Dorman 902-5188 Engine Coolant Thermostat Housing Assembly - Water Pump

Overview of Dorman Engine Coolant Thermostat Housing Assembly

The Dorman 902-5188 Engine Coolant Thermostat Housing Assembly is designed specifically for Mini Cooper, Cooper Countryman, and Cooper Paceman models. This assembly includes a thermostat, gasket, O-ring, and sensors to ensure proper engine temperature regulation and cooling system performance.

• Material: Durable black plastic construction
• Includes thermostat with 221°F opening temperature
• Comes with gasket, O-ring, and two sensors for complete installation
• Three mounting holes with precise bolt hole spacing for secure fit
• Flange dimensions: 4.425" length, 3.414" width, 0.654" thickness
• Multiple inside diameter options for versatile coolant flow
• Standard gasket type included for reliable sealing

Detailed Product Description

The Dorman 902-5188 thermostat housing assembly is engineered to meet the cooling system requirements of Mini Cooper, Cooper Countryman, and Cooper Paceman vehicles. Constructed from high-quality plastic, this black housing offers corrosion resistance and durability under typical engine operating conditions. The assembly includes a thermostat calibrated to open at 221 degrees Fahrenheit, ensuring optimal engine temperature control. It features one outlet port and three mounting holes with bolt hole center distances of 2.053", 3.300", and 3.40", providing a precise fit for the specified Mini models. The package contains all necessary components including the thermostat, gasket, O-ring, and two sensors, facilitating a straightforward replacement process.

Common Applications and Issues Addressed

• Replacement of cracked or leaking thermostat housing
• Resolving engine overheating due to thermostat failure
• Fixing coolant leaks caused by worn or damaged gaskets
• Restoring proper coolant flow and temperature regulation
• Addressing sensor malfunctions related to temperature monitoring

Installation Notes and Tips

When installing the Dorman 902-5188 thermostat housing assembly, ensure the engine is cool before beginning work. Use the included gasket and O-ring to prevent coolant leaks. Verify the correct orientation of the thermostat and sensors during installation. Torque mounting bolts to manufacturer specifications to avoid damage. This assembly does not include mounting hardware, so retain original bolts or source replacements as needed.

Quality Assurance and Warranty

Dorman provides this thermostat housing assembly with a focus on fit, form, and function for Mini Cooper, Cooper Countryman, and Cooper Paceman vehicles. The product is manufactured to meet or exceed OEM standards. It includes a standard gasket and quality sensors to maintain system integrity. Warranty coverage details should be confirmed with the point of purchase or Dorman directly.