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Dorman 902-5881 Engine Coolant Thermostat Housing Assembly
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.
| Brand | Dorman |
| Part Number | 902-5881 |
| Material | Plastic |
| Color | Black |
| Inside Diameter | 0.47 |
| Mounting Hardware Included | No |
| Grade Type | Regular |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 3 |
| Bolt Hole Center To Bolt Hole Center | 2.7 |
| Bolt Hole Center To Bolt Hole Center | 2.8 |
| Gasket Type | Gasket |
| Flange Length | 3.07 |
| Flange Thickness | 0.4 |
| Flange Width | 3.34 |
| Outlet Port Quantity | 1 |
| Bleeder Hole | No |
| Package Contents | 1 gasket; 1 thermostat; 1 thermostat housing; 1 sensor |
| Thermostat Included | Yes |
| Thermostat Opening Temperature | 189 deg. |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2023 | Toyota | Tacoma | 3.5L | V6 | N/A | wo/Trailer Tow Package |
| 2022 | Toyota | Tacoma | 3.5L | V6 | N/A | wo/Trailer Tow Package |
| 2021 | Toyota | Tacoma | 3.5L | V6 | N/A | Cover; wo/Trailer Tow Package; Includes Thermostat |
| 2020 | Toyota | Tacoma | 3.5L | V6 | N/A | Cover; wo/Trailer Tow Package; Includes Thermostat |
| 2019 | Toyota | Tacoma | 3.5L | V6 | N/A | Cover; Includes Thermostat; wo/Trailer Tow Package |
| 2018 | Toyota | Tacoma | 3.5L | V6 | N/A | Cover; Includes Thermostat; wo/Trailer Tow Package |
| 2017 | Toyota | Tacoma | 3.5L | V6 | N/A | Cover; Includes Thermostat; wo/Trailer Tow Package |
| 2016 | Toyota | Tacoma | 3.5L | V6 | N/A | Cover; 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.