Gates 34046 Engine Coolant Thermostat

Integrated Thermostat Housing for OE Temperature Control

Gates 34046 is an integrated housing thermostat built for precise engine coolant temperature regulation. It follows OE performance expectations and includes a seal, making it a direct-fit cooling system service part for select Ford, Lincoln, and Mazda applications.

For drivers searching for a 180 degree thermostat housing for Ford Focus, Ford Escape, Ford Fusion, Lincoln MKZ, or Mazda 3 applications, this Gates integrated housing thermostat provides the temperature control needed to keep the cooling system operating at the correct range.

Key Features

• Integrated Housing Thermostat design for applications that use a combined thermostat and housing assembly
• Start to open temperature: 180°F / 82°C
• OE Performance rating for factory-style temperature regulation
• Seal included
• 3 bolt holes for OE-style mounting
• Check valve / jiggle pin check valve included
• Non-electric thermostat design
• Outlet dimensions: 1.4 in and 0.82 in outside diameter; 1.15 in and 0.58 in inside diameter

Product Details

Gates Integrated Housing Thermostat 34046 is engineered for vehicles that use an integrated thermostat housing rather than a standalone thermostat. Gates positions this product line as an aftermarket solution for modern cooling systems that require accurate temperature control and a housing-based design. The 180°F opening temperature matches OE-style operation for the listed Ford, Lincoln, and Mazda fitments, including 2013-2018 Ford Focus, 2013-2016 Ford Escape, 2014-2016 Ford Fusion, 2014-2016 Lincoln MKZ, and 2004-2013 Mazda 3.

This part cross-references Dorman OE Solutions 902-682 and 902-1125 for the same application.

What It Helps Address

• Engine running too cool or too warm due to thermostat control issues
• Coolant temperature fluctuation during normal driving
• Leaks at the thermostat housing or sealing surface
• Cooling system warning lights related to thermostat performance
• Service replacement needs on integrated thermostat housing designs

Installation Notes and Tips

• Verify the OE housing style and outlet dimensions before installation.
• Inspect the mating surfaces and cooling passages for corrosion or debris.
• Replace coolant as required by the vehicle service procedure after thermostat housing service.
• Confirm the correct application by year, make, and model before ordering.
• Use the listed fitment notes for vehicles such as 2013 Ford Fusion, 2013 Lincoln MKZ, and 2006 Mazda MX-5 Miata where application details matter.

Quality Assurance

Gates develops aftermarket thermostat solutions for integrated housing applications with OE-style temperature control and OE performance positioning. Part number 34046 is built to meet the needs of the specified Ford, Lincoln, and Mazda cooling system applications.