HomeBelts and Cooling > Thermostat and HousingDorman 902-5860 Engine Coolant Thermostat Housing - Inner
Part #: 902-5860

Dorman 902-5860 Engine Coolant Thermostat Housing - Inner

Inner
⚙️ 49 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota and Lexus, Highlander, RX400h, Solara, ES330, RX330, Camry, Sienna, Avalon, RX300, and ES300
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Overview of Dorman Engine Coolant Thermostat Housing 902-5860

The Dorman 902-5860 engine coolant thermostat housing is designed for reliable cooling system performance in select Lexus and Toyota vehicles. Crafted from durable metal with a natural finish, this thermostat housing supports efficient engine temperature regulation for models like the Toyota Camry and Lexus RX330.

  • Constructed from sturdy metal material for durability
  • Natural color finish for corrosion resistance
  • Multiple bolt hole centers ranging from 20.33 to 32.3 mm for precise fitment
  • Outlet port diameter of 0.996 inches and inlet port diameters of 0.316 and 0.669 inches
  • Flange thickness of 0.246 inches ensuring secure mounting
  • Includes one thermostat housing; gasket, bolts, and thermostat not included
  • Compatible with various Lexus and Toyota models including Avalon, Camry, ES300, Highlander, RX300, RX330, RX400h, Sienna, and Solara

Detailed Product Description

The Dorman 902-5860 thermostat housing is engineered to meet the specifications required by several Lexus and Toyota vehicles. Its metal construction provides strength and resistance to heat and pressure within the engine cooling system. The housing features multiple mounting hole centers, allowing for a precise and secure installation. The outlet port diameter of just under one inch and dual inlet port diameters accommodate proper coolant flow, maintaining optimal engine temperature. This part does not include a thermostat, gasket, bolts, or O-rings, so these components should be sourced separately to complete the installation.

Compatible Vehicles and Applications

  • Designed for Lexus models: ES300, ES330, RX300, RX330, RX400h
  • Compatible with Toyota models: Avalon, Camry, Highlander, Sienna, Solara
  • Ideal for engine coolant system repairs requiring a replacement thermostat housing
  • Suitable for addressing coolant leaks or housing damage in specified vehicles

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation to avoid burns
  • Inspect and replace the thermostat, gasket, and mounting bolts as needed since they are not included
  • Clean the mounting surface thoroughly to prevent leaks
  • Torque bolts to manufacturer specifications to avoid warping or damage
  • Verify proper coolant flow after installation by running the engine and checking for leaks

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 902-5860 thermostat housing undergoes quality checks to ensure durability and performance in demanding engine environments. While this product does not include a thermostat or seals, it is backed by Dorman's limited warranty against defects in material and workmanship. Refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number902-5860
Air Vent (Bleeder Valve)No
Bolt Hole Center To Bolt Hole Center20.33
Bolt Hole Center To Bolt Hole Center26.35
Bolt Hole Center To Bolt Hole Center28.8
Bolt Hole Center To Bolt Hole Center31.24
Bolt Hole Center To Bolt Hole Center31.4
Bolt Hole Center To Bolt Hole Center32.3
Bolts IncludedNo
ColorNatural
Flange Thickness0.246
Gasket Or Seal IncludedNo
Height4.028
Inlet Port Diameter0.316
Inlet Port Diameter0.669
MaterialMetal
Mounting Hole Diameter0.284
Mounting Hole Quantity10
O Rings IncludedNo
Outlet Port Diameter0.996
Package Contents1 Thermostat Housing
Thermostat IncludedNo

This part fits 49 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010ToyotaHighlander3.3LV6InnerHousing
2009ToyotaHighlander3.3LV6InnerHousing
2008LexusRX400h3.3LV6InnerHousing
2008ToyotaHighlander3.3LV6InnerHousing
2008ToyotaSolara3.3LV6InnerHousing
2007LexusRX400h3.3LV6InnerHousing
2007ToyotaHighlander3.3LV6InnerHousing
2007ToyotaSolara3.3LV6InnerHousing
2006LexusES3303.3LV6InnerHousing
2006LexusRX3303.3LV6InnerHousing
2006LexusRX400h3.3LV6InnerHousing
2006ToyotaCamry3.0LV6InnerHousing
2006ToyotaCamry3.3LV6InnerHousing
2006ToyotaHighlander3.3LV6InnerHousing
2006ToyotaSienna3.3LV6InnerHousing
2006ToyotaSolara3.3LV6InnerHousing
2005LexusES3303.3LV6InnerHousing
2005LexusRX3303.3LV6InnerHousing
2005ToyotaCamry3.0LV6InnerHousing
2005ToyotaCamry3.3LV6InnerHousing
2005ToyotaHighlander3.3LV6InnerHousing
2005ToyotaSienna3.3LV6InnerHousing
2005ToyotaSolara3.3LV6InnerHousing
2004LexusES3303.3LV6InnerHousing
2004LexusRX3303.3LV6InnerHousing
2004ToyotaAvalon3.0LV6InnerHousing
2004ToyotaCamry3.0LV6InnerHousing
2004ToyotaCamry3.3LV6InnerHousing
2004ToyotaHighlander3.3LV6InnerHousing
2004ToyotaSienna3.3LV6InnerHousing
2004ToyotaSolara3.3LV6InnerHousing
2003LexusRX3003.0LV6InnerHousing
2003ToyotaAvalon3.0LV6InnerHousing
2003ToyotaHighlander3.0LV6InnerHousing
2003ToyotaSienna3.0LV6InnerHousing
2002LexusRX3003.0LV6InnerHousing
2002ToyotaAvalon3.0LV6InnerHousing
2002ToyotaHighlander3.0LV6InnerHousing
2002ToyotaSienna3.0LV6InnerHousing
2001LexusES3003.0LV6InnerHousing; w/Variable Valve Timing (VVT); Cover
2001LexusRX3003.0LV6InnerHousing
2001ToyotaAvalon3.0LV6InnerHousing
2001ToyotaHighlander3.0LV6InnerHousing
2001ToyotaSienna3.0LV6InnerHousing
2000LexusES3003.0LV6InnerHousing; w/Variable Valve Timing (VVT); Cover
2000LexusRX3003.0LV6InnerHousing
2000ToyotaAvalon3.0LV6InnerHousing
1999LexusES3003.0LV6InnerHousing; w/Variable Valve Timing (VVT); Cover
1999LexusRX3003.0LV6InnerHousing

* 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:

163230A02086035CH7035

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