Gates 34043 Engine Coolant Thermostat

Integrated Thermostat Housing for OE Temperature Control

Gates 34043 is an integrated housing thermostat built for accurate coolant temperature regulation in vehicles that use a combined thermostat and housing design. It follows OE performance expectations and includes a seal, making it a direct-fit cooling system service part for select Ford, Mercury, and Mazda applications.

This Gates Integrated Housing Thermostat line focuses on aftermarket replacements for modern cooling systems that package the thermostat inside the housing. For drivers searching for a 194 degree thermostat for Ford Escape, Ford Transit Connect, or Mercury Mariner service, part number 34043 provides the correct temperature range and housing configuration.

Key Features

• Integrated Housing Thermostat design for OE-style cooling system service
• Start to open temperature: 195°F / 91°C
• Jiggle pin weep hole for air bleeding during coolant service
• 3 bolt holes for the specified housing pattern
• 1 seal included in the assembly
• OE Performance comparison rating
• Non-electric thermostat construction

Detailed Product Information

Gates 34043 is engineered for vehicles that require an integrated thermostat housing rather than a standalone thermostat. The housing design helps maintain stable engine coolant temperature, which supports consistent warm-up and temperature control in everyday driving. This part number is listed with OE-style fitment for 2005-2008 Ford Escape, 2005-2008 Mercury Mariner, 2008 Mazda Tribute, and 2010-2013 Ford Transit Connect applications.

Part number 34043 also cross-references Motorad 512-195 for the same application. The listed outlet dimensions, bolt-hole count, and jiggle pin/check valve configuration help confirm the correct housing style before installation.

What This Part Helps Address

• Coolant temperature that stays too low or takes too long to reach operating range
• Overheating caused by a thermostat that no longer opens at the correct temperature
• Coolant leaks at the thermostat housing interface
• Air trapped in the cooling system after thermostat service
• Fitment issues when replacing an integrated thermostat housing on Ford Escape, Mercury Mariner, or Mazda Tribute models

Installation Notes

Verify the housing style, outlet dimensions, and bolt-hole pattern before installation. This thermostat is listed for 194 degree OE-temperature applications and should be matched to the vehicle’s cooling system specification. Confirm the exact model year and engine configuration for Ford Escape, Mercury Mariner, Mazda Tribute, and Ford Transit Connect applications before service.

For best results, inspect the mating surfaces and cooling system condition during replacement. Proper coolant refill and air bleeding are important when servicing an integrated housing thermostat with a jiggle pin weep hole.

Quality Assurance

Gates develops aftermarket thermostat solutions for integrated housing applications to provide an OE-performance alternative to dealership replacement parts. Part number 34043 is built to meet the temperature control requirements of the listed applications and support reliable cooling system operation.