HomeBelts and Cooling > Thermostat and HousingDorman 902-733 Engine Coolant Thermostat Housing Assembly
Part #: 902-733

Dorman 902-733 Engine Coolant Thermostat Housing Assembly

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⚙️ 147 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mazda, Lincoln, and Mercury, Transit Connect, Fusion, Escape, Ranger, 5, 3, 3 Sport, 6, EcoSport, MKZ, CX-7, Focus, Tribute, Mariner, Milan, B2300, MX-5, and MX-5 Miata
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Reliable Engine Coolant Thermostat Housing Assembly

The Dorman 902-733 Engine Coolant Thermostat Housing Assembly is designed to maintain optimal engine temperature for select Ford, Lincoln, Mazda, and Mercury vehicles. This assembly includes a thermostat calibrated to open at 180 degrees Fahrenheit, ensuring efficient coolant flow and engine performance.

  • Durable black plastic construction for corrosion resistance
  • Includes thermostat and gasket for a complete replacement
  • Designed with three mounting holes for secure installation
  • Flange dimensions: 2.75" length, 3.31" width, 0.46" thickness
  • Compatible with multiple models including Ford Escape, Mazda MX-5 Miata, and Lincoln MKZ

Product Details and Specifications

This engine coolant thermostat housing assembly by Dorman features a plastic housing that resists corrosion and heat damage. The included thermostat opens at 180°F to regulate coolant flow effectively. The assembly comes with a gasket to ensure a proper seal and prevent leaks. It has one outlet port and three mounting holes with precise bolt hole center measurements (2.07 in, 1.88 in, and 2.96 in) for accurate fitment. The inside diameters of the ports are 1.1 inches and 0.56 inches, accommodating the coolant flow requirements of the engine. This part is designed for regular grade use and does not include mounting hardware.

Compatible Vehicles and Applications

This Dorman 902-733 thermostat housing assembly is compatible with a range of Ford, Lincoln, Mazda, and Mercury models. It is suitable for vehicles such as the Ford Escape, Focus, Fusion, Ranger, Transit Connect, and EcoSport; Lincoln MKZ and Milan; Mazda MX-5 Miata and CX-7; and Mercury Mariner and Tribute. This part is ideal for owners seeking a direct replacement for the original thermostat housing assembly to maintain proper engine cooling system function.

  • Prevents engine overheating by regulating coolant temperature
  • Resolves coolant leaks caused by damaged or cracked housing
  • Restores proper thermostat operation for efficient engine warm-up
  • Eliminates coolant flow restrictions due to faulty housing
  • Addresses engine temperature fluctuations and related performance issues

Installation Notes and Tips

When installing the Dorman 902-733 thermostat housing assembly, ensure the engine is cool before beginning work. Remove the old thermostat housing carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly before placing the new gasket and housing. Torque the mounting bolts evenly to the manufacturer's specifications to prevent leaks. Since mounting hardware is not included, reuse the original bolts or acquire appropriate replacements. Verify proper coolant levels and check for leaks after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-733 thermostat housing assembly undergoes quality inspections to ensure durability and reliable performance. This product includes a gasket and thermostat to provide a comprehensive solution for engine cooling system maintenance. Please refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number902-733
Bleeder HoleNo
Bolt Hole Center To Bolt Hole Center2.07 in; 1.88 in; 2.96 in
ColorBlack
Flange Length2.75
Flange Thickness0.46
Flange Width3.31
Gasket Or Seal IncludedYes
Gasket TypeGasket
Grade TypeRegular
Inside Diameter1.1 in; 0.56 in
MaterialPlastic
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Outlet Port Quantity1
Package Contents1 Thermostat Housing; 1 Thermostat Assembly
Thermostat IncludedYes
Thermostat Opening Temperature180 Deg. F.

This part fits 147 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2022FordRanger2.5LL4GASN/AOriginal Plastic Design
2022FordTransit Connect2.5LL4N/AOriginal Plastic Design
2021FordRanger2.5LL4GASN/AOriginal Plastic Design
2021FordTransit Connect2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2020FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2020FordRanger2.5LL4GASN/AOriginal Plastic Design
2020FordTransit Connect2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2019FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2019FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2019FordRanger2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2019FordTransit Connect2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2018FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2018FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2018FordRanger2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2018FordTransit Connect2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2017FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2017FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2017FordRanger2.5LL4N/ACover; Includes Thermostat; wo/Sensor
2017FordTransit Connect2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2017Mazda52.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2016FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2016FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2016FordRanger2.5LL4N/ACover; Includes Thermostat; wo/Sensor
2016FordTransit Connect2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2016Mazda52.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2015FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2015FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2015FordRanger2.5LL4N/ACover; Includes Thermostat; wo/Sensor
2015FordTransit Connect2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2015Mazda52.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2014FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2014FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2014FordRanger2.5LL4N/ACover; Includes Thermostat; wo/Sensor
2014FordTransit Connect2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2014Mazda52.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2013FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2013FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2013FordRanger2.5LL4N/ACover; Includes Thermostat; wo/Sensor
2013Mazda32.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2013Mazda32.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2013Mazda3 Sport2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2013Mazda52.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2013Mazda62.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012FordEcoSport2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2012FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012FordRanger2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2012LincolnMKZ2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012Mazda32.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012Mazda32.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012Mazda3 Sport2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012Mazda52.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012Mazda62.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012MazdaCX-72.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2012MazdaCX-72.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011FordEcoSport2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2011FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011FordFocus2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2011FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011FordRanger2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2011LincolnMKZ2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011Mazda32.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011Mazda32.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011Mazda3 Sport2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011Mazda62.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011MazdaCX-72.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011MazdaCX-72.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011MazdaTribute2.5LL4N/ACover; Includes Thermostat; wo/Sensor
2011MercuryMariner2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2011MercuryMilan2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010FordEcoSport2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2010FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010FordFocus2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2010FordFusion2.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010FordFusion2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010FordRanger2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2010Mazda32.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010Mazda32.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010Mazda3 Sport2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010Mazda62.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010MazdaB23002.3LL4N/ACover; wo/Sensor; Includes Thermostat
2010MazdaCX-72.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010MazdaCX-72.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010MazdaTribute2.5LL4N/ACover; Includes Thermostat; wo/Sensor
2010MercuryMariner2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2010MercuryMilan2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2009FordEcoSport2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2009FordEscape2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2009FordFocus2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2009FordFusion2.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2009FordRanger2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2009Mazda32.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2009Mazda62.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2009MazdaB23002.3LL4N/ACover; wo/Sensor; Includes Thermostat
2009MazdaCX-72.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2009MazdaTribute2.5LL4N/ACover; Includes Thermostat; wo/Sensor
2009MercuryMariner2.5LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2009MercuryMilan2.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2008FordEcoSport2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2008FordEscape2.3LL4ELECTRIC/GASN/AEngine coolant thermostat housing assembly with integrated cover.
2008FordFocus2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2008FordFusion2.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2008FordRanger2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2008Mazda32.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2008Mazda62.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2008MazdaB23002.3LL4N/ACover; wo/Sensor; Includes Thermostat
2008MazdaCX-72.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2008MazdaTribute2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2008MercuryMariner2.3LL4ELECTRIC/GASN/AEngine coolant thermostat housing assembly with integrated cover.
2008MercuryMilan2.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2007FordEcoSport2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2007FordEscape2.3LL4ELECTRIC/GASN/AEngine coolant thermostat housing assembly with integrated cover.
2007FordFocus2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2007FordFocus2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2007FordFusion2.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2007FordRanger2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2007Mazda32.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2007Mazda62.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2007MazdaB23002.3LL4N/ACover; wo/Sensor; Includes Thermostat
2007MazdaCX-72.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2007MercuryMariner2.3LL4ELECTRIC/GASN/AEngine coolant thermostat housing assembly with integrated cover.
2007MercuryMilan2.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2006FordEcoSport2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2006FordEscape2.3LL4ELECTRIC/GASN/AEngine coolant thermostat housing assembly with integrated cover.
2006FordFocus2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2006FordFocus2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2006FordFusion2.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2006Mazda62.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2006MazdaB23002.3LL4N/ACover; wo/Sensor; Includes Thermostat
2006MazdaMX-52.0LL4N/ACover; Includes Thermostat; From 3/08/06
2006MazdaMX-5 Miata2.0LL4N/ACover; Includes Thermostat; From 3/08/06
2006MazdaTribute2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2006MercuryMariner2.3LL4ELECTRIC/GASN/AEngine coolant thermostat housing assembly with integrated cover.
2006MercuryMilan2.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2005FordEcoSport2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2005FordEscape2.3LL4ELECTRIC/GASN/AEngine coolant thermostat housing assembly with integrated cover.
2005FordFocus2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2005FordFocus2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2005Mazda62.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2005MazdaB23002.3LL4N/ACover; wo/Sensor; Includes Thermostat
2005MazdaTribute2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2004FordEcoSport2.0LL4N/ACover; Includes Thermostat; wo/Sensor
2004FordFocus2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2004Mazda62.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.
2004MazdaB23002.3LL4N/ACover; wo/Sensor; Includes Thermostat
2003FordFocus2.3LL4N/ACover; Includes Thermostat; wo/Sensor
2003Mazda62.3LL4N/AEngine coolant thermostat housing assembly with integrated cover.

* 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:

143-08841F7015171340433M4Z8575AB48689512-18551280728685689KGT-512-185-NTSK902733TF286

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