HomeBelts and Cooling > Thermostat and HousingDorman 902-860 Engine Coolant Thermostat Housing Assembly
Part #: 902-860

Dorman 902-860 Engine Coolant Thermostat Housing Assembly

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⚙️ 22 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
🚗Fitment: Ford and Mercury, Explorer, Explorer Sport Trac, and Mountaineer
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Reliable Engine Coolant Thermostat Housing Assembly for Ford and Mercury

The Dorman 902-860 Engine Coolant Thermostat Housing Assembly is designed to maintain optimal engine temperature for Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer models. This assembly includes all necessary components to ensure proper coolant flow and temperature regulation.

  • Material: Durable black plastic construction
  • Includes thermostat with 190°F opening temperature
  • Comes with upper and lower housing and gasket for secure sealing
  • Features three mounting holes and three outlet ports for precise fitment
  • Gasket included to prevent leaks and ensure a tight seal

Product Details and Specifications

The Dorman 902-860 thermostat housing assembly is made from high-quality plastic designed to withstand engine heat and pressure. It includes both upper and lower housings, a thermostat calibrated to open at 190 degrees Fahrenheit, and a gasket to ensure a leak-free installation. The assembly features three mounting holes and three outlet ports, matching the original equipment specifications for Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer vehicles. This part does not include mounting hardware but comes ready with all essential components for a complete replacement.

Compatible Vehicles and Applications

This engine coolant thermostat housing assembly is compatible with the following vehicles:

  • Ford Explorer
  • Ford Explorer Sport Trac
  • Mercury Mountaineer

Use this assembly to replace worn or damaged thermostat housings in these models to maintain proper engine cooling system performance.

Common Issues Addressed by This Thermostat Housing Assembly

  • Engine overheating due to faulty thermostat housing
  • Coolant leaks from cracked or damaged housing
  • Irregular engine temperature regulation
  • Failed thermostat causing poor coolant flow
  • Corrosion or wear in original housing components

Installation Notes and Tips

  • Ensure engine is cool before beginning installation
  • Remove old thermostat housing carefully to avoid damaging mounting surfaces
  • Use the included gasket to prevent coolant leaks
  • Verify the thermostat opens at 190°F for proper engine temperature control
  • Check all mounting holes and outlet ports align correctly with vehicle connections

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-860 thermostat housing assembly undergoes rigorous quality control to ensure durability and reliable performance. This product includes a limited warranty against defects in material and workmanship, providing confidence in your replacement part.

BrandDorman
Part Number902-860
Bleeder HoleNo
ColorBlack
Gasket Or Seal IncludedYes
Gasket TypeGasket
Grade TypeRegular
MaterialPlastic
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Outlet Port Quantity3
Package ContentsUpper Housing; Lower Housing; Thermostat; Gasket; Upper and Lower Housing Bolts; Sensor Plug; Sensor Clip
Thermostat IncludedYes
Thermostat Opening Temperature190 Deg. F.

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010FordExplorer4.0LV6N/APlastic Housing; w/Cover
2010FordExplorer Sport Trac4.0LV6N/APlastic Housing; w/Cover
2010MercuryMountaineer4.0LV6N/APlastic Housing; w/Cover
2009FordExplorer4.0LV6N/APlastic Housing; w/Cover
2009FordExplorer Sport Trac4.0LV6N/APlastic Housing; w/Cover
2009MercuryMountaineer4.0LV6N/APlastic Housing; w/Cover
2008FordExplorer4.0LV6N/APlastic Housing; w/Cover
2008FordExplorer Sport Trac4.0LV6N/APlastic Housing; w/Cover
2008MercuryMountaineer4.0LV6N/APlastic Housing; w/Cover
2007FordExplorer4.0LV6N/APlastic Housing; w/Cover
2007FordExplorer Sport Trac4.0LV6N/APlastic Housing; w/Cover
2007MercuryMountaineer4.0LV6N/APlastic Housing; w/Cover
2006FordExplorer4.0LV6N/APlastic Housing; w/Cover
2006MercuryMountaineer4.0LV6N/APlastic Housing; w/Cover
2005FordExplorer4.0LV6N/APlastic Housing; w/Cover
2005MercuryMountaineer4.0LV6N/APlastic Housing; w/Cover
2004FordExplorer4.0LV6N/APlastic Housing; w/Cover
2004MercuryMountaineer4.0LV6N/APlastic Housing; w/Cover
2003FordExplorer4.0LV6N/APlastic Housing; w/Cover
2003MercuryMountaineer4.0LV6N/APlastic Housing; w/Cover
2002FordExplorer4.0LV6N/APlastic Housing; w/Cover
2002MercuryMountaineer4.0LV6N/APlastic Housing; w/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:

2860DL2L2Z8592AA7293 Kit7293KIT72957312Kit8156728513985140902860 CO34739KGT-7296-NTA2860TF293

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