Dorman 902-5167 Engine Coolant Thermostat Housing Assembly

Reliable Engine Coolant Thermostat Housing Assembly for Audi Models

The Dorman 902-5167 Engine Coolant Thermostat Housing Assembly is designed specifically for Audi A4, A4 Quattro, A6, and A6 Quattro vehicles. This metal thermostat housing assembly ensures proper engine temperature regulation by housing the thermostat that opens at 198 degrees Fahrenheit.

Key Features of Dorman 902-5167 Thermostat Housing

• Constructed from durable metal with a natural finish for corrosion resistance
• Includes one thermostat housing, one O-ring, and one thermostat for a complete assembly
• Thermostat opens at 198 degrees Fahrenheit to maintain optimal engine temperature
• Designed with two mounting holes and precise bolt hole center measurements (2.5, 2.9, and 3 inches) for secure fitment
• Flange dimensions: 3.38 inches length, 2.51 inches width, and 0.325 inches thickness
• Compatible with Audi A4, A4 Quattro, A6, and A6 Quattro models

Detailed Description of the Thermostat Housing Assembly

This Dorman engine coolant thermostat housing assembly (part number 902-5167) is engineered to meet the specifications of select Audi vehicles, including the A4 and A6 series with or without Quattro all-wheel drive. The metal construction provides strength and durability under high-temperature conditions. The included thermostat opens at 198 degrees Fahrenheit, allowing coolant flow to regulate engine temperature effectively. The assembly features a single outlet port and is designed without a bleeder hole, ensuring compatibility with the original cooling system design. Precise flange and mounting hole dimensions guarantee a secure and proper fit during installation.

Common Applications and Issues Addressed

• Replacement for faulty or leaking thermostat housing assemblies in Audi A4 and A6 models
• Resolves engine overheating caused by thermostat failure
• Prevents coolant leaks due to cracked or damaged housing
• Restores proper coolant flow and engine temperature regulation
• Addresses issues related to thermostat sticking or improper opening temperature

Installation Notes and Tips

• Mounting hardware is not included; reuse existing bolts or acquire appropriate replacements
• Ensure gasket or seal surfaces are clean and free of debris before installation
• Use the included O-ring to maintain a proper seal and prevent leaks
• Verify thermostat orientation matches factory specifications for correct operation
• Check coolant levels and system pressure after installation to confirm proper function

Quality Assurance and Warranty Information

Dorman 902-5167 thermostat housing assemblies are manufactured to meet OEM standards for fit and function. While mounting hardware and gaskets are not included, the assembly comes with a thermostat and O-ring to ensure a reliable seal. Dorman products typically include a limited warranty against defects in material and workmanship; please refer to Dorman's official warranty policy for specific coverage details.