HomeBelts and Cooling > Thermostat and HousingDorman 902-5881 Engine Coolant Thermostat Housing Assembly
Part #: 902-5881

Dorman 902-5881 Engine Coolant Thermostat Housing Assembly

⚙️ 8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Tacoma
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Reliable Engine Coolant Thermostat Housing Assembly for Toyota Tacoma

The Dorman 902-5881 Engine Coolant Thermostat Housing Assembly is designed specifically for Toyota Tacoma models, providing a precise fit and dependable performance. This assembly includes a thermostat, housing, gasket, and sensor to ensure your engine cooling system operates efficiently.

Key Features of Dorman 902-5881 Thermostat Housing Assembly

  • Constructed from durable black plastic material for corrosion resistance
  • Includes a thermostat calibrated to open at 189 degrees Fahrenheit
  • Comes with a gasket to ensure a secure, leak-free seal
  • Features one outlet port and three mounting holes for proper installation
  • Flange dimensions: 3.07 inches length, 3.34 inches width, and 0.4 inches thickness
  • Compatible with Toyota Tacoma models requiring a 0.47-inch inside diameter thermostat housing

Detailed Product Description

This Dorman Engine Coolant Thermostat Housing Assembly (part number 902-5881) is engineered to meet the specifications of Toyota Tacoma vehicles. The assembly includes a thermostat that opens at 189°F, helping regulate engine temperature effectively. The black plastic housing offers resistance to corrosion and heat, extending the life of the cooling system components. The included gasket ensures a tight seal between the housing and engine block, preventing coolant leaks. With three mounting holes spaced approximately 2.7 to 2.8 inches apart, installation aligns precisely with factory specifications. The assembly also features a single outlet port and does not include a bleeder hole.

Common Applications and Issues Addressed

  • Replacement for faulty or leaking thermostat housing assemblies on Toyota Tacoma
  • Resolves engine overheating caused by thermostat failure
  • Prevents coolant leaks due to cracked or damaged housing
  • Restores proper coolant flow and temperature regulation
  • Addresses sensor-related temperature reading issues with included sensor

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid injury from hot coolant. Remove the old thermostat housing carefully to prevent damage to surrounding components. Clean the mounting surface thoroughly before installing the new gasket and housing assembly. Torque mounting bolts to manufacturer specifications to avoid leaks. Note that mounting hardware is not included with this assembly and must be reused or purchased separately.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-5881 thermostat housing assembly undergoes rigorous quality checks to ensure durability and reliable performance. This product includes a gasket and thermostat to provide a complete solution for your Toyota Tacoma cooling system needs.

BrandDorman
Part Number902-5881
MaterialPlastic
ColorBlack
Inside Diameter0.47
Mounting Hardware IncludedNo
Grade TypeRegular
Gasket Or Seal IncludedYes
Mounting Hole Quantity3
Bolt Hole Center To Bolt Hole Center2.7
Bolt Hole Center To Bolt Hole Center2.8
Gasket TypeGasket
Flange Length3.07
Flange Thickness0.4
Flange Width3.34
Outlet Port Quantity1
Bleeder HoleNo
Package Contents1 gasket; 1 thermostat; 1 thermostat housing; 1 sensor
Thermostat IncludedYes
Thermostat Opening Temperature189 deg.

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2023ToyotaTacoma3.5LV6N/Awo/Trailer Tow Package
2022ToyotaTacoma3.5LV6N/Awo/Trailer Tow Package
2021ToyotaTacoma3.5LV6N/ACover; wo/Trailer Tow Package; Includes Thermostat
2020ToyotaTacoma3.5LV6N/ACover; wo/Trailer Tow Package; Includes Thermostat
2019ToyotaTacoma3.5LV6N/ACover; Includes Thermostat; wo/Trailer Tow Package
2018ToyotaTacoma3.5LV6N/ACover; Includes Thermostat; wo/Trailer Tow Package
2017ToyotaTacoma3.5LV6N/ACover; Includes Thermostat; wo/Trailer Tow Package
2016ToyotaTacoma3.5LV6N/ACover; Includes Thermostat; wo/Trailer Tow Package

* 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:

1603131060890-189

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