Four Seasons 85966 Engine Coolant Thermostat / Water Outlet Assembly

Overview of Four Seasons Thermostat Housing 85966

The Four Seasons Thermostat Housing 85966 is engineered for reliable engine cooling performance in select Chrysler and Mercedes-Benz vehicles. This assembly includes both the thermostat and water outlet, designed to meet or exceed OEM specifications for a precise fit and function.

• Constructed from durable aluminum for corrosion resistance
• Includes thermostat and gasket for complete installation
• Inside diameter of 1.450 inches and inlet diameter of 1.440 inches
• Maximum height of 2.590 inches with 2 mounting holes
• Bolt hole center-to-center distance of 3.34 inches
• Compatible with various Mercedes-Benz AMG and Chrysler models

Four Seasons Thermostat Housing Product Line

The Thermostat Housing line by Four Seasons focuses on engine coolant components designed to provide reliable temperature regulation and coolant flow. This product line integrates the thermostat within the housing assembly, simplifying replacement and ensuring compatibility with specific vehicle applications. The 85966 part is a water outlet type housing that supports efficient engine cooling system operation.

Detailed Product Description

This engine coolant thermostat and water outlet assembly is crafted from aluminum, offering strength and resistance to corrosion. The included thermostat and gasket ensure a complete replacement solution, reducing the risk of leaks and overheating. With precise dimensions such as a 1.450-inch inside diameter and 1.440-inch inlet diameter, this housing fits securely on compatible engines. The two mounting holes spaced 3.34 inches apart provide stable attachment, maintaining proper coolant flow and temperature control.

Compatible Vehicles and Applications

• Designed for Chrysler Crossfire models
• Compatible with Mercedes-Benz AMG series including C32 AMG, C43 AMG, C55 AMG, CL55 AMG, E55 AMG, G55 AMG, ML55 AMG, S55 AMG, SL55 AMG, and SLK32 AMG
• Fits Mercedes-Benz models such as C240, C280, C320, CLK320, CLK430, CLS500, E320, E420, E430, E500, G500, ML320, ML350, ML430, ML500, R500, S350, S430, S500, SL500

Common Issues Addressed by This Thermostat Housing

• Engine overheating due to faulty thermostat or housing leaks
• Coolant leaks from damaged or corroded thermostat housing
• Inconsistent engine temperature regulation affecting performance
• Replacement of worn or cracked water outlet assemblies
• Preventing coolant system failures in Mercedes-Benz and Chrysler vehicles

Installation Notes and Tips

• Ensure engine is cool before beginning installation to avoid burns
• Replace the included gasket to prevent coolant leaks
• Torque mounting bolts to manufacturer specifications for secure fit
• Inspect surrounding hoses and coolant system components during replacement
• Verify proper thermostat operation after installation

Quality Assurance and Warranty

The Four Seasons Thermostat Housing 85966 meets or exceeds OEM standards, ensuring reliable performance and fitment. Manufactured with high-quality aluminum and including all necessary seals, this part supports long-term durability. Warranty coverage details should be confirmed with the distributor or manufacturer.