Dorman 902-5912 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Dorman 902-5912 is a replacement engine coolant thermostat housing assembly built for specified Mercedes-Benz applications. It is made from metal with a natural finish and includes the thermostat, gasket, and sensor for a direct-fit cooling system repair.

Compatible with Mercedes-Benz C250, C300, C350, E350, ML350, and related models, this thermostat housing assembly is engineered to match the fit and durability of the original housing. The 212 degree F thermostat opening temperature supports proper coolant flow control in the engine cooling system.

Key Features

• Metal thermostat housing assembly with natural finish
• Includes thermostat, gasket, and sensor
• One outlet port and two mounting holes
• Gasket included for sealing at installation
• Thermostat opening temperature: 212 degree F
• Direct replacement for select Mercedes-Benz cooling system applications

Detailed Description

Dorman 902-5912 is designed as a replacement engine coolant thermostat housing assembly for select Mercedes-Benz vehicles. It follows the stock housing layout and uses a metal construction to handle repeated temperature cycling in the cooling system. This part cross-references Gates 34704 for the same application. The integrated cover design and included sensor help restore proper thermostat housing function on vehicles such as the Mercedes-Benz C300, E350, and ML350.

Part number 902-5912 is a practical choice when the original thermostat housing is cracked, warped, leaking, or no longer regulating coolant flow correctly. It is also a direct-fit option for Mercedes-Benz C250, GLK350, and SLK350 applications listed in the fitment data.

What It Helps Fix

• Coolant leaks at the thermostat housing
• Overheating caused by thermostat housing failure
• Cracked or warped housing surfaces
• Faulty coolant temperature sensor mounting issues
• Improper thermostat operation in the engine cooling system

Installation Notes and Tips

Verify engine code and vehicle fitment before installation. Replace the gasket during service and inspect the mating surfaces for corrosion, pitting, or old seal material. Because mounting hardware is not included, reuse or source the correct fasteners as needed. Confirm sensor connection and coolant level after installation, then bleed the cooling system according to Mercedes-Benz service procedures.

Quality Assurance

Dorman designs this thermostat housing assembly to match the fit and durability of the original part on specified vehicles and to withstand extreme temperature changes for extended service life. Part number 902-5912 is built for direct replacement use in select Mercedes-Benz cooling system repairs.

Fitment

• Fits 2011-2013 Mercedes-Benz S350, N/A
• Fits 2010-2013 Mercedes-Benz S400, N/A
• Fits 2010-2012 Mercedes-Benz C250, N/A
• Fits 2008-2012 Mercedes-Benz C300, N/A
• Fits 2010-2012 Mercedes-Benz GLK300, N/A
• Fits 2009-2012 Mercedes-Benz GLK350, N/A
• Fits 2006-2011 Mercedes-Benz C350, N/A
• Fits 2007-2011 Mercedes-Benz CLS350, N/A
• Fits 2011 Mercedes-Benz E250, N/A
• Fits 2008-2011 Mercedes-Benz E300, N/A
• Fits 2006-2011 Mercedes-Benz E350, N/A
• Fits 2006-2011 Mercedes-Benz ML350, N/A
• Fits 2010-2011 Mercedes-Benz ML450, N/A
• Fits 2006-2011 Mercedes-Benz R350, N/A
• Fits 2010-2011 Mercedes-Benz SLK200, N/A
• Fits 2009-2011 Mercedes-Benz SLK300, N/A
• Fits 2005-2011 Mercedes-Benz SLK350, N/A
• Fits 2006-2009 Mercedes-Benz C230, N/A
• Fits 2006-2009 Mercedes-Benz C280, N/A
• Fits 2007-2009 Mercedes-Benz CLK280, N/A
• Fits 2006-2009 Mercedes-Benz CLK350, N/A
• Fits 2007-2009 Mercedes-Benz E280, N/A
• Fits 2009 Mercedes-Benz GLK280, N/A
• Fits 2006-2008 Mercedes-Benz SLK280, N/A