Gates 34704 Engine Coolant Thermostat

Integrated Housing Thermostat for Mercedes-Benz

Gates 34704 is an integrated housing engine coolant thermostat built for accurate temperature control in select Mercedes-Benz applications. With OE Exact rating, electric operation, and a 212 degree start-to-open temperature, it supports stable coolant flow and consistent engine operating temperature.

• Integrated housing thermostat design for direct replacement service
• OE Exact rating for OE-style fit and function
• Electric thermostat with check valve and jiggle pin/check valve
• Starts to open at 212°F / 100°C
• 2 bolt holes, 1 seal, and 1.812 in. outlet inside diameter
• Gates part number 34704 for application matching

Gates Integrated Housing Thermostat Line

The Gates Integrated Housing Thermostat line addresses vehicles that use a thermostat built into the housing assembly rather than a standalone unit. Gates applies aftermarket research and development to provide a direct OE-style alternative for modern cooling systems, including electronically controlled designs used on many Mercedes-Benz models.

Detailed Product Overview

This Gates engine coolant thermostat is engineered for Mercedes-Benz vehicles that require an integrated housing thermostat with electric control. The 34704 thermostat opens at 212°F to regulate coolant circulation and help maintain proper operating temperature under normal driving conditions. It is listed as OE Exact and includes a seal, making it a precise replacement choice for service work on the cooling system. This part cross-references Dorman - OE Solutions 902-5912 for the same application.

Vehicle Fitment

• Fits 2013 Mercedes-Benz E400, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2010-2013 Mercedes-Benz S400, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2008-2012 Mercedes-Benz C300, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2010-2012 Mercedes-Benz GLK350, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2010-2011 Mercedes-Benz C250, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2006-2011 Mercedes-Benz C350, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2006-2011 Mercedes-Benz E350, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2006-2011 Mercedes-Benz ML350, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2010-2011 Mercedes-Benz ML450, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2006-2011 Mercedes-Benz R350, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2009-2011 Mercedes-Benz SLK300, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2005-2011 Mercedes-Benz SLK350, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2006-2009 Mercedes-Benz C230, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2008 Mercedes-Benz E300, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2006-2008 Mercedes-Benz SLK280, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
• Fits 2006-2007 Mercedes-Benz C280, N/A; 212 Degree; OE Temperature; Seal included; Integrated Housing Thermostat

Common Cooling System Issues It May Address

• Engine running too cool or too hot due to thermostat control problems
• Coolant temperature fluctuation during normal driving
• Cooling system service needs on Mercedes-Benz C300, E350, ML350, and related models
• Replacement of a worn integrated thermostat housing assembly
• Restoration of proper coolant flow regulation in electronically controlled systems

Installation Notes and Tips

Verify the OE temperature, outlet inside diameter, bolt hole count, and electrical configuration before installation. This Gates 34704 thermostat is specified for integrated housing applications and should be matched to the vehicle’s cooling system layout. Confirm the seal condition and inspect mating surfaces during service to help ensure a proper fit on Mercedes-Benz E400, C350, and other listed applications.

Quality Assurance

Gates positions this thermostat housing line as an OE-style aftermarket solution for modern cooling systems, with product development focused on accurate temperature regulation and control. The OE Exact rating supports application matching for the listed Mercedes-Benz vehicles.