Four Seasons 85690 Engine Coolant Thermostat Housing

Overview of Four Seasons Thermostat Housing 85690

The Four Seasons Thermostat Housing 85690 is designed for reliable engine cooling system performance in select Ford and Mazda vehicles. This integrated thermostat housing includes a thermostat and gasket, ensuring a complete solution for maintaining optimal engine temperature.

• Material: Durable plastic construction
• Includes thermostat and gasket for easy installation
• Outlet port diameter: 32.5 mm
• Inlet port diameter: 1.124 inches
• Three mounting holes with 1.98 inch bolt hole center spacing
• Flange thickness: 0.456 inches
• Overall height: 3.207 inches
• Non-symmetrical base design
• Meets or exceeds OEM specifications
• Style: Integrated thermostat housing

About the Four Seasons Thermostat Housing Product Line

The Four Seasons Thermostat Housing product line focuses on engine coolant components engineered to meet or exceed original equipment manufacturer standards. This line provides integrated thermostat housings designed for precise fit and function, reducing the risk of coolant leaks and ensuring consistent engine temperature regulation. The 85690 model is part of this line, offering a plastic housing with included thermostat and gasket for Ford and Mazda vehicles.

Detailed Product Description

The Four Seasons 85690 thermostat housing is constructed from durable plastic, providing corrosion resistance and long service life. It features an integrated thermostat and gasket, simplifying replacement and ensuring a proper seal. The housing includes three mounting holes spaced 1.98 inches apart center-to-center, designed for secure attachment. The outlet port diameter measures 32.5 mm, while the inlet port diameter is 1.124 inches, accommodating specific coolant flow requirements. With an overall height of 3.207 inches and a flange thickness of 0.456 inches, this housing fits select Ford and Mazda models including the B2300, F-100 Ranger, Focus, and Ranger. The non-symmetrical base design is tailored for precise installation and compatibility.

Common Applications and Issues Addressed

• Replacement for cracked or leaking thermostat housings
• Resolving engine overheating due to thermostat failure
• Fixing coolant leaks caused by worn or damaged gaskets
• Restoring proper coolant flow in Ford Ranger and Mazda B2300 models
• Maintaining engine temperature regulation in Ford F-100 Ranger and Focus vehicles

Installation Notes and Tips

• Ensure the engine is cool before beginning installation
• Use the included gasket to prevent coolant leaks
• Torque mounting bolts to manufacturer specifications
• Inspect surrounding hoses and connections for wear during replacement
• Verify proper thermostat operation after installation

Quality Assurance and Warranty

This Four Seasons thermostat housing meets or exceeds OEM standards for fit, form, and function. The integrated thermostat and included gasket provide a reliable seal and consistent engine temperature control. Four Seasons products typically come with a limited warranty against defects in materials and workmanship; please refer to the manufacturer’s warranty details for specific coverage information.