Four Seasons 85965 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for Audi and Volkswagen

The Four Seasons 85965 Engine Coolant Thermostat Housing is designed to maintain optimal engine temperature for select Audi and Volkswagen models. This thermostat housing includes a thermostat and gasket, ensuring a complete solution for your vehicle's cooling system needs.

• Constructed from durable black plastic material
• Includes thermostat and gasket for easy installation
• Two mounting holes with 2.75-inch bolt hole center spacing
• Inlet port diameter of 1.276 inches for precise fit
• Flange thickness of 0.395 inches for secure sealing
• Overall height of 7 inches to match OEM specifications
• Meets or exceeds OEM standards for quality and fit

Product Details and Specifications

This Four Seasons Thermostat Housing (part number 85965) is engineered to fit a range of Audi and Volkswagen vehicles, including the Audi A3, A3 Quattro, and TT, as well as Volkswagen Golf, Golf City, GTI, Jetta, Jetta City, Passat, and Eos models. The housing is made from high-quality plastic, providing resistance to corrosion and heat. It features two mounting holes spaced 2.75 inches apart, ensuring a secure and accurate fit. The included thermostat and gasket simplify replacement, reducing installation time and potential leaks. The inlet port diameter of 1.276 inches and flange thickness of 0.395 inches are designed to match OEM dimensions, maintaining proper coolant flow and sealing integrity.

About the Four Seasons Thermostat Housing Product Line

The Four Seasons Thermostat Housing product line focuses on delivering reliable engine coolant components that meet or exceed OEM specifications. This line includes thermostat housings designed to integrate seamlessly with the vehicle’s cooling system, providing consistent temperature regulation and durability. The 85965 model exemplifies this approach by combining a thermostat housing with an included thermostat and gasket, offering a comprehensive replacement part for compatible Audi and Volkswagen vehicles.

Common Applications and Issues Addressed

• Replacement of cracked or leaking thermostat housing
• Resolving engine overheating due to faulty thermostat housing
• Preventing coolant leaks that can cause engine damage
• Restoring proper coolant flow and temperature regulation
• Upgrading worn or damaged cooling system components

Installation Notes and Tips

When installing the Four Seasons 85965 thermostat housing, ensure the engine is cool before beginning work. Remove the old housing carefully to avoid damaging surrounding components. Use the included gasket to create a proper seal and prevent leaks. Tighten mounting bolts evenly to the manufacturer’s torque specifications. Verify that the thermostat is correctly seated within the housing before final assembly. After installation, refill the cooling system and bleed any air pockets to maintain optimal performance.

Quality Assurance and Warranty

This thermostat housing meets or exceeds OEM quality standards, ensuring reliable fit and function. Four Seasons provides confidence in their products through rigorous testing and quality control. While specific warranty details may vary, Four Seasons parts typically come with a limited warranty against defects in material and workmanship, supporting long-term durability and performance.