi A7 Quattro, 2012-2013 Audi A8 Quattro, and 2012 Audi S4 models. It also fits 2017 Audi Q5 and 2017 Audi SQ5 applications with the specified VIN requirements.

This part cross-references Motorad 758-185 for the same application. Part number 902-5218 is also associated with OE reference 06E121111AD.

What It Helps Repair

• Coolant leaks at the thermostat housing
• Cracked or warped plastic housing surfaces
• Thermostat sticking open or closed
• Engine temperature control problems
• Cooling system service on vehicles with an integrated thermostat cover

Installation Notes

Verify engine code and VIN details before ordering, especially on 2017 Audi Q5 and 2017 Audi SQ5 applications. Confirm the 8th digit of the VIN where noted in the fitment data. Inspect the sealing surface, replace worn coolant components as needed, and follow the vehicle manufacturer’s coolant fill and bleed procedure after installation.

Quality Assurance

Dorman designs this replacement thermostat housing assembly to match the fit and durability of the original housing on specified vehicles. The housing is engineered to handle repeated temperature changes for dependable service in the cooling system.