HomeBelts and Cooling > Thermostat and HousingDorman 902-895 Engine Coolant Thermostat Housing - Upper
Part #: 902-895

Dorman 902-895 Engine Coolant Thermostat Housing - Upper

Upper
⚙️ 30 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 Mazda, Ranger, B4000, Explorer Sport Trac, Explorer Sport, and Explorer
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Dorman Engine Coolant Thermostat Housing 902-895

The Dorman 902-895 engine coolant thermostat housing is designed for reliable cooling system performance in select Ford and Mazda vehicles. Engineered with durable plastic and precise specifications, this thermostat housing supports efficient coolant flow and temperature regulation.

  • Constructed from durable black plastic for corrosion resistance
  • Includes one water outlet and one O-ring for a secure seal
  • Outlet port diameter measures 1.5 inches for proper coolant flow
  • Features three mounting holes with 0.313-inch diameter for secure installation
  • Housing neck angled at 45 degrees from base to fit specific engine layouts
  • Gasket or seal included to prevent leaks
  • Compatible with Ford B4000, Explorer, Explorer Sport, Explorer Sport Trac, and Ranger models

Detailed Product Description

The Dorman 902-895 engine coolant thermostat housing is a critical component designed to house the thermostat and direct coolant flow within the engine cooling system. Made from high-quality black plastic, it offers resistance to heat and corrosion, ensuring long-term durability. The housing features a 1.5-inch outlet port diameter and a 45-degree neck angle, engineered to match the cooling system design of compatible Ford and Mazda vehicles. This part includes an O-ring and gasket to maintain a tight seal and prevent coolant leaks. While bolts are not included, the housing has three mounting holes with a diameter of 0.313 inches for secure attachment.

Compatible Vehicles and Applications

This thermostat housing is compatible with several Ford and Mazda models, including the Ford B4000, Explorer, Explorer Sport, Explorer Sport Trac, and Ranger. It is designed to replace the original equipment part and restore proper coolant flow and temperature regulation in these vehicles.

  • Prevents coolant leaks caused by damaged or cracked thermostat housings
  • Helps maintain optimal engine temperature by housing the thermostat securely
  • Addresses overheating issues related to faulty or worn thermostat housings
  • Eliminates coolant contamination from external debris
  • Supports efficient coolant circulation to prevent engine damage

Installation Notes and Tips

When installing the Dorman 902-895 thermostat housing, ensure the engine is cool before beginning work. Remove the old housing carefully to avoid damaging surrounding components. Use the included O-ring and gasket to create a proper seal and prevent leaks. Verify that the three mounting holes align correctly and use appropriate bolts (not included) with the specified 0.313-inch diameter. Double-check the 45-degree neck angle orientation to ensure proper fitment with the vehicle’s cooling system.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-895 thermostat housing undergoes rigorous quality control to ensure durability and reliable performance. This part includes a limited warranty covering defects in material and workmanship, providing confidence in its long-term use.

BrandDorman
Part Number902-895
Air Vent (Bleeder Valve)No
Bolts IncludedNo
ColorBlack
Gasket Or Seal IncludedYes
Housing Neck Angle (┬░)45 Degrees From Base
MaterialPlastic
Mounting Hole Diameter0.313
Mounting Hole Quantity3
O Rings IncludedYes
Outlet Port Diameter1.5
Package Contents1 Water Outlet; 1 O-ring
Thermostat IncludedNo

This part fits 30 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2011FordRanger4.0LV6UpperEngine coolant thermostat housing for cooling system.
2010FordRanger4.0LV6UpperEngine coolant thermostat housing for cooling system.
2010MazdaB40004.0LV6UpperEngine coolant thermostat housing for cooling system.
2009FordRanger4.0LV6UpperEngine coolant thermostat housing for cooling system.
2009MazdaB40004.0LV6UpperEngine coolant thermostat housing for cooling system.
2008FordRanger4.0LV6UpperEngine coolant thermostat housing for cooling system.
2008MazdaB40004.0LV6UpperEngine coolant thermostat housing for cooling system.
2007FordRanger4.0LV6UpperEngine coolant thermostat housing for cooling system.
2007MazdaB40004.0LV6UpperEngine coolant thermostat housing for cooling system.
2006FordRanger4.0LV6UpperEngine coolant thermostat housing for cooling system.
2006MazdaB40004.0LV6UpperEngine coolant thermostat housing for cooling system.
2005FordExplorer Sport Trac4.0LV6UpperEngine coolant thermostat housing for cooling system.
2005FordRanger4.0LV6UpperEngine coolant thermostat housing for cooling system.
2005MazdaB40004.0LV6UpperEngine coolant thermostat housing for cooling system.
2004FordExplorer Sport Trac4.0LV6UpperEngine coolant thermostat housing for cooling system.
2004FordRanger4.0LV6UpperEngine coolant thermostat housing for cooling system.
2004MazdaB40004.0LV6UpperEngine coolant thermostat housing for cooling system.
2003FordExplorer Sport4.0LV6UpperEngine coolant thermostat housing for cooling system.
2003FordExplorer Sport Trac4.0LV6UpperEngine coolant thermostat housing for cooling system.
2003FordRanger4.0LV6UpperEngine coolant thermostat housing for cooling system.
2003MazdaB40004.0LV6UpperEngine coolant thermostat housing for cooling system.
2002FordExplorer Sport4.0LV6UpperEngine coolant thermostat housing for cooling system.
2002FordExplorer Sport Trac4.0LV6UpperEngine coolant thermostat housing for cooling system.
2002FordRanger4.0LV6UpperEngine coolant thermostat housing for cooling system.
2002MazdaB40004.0LV6UpperEngine coolant thermostat housing for cooling system.
2001FordExplorerPostal4.0LV6UpperEngine coolant thermostat housing for cooling system.
2001FordExplorer Sport4.0LV6UpperCover; From 7/24/00
2001FordExplorer Sport Trac4.0LV6UpperFrom 7/24/00; Cover
2001FordRanger4.0LV6Upperw/Clip in Sensor; Cover
2001MazdaB40004.0LV6UpperCover; w/Clip in Sensor

* 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:

4L5Z8592AA731281567685286CH5286CO34757TF290

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