Dorman 902-5177 Engine Coolant Thermostat Housing Assembly

Overview of Dorman Engine Coolant Thermostat Housing Assembly

The Dorman 902-5177 Engine Coolant Thermostat Housing Assembly is designed for select Mercedes-Benz models including C180, C200, C250, E200, E250, E500, SLK200, and SLK250. This assembly combines a thermostat, housing, gasket, and sensors to ensure precise engine temperature regulation and reliable cooling system performance.

• Material: Durable black plastic construction
• Includes thermostat with 217°F opening temperature
• Comes with gasket and two sensors for complete installation
• Features three outlet ports and five mounting holes
• Flange dimensions: 5.2 inches length, 2.59 inches width, 0.508 inches thickness
• Inside diameter of 0.987 inches for proper coolant flow
• Compatible with multiple Mercedes-Benz models

Detailed Product Description

The Dorman 902-5177 thermostat housing assembly is engineered to meet the cooling system requirements of various Mercedes-Benz vehicles. Constructed from high-quality plastic, the housing offers corrosion resistance and durability under typical engine operating conditions. The included thermostat opens at 217 degrees Fahrenheit, helping maintain optimal engine temperature by regulating coolant flow. This assembly includes a gasket to ensure a secure seal and prevent leaks, along with two sensors to monitor temperature and system performance. The housing features five mounting holes with multiple bolt hole center distances (ranging from 1.382 to 2.999 inches) to ensure proper fitment and secure attachment.

Compatible Mercedes-Benz Models and Applications

This engine coolant thermostat housing assembly is compatible with the following Mercedes-Benz models: C180, C200, C250, E200, E250, E500, SLK200, and SLK250. It is designed to replace original equipment parts and restore proper cooling system function in these vehicles.

Common Issues Addressed by This Thermostat Housing Assembly

• Engine overheating due to faulty thermostat or housing leaks
• Coolant leaks caused by damaged or worn thermostat housing gaskets
• Inaccurate temperature readings from malfunctioning sensors
• Poor engine performance related to improper coolant flow
• Corrosion or cracking of original thermostat housing components

Installation Notes and Tips

Installation of the Dorman 902-5177 thermostat housing assembly requires removal of the old housing and thermostat. Ensure the engine is cool before beginning work. Use the included gasket to create a proper seal and prevent coolant leaks. Note that mounting hardware is not included, so original bolts should be reused or replaced as needed. Verify sensor connections are secure and properly routed. After installation, refill the cooling system and bleed air to avoid overheating.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 902-5177 thermostat housing assembly undergoes quality checks to ensure durability and reliable performance. This product includes a gasket and sensors to provide a complete solution for cooling system repairs. Warranty coverage details can be obtained from the product documentation or manufacturer.