Dorman 902-5172 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing for BMW

This Dorman engine coolant thermostat housing assembly is a direct replacement for select BMW applications, including 2011 BMW 528i, 2012-2013 BMW 530i, 2010-2012 BMW 740i, and 2011-2012 BMW 740Li. Built with a black plastic housing and integrated thermostat, it is engineered to match the fit and durability of the original housing assembly.

Part number 902-5172 is designed for BMW 2.5L engine models from 2009 to 2015 and includes the thermostat and seal needed for a complete housing service. This part cross-references OE number 11537580627 and Motorad 828-207 for the same application.

Key Features

• Engine coolant thermostat housing assembly for select BMW 528i, 530i, 740i, and 740Li models
• Black plastic housing with standard gasket type and included gasket or seal
• Integrated thermostat with 207 degree F opening temperature
• Three outlet ports and 1.25 inside diameter
• Single mounting hole design with no bleeder hole
• Regular grade replacement part for cooling system service
• Package contents include the thermostat housing, thermostat, and sensor

Detailed Description

Dorman 902-5172 is a replacement engine coolant thermostat housing assembly built for BMW cooling system repair. It is shaped to match the stock housing assembly on specified vehicles and uses materials selected to handle repeated temperature swings in normal engine operation. The housing is black plastic and includes the thermostat and seal, helping restore proper coolant routing through the engine cooling circuit.

For BMW owners searching for a thermostat housing assembly for 2011 BMW 528i, 2012-2013 BMW 530i, 2010-2012 BMW 740i, or 2011-2012 BMW 740Li, this part number 902-5172 provides a direct-fit service replacement. It is also a practical match for BMW 2.5L engine models from 2009 to 2015 where the original housing has cracked, warped, or begun leaking.

What It Helps Fix

• Coolant leaks from a cracked or deteriorated thermostat housing
• Overheating caused by thermostat housing failure
• Temperature control issues from a worn thermostat
• Coolant seepage at the housing-to-engine sealing surface
• Cooling system service needs on BMW 528i, 530i, 740i, and 740Li models

Installation Notes and Tips

Confirm engine application before installation, since this housing is listed for BMW 2.5L engine models within the stated year range. Inspect the mating surfaces, coolant hoses, and related sensors during service, and replace any damaged seals or worn components before refilling the cooling system. Follow the vehicle service procedure for coolant bleeding and temperature verification after installation.

Quality Assurance

Dorman replacement cooling components are engineered to match stock fit and durability requirements for the specified application. Part number 902-5172 is built to withstand extreme temperature changes for extended service life in normal BMW cooling system operation.