HomeBelts and Cooling > Thermostat and HousingDorman 902-2077 Engine Coolant Thermostat Housing Assembly - Upper
Part #: 902-2077

Dorman 902-2077 Engine Coolant Thermostat Housing Assembly - Upper

Upper
⚙️ 17 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, SRX, CTS, and STS
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Reliable Engine Coolant Thermostat Housing Assembly for Cadillac Vehicles

The Dorman 902-2077 Engine Coolant Thermostat Housing Assembly is designed specifically for Cadillac CTS, SRX, and STS models. This metal thermostat housing assembly includes a thermostat calibrated to open at 180 degrees Fahrenheit, ensuring precise engine temperature regulation for optimal performance.

  • Durable metal construction with natural finish
  • Includes thermostat and gasket for a complete assembly
  • Designed for Cadillac CTS, SRX, and STS models
  • Thermostat opens at 180°F for accurate temperature control
  • Two mounting holes with 3-inch bolt hole center spacing
  • Flange dimensions: 4" width, 2.75" length, 0.45" thickness
  • Single outlet port and no bleeder hole

Product Details and Specifications

The Dorman 902-2077 thermostat housing assembly is constructed from metal to provide durability and resistance to engine heat and coolant corrosion. It comes with a natural color finish and includes a thermostat, gasket, and o-ring to ensure a proper seal and fit. The assembly features two mounting holes spaced 3 inches apart center-to-center, with flange dimensions optimized for a secure fit. The thermostat is designed to open at 180 degrees Fahrenheit, maintaining the engine's optimal operating temperature. This assembly does not include mounting hardware, so existing bolts should be reused or sourced separately.

Compatible Cadillac Models and Applications

This thermostat housing assembly is compatible with the following Cadillac models:

  • Cadillac CTS
  • Cadillac SRX
  • Cadillac STS

Use this part number 902-2077 when searching for a replacement thermostat housing assembly for these specific vehicles to ensure proper fit and function.

Common Issues Addressed by This Thermostat Housing Assembly

  • Engine overheating due to faulty thermostat housing leaks
  • Coolant leaks caused by damaged or worn thermostat housing gaskets
  • Inconsistent engine temperature regulation from malfunctioning thermostat
  • Corrosion or cracking in original thermostat housing
  • Replacement of thermostat housing assembly during engine cooling system repairs

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Remove the old thermostat housing assembly carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly to ensure a proper seal with the included gasket and o-ring. Since mounting hardware is not included, retain original bolts or acquire appropriate replacements. Torque bolts to manufacturer specifications to prevent leaks. Verify thermostat operation after installation by monitoring engine temperature during initial operation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-2077 thermostat housing assembly undergoes quality inspections to ensure durability and reliable performance. This product includes a gasket and thermostat to provide a complete solution for engine cooling system maintenance. Warranty coverage details can be obtained from the product documentation or Dorman directly.

BrandDorman
Part Number902-2077
Bleeder HoleNo
Bolt Hole Center To Bolt Hole Center3
ColorNatural
Flange Length2.75
Flange Thickness0.45
Flange Width4
Gasket Or Seal IncludedYes
Gasket TypeGasket
Grade TypeRegular
Inside Diameter0.4 in; 1.3 in
MaterialMetal
Mounting Hardware IncludedNo
Mounting Hole Quantity2
Outlet Port Quantity1
Package Contents1 Thermostat Housing; 1 Thermostat; 1 O-Ring
Thermostat IncludedYes
Thermostat Opening Temperature180 Deg. F.

This part fits 17 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009CadillacSRX3.6LV6UpperThermostat housing assembly with included thermostat.
2008CadillacSRX3.6LV6UpperThermostat housing assembly with included thermostat.
2007CadillacCTS3.6LV6N/ALeft Hand Drive (LHD); Includes Thermostat
2007CadillacCTS2.8LV6UpperThermostat housing assembly with included thermostat.
2007CadillacCTS3.6LV6UpperThermostat housing assembly with included thermostat.
2007CadillacSRX3.6LV6UpperThermostat housing assembly with included thermostat.
2007CadillacSTS3.6LV6UpperThermostat housing assembly with included thermostat.
2006CadillacCTS2.8LV6UpperThermostat housing assembly with included thermostat.
2006CadillacCTS3.6LV6UpperThermostat housing assembly with included thermostat.
2006CadillacSRX3.6LV6UpperThermostat housing assembly with included thermostat.
2006CadillacSTS3.6LV6UpperThermostat housing assembly with included thermostat.
2005CadillacCTS2.8LV6UpperThermostat housing assembly with included thermostat.
2005CadillacCTS3.6LV6UpperThermostat housing assembly with included thermostat.
2005CadillacSRX3.6LV6UpperThermostat housing assembly with included thermostat.
2005CadillacSTS3.6LV6UpperThermostat housing assembly with included thermostat.
2004CadillacCTS3.6LV6UpperThermostat housing assembly with included thermostat.
2004CadillacSRX3.6LV6UpperThermostat housing assembly with included 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:

125864683405548818521-1805218085949

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