Dorman 902-5950 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Dorman 902-5950 is a replacement engine coolant thermostat housing assembly for select BMW applications. It is built to match the fit and durability of the original housing and is engineered to handle repeated temperature swings in the cooling system.

Compatible With 2011-2017 BMW X3 and 2015-2018 BMW X4, this thermostat housing assembly includes the thermostat and is designed for 2.5L engine models noted in the fitment data. The black housing uses aluminum and plastic construction for a direct replacement approach on the specified vehicles.

Key Features

• Replacement thermostat housing assembly for BMW cooling system service
• Includes thermostat with a 206 degrees F opening temperature
• Black aluminum and plastic construction
• 3 outlet ports for the specified application
• 2 mounting holes with OE-style dimensions
• Dorman 902-5950 for select BMW X3 and BMW X4 models

Detailed Description

This Dorman thermostat housing assembly is made for drivers servicing the engine cooling system on select BMW X3 and BMW X4 vehicles. It follows the stock housing layout closely, with a 1.33 inside diameter, 3.633 flange length, 3.633 flange width, and .384 flange thickness. The assembly also includes the thermostat, helping restore proper coolant flow control at the specified opening temperature. For cross-reference purposes, this part aligns with Genuine 11537586784 and Motorad 955-207 for the same application.

What It Helps Solve

• Coolant leaks at a cracked or worn thermostat housing
• Overheating caused by a thermostat housing failure
• Temperature control issues from a sticking thermostat
• Cooling system service needs on BMW X3 and BMW X4 models
• Fitment problems from an incorrect replacement housing

Installation Notes and Tips

Verify engine application before installation, especially on BMW X3 and BMW X4 models listed for 2.5L engines. This housing does not include mounting hardware or a gasket/seal, so those items must be sourced separately if required for the repair. Confirm hose routing, outlet port alignment, and mounting-hole spacing before final assembly.

Quality Assurance

Dorman designs this replacement thermostat housing assembly to match the fit and durability of the original part and to withstand extreme temperature changes for extended service life.