Dorman 902-5852 Engine Coolant Thermostat Housing Assembly - Water Pump

Overview of Dorman Engine Coolant Thermostat Housing Assembly

The Dorman 902-5852 Engine Coolant Thermostat Housing Assembly is designed for select Mercedes-Benz models, including the CL63 AMG, E63 AMG, and GLS63 AMG. This assembly combines a thermostat and housing to regulate engine temperature efficiently, ensuring optimal performance and preventing overheating.

• Durable black plastic construction for corrosion resistance
• Includes thermostat with 217°F opening temperature
• Three mounting holes with precise bolt hole spacing (2.45", 3.05", 3.12")
• Flange dimensions: 3.06" length, 3.65" width, 0.36" thickness
• Standard gasket type included, no bleeder hole
• Compatible with multiple Mercedes-Benz AMG and luxury models

Detailed Product Description

This Dorman Engine Coolant Thermostat Housing Assembly (part number 902-5852) is engineered with a plastic housing that offers resistance to corrosion and heat, suitable for the demanding conditions of Mercedes-Benz AMG vehicles such as the ML63 AMG and S63 AMG. The assembly includes a thermostat calibrated to open at 217 degrees Fahrenheit, helping maintain the engine’s ideal operating temperature. The housing features three mounting holes with specific bolt hole center-to-center measurements (2.45", 3.05", and 3.12") to ensure a secure fit. Its flange dimensions provide a reliable seal without the need for a bleeder hole, and the standard gasket type supports proper sealing during installation.

Compatible Mercedes-Benz Models

This thermostat housing assembly is compatible with a range of Mercedes-Benz vehicles, including but not limited to:

• CL63 AMG, CL500, CL550
• CLS63 AMG, CLS63 AMG S
• E63 AMG, E63 AMG S, E550
• G63 AMG, GL63 AMG
• GLE63 AMG, GLE63 AMG S
• GLS63 AMG
• ML63 AMG, ML550
• S63 AMG, S63L AMG
• SL63 AMG

Common Issues Addressed by This Thermostat Housing Assembly

• Engine overheating due to faulty thermostat
• Coolant leaks from damaged or cracked housing
• Irregular engine temperature regulation causing performance issues
• Failed thermostat causing poor fuel efficiency
• Corrosion-related housing failure in older assemblies

Installation Notes and Tips

Installation of the Dorman 902-5852 thermostat housing assembly requires removal of the old housing and thermostat. Ensure the engine is cool before beginning work. Clean the mounting surface thoroughly to prevent leaks. Since mounting hardware and gasket are not included, reuse existing hardware if in good condition or source replacements separately. Verify bolt hole alignment using the provided measurements to ensure proper fitment. Proper torque specifications should be followed to avoid damage to the plastic housing.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-5852 thermostat housing assembly undergoes rigorous quality control to ensure durability and reliable performance in Mercedes-Benz vehicles. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship.