HomeBelts and Cooling > Thermostat and HousingGates 34043 Engine Coolant Thermostat
Part #: 34043

Gates 34043 Engine Coolant Thermostat

Integrated Housing Thermostat
⚙️ 10 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Integrated Housing Thermostat
🚗Fitment: Ford, Mazda, and Mercury, Transit Connect, Tribute, Escape, and Mariner
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Overview of Gates Integrated Housing Thermostat 34043

The Gates Integrated Housing Thermostat 34043 is engineered to regulate engine temperature efficiently in select Ford, Mazda, and Mercury vehicles. Designed for reliable cooling system performance, this thermostat ensures optimal engine operation for models like the Ford Escape, Mazda Tribute, and Mercury Mariner.

  • Integrated housing thermostat design for streamlined installation
  • Start to open temperature at 195°F (91°C) for precise engine temperature control
  • Three bolt hole configuration for secure mounting
  • Includes a jiggle pin weep hole to prevent air lock and ensure coolant flow
  • Outlet inside diameters of 0.547 and 1.096 inches for proper coolant passage
  • Outlet outside diameters of 0.745 and 1.308 inches to fit specific hose connections
  • OE performance rating, engineered to meet original equipment standards

Detailed Product Description

The Gates 34043 Integrated Housing Thermostat combines the thermostat and housing into a single unit, simplifying replacement and reducing potential leak points. This part features a start to open temperature of 195°F (91°C), which helps maintain the engine within its optimal operating temperature range. The thermostat includes a jiggle pin weep hole that allows trapped air to escape, preventing air pockets that can cause overheating or inefficient cooling. With three bolt holes, the thermostat housing mounts securely to the engine, ensuring a tight seal. The dual outlet inside and outside diameters accommodate specific coolant hose sizes, making it compatible with the cooling systems of Ford Escape, Mazda Tribute, Mercury Mariner, and Ford Transit Connect models.

About the Integrated Housing Thermostat Product Line

The Gates Integrated Housing Thermostat line is designed to provide a compact, all-in-one solution for engine cooling regulation. By integrating the thermostat and housing, this product line reduces installation complexity and potential failure points compared to separate components. The 34043 model exemplifies this approach, offering precise temperature control and compatibility with multiple vehicle makes and models.

Common Applications and Issues Addressed

  • Replacement for faulty or stuck thermostats causing engine overheating
  • Resolving coolant leaks from damaged or worn thermostat housings
  • Preventing air lock in the cooling system with the jiggle pin weep hole
  • Maintaining proper engine temperature for improved fuel efficiency and emissions
  • Ensuring reliable operation in Ford Escape, Mazda Tribute, Mercury Mariner, and Transit Connect vehicles

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation to avoid burns
  • Verify the gasket or seal is properly seated to prevent coolant leaks
  • Torque the three mounting bolts evenly to manufacturer specifications
  • Check coolant levels and bleed the cooling system to remove air pockets after installation
  • Use the Gates 34043 part number to confirm compatibility with your vehicle model

Quality Assurance and Warranty

The Gates Integrated Housing Thermostat 34043 is manufactured to meet OE performance standards, ensuring reliable operation and durability. Gates products typically come with a limited warranty covering defects in materials and workmanship. For specific warranty details, refer to the product documentation or contact the manufacturer directly.

BrandGates
Part Number34043
PositionIntegrated Housing Thermostat
1
Bolt Hole Quantity3
Check ValveNo
ElectricNo
ElectricNo
Jiggle Pin Weep HoleYes
Jiggle Pin/Check ValveYes
Number of Bolt Holes3
Number of Jiggle Pins/Check Valves1
Number of Seals1
OE Comparison RatingOE Performance
OE ExactNo
Outlet Inside Diameter.547
Outlet Inside Diameter1.096
Outlet Inside Diameter 1 (in).547
Outlet Inside Diameter 2 (in)1.096
Outlet Outside Diameter.745
Outlet Outside Diameter1.308
Outlet Outside Diameter 1 (in).745
Outlet Outside Diameter 2 (in)1.308
Start to Open Temperature91
Start to Open Temperature195
Temperature (C)91
TypeIntegrated Housing Thermostat

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2013FordTransit Connect2.0LL4GASN/A194 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
2012FordTransit Connect2.0LL4GASN/A194 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
2011FordTransit Connect2.0LL4GASN/A194 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
2010FordTransit Connect2.0LL4GASN/A194 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
2008MazdaTribute2.3LL4ELECTRIC/GASN/A194 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
2007FordEscape2.3LL4GASN/AJan. 1 & Newer; W/Sensor; 194 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
2007MercuryMariner2.3LL4ELECTRIC/GASN/AJan. 1 & Newer; W/Sensor; 194 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
2007MercuryMariner2.3LL4GASN/AJan. 1 & Newer; W/Sensor; 194 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
2006MercuryMariner2.3LL4GASN/A194 Degree; OE Temperature; Seal included; Integrated Housing Thermostat
2005MercuryMariner2.3LL4GASN/A194 Degree; OE Temperature; Seal included; Integrated Housing Thermostat

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

3404338689486894L5G 8575 BC4L5Z 8575 AD4L5Z 8575 B512-195512805129586097902-1072HT195-215L35615170A

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.