Four Seasons 86313 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for BMW X3 and X4

The Four Seasons Thermostat Housing 86313 is designed to maintain optimal engine temperature in BMW X3 and X4 models. This integrated thermostat housing combines durable plastic construction with a built-in thermostat to ensure efficient coolant flow and temperature regulation.

Key Features of Four Seasons Thermostat Housing 86313

• Material: High-quality plastic for corrosion resistance and durability
• Integrated thermostat included for precise temperature control
• Flange thickness of 0.630 inches for secure mounting
• Inlet port diameters of 1.51 and 1.536 inches for proper coolant flow
• Bolt hole center-to-center distance of 0.91 inches for exact fitment
• Overall height approximately 5.72 to 5.75 inches
• Meets or exceeds OEM specifications for reliable performance

About the Four Seasons Thermostat Housing Product Line

The Four Seasons Thermostat Housing line focuses on engine coolant components designed to meet or exceed original equipment manufacturer standards. This product line offers integrated thermostat housings that simplify installation and improve cooling system reliability. The 86313 part number is part of this line, providing a direct replacement solution for BMW X3 and X4 vehicles.

Detailed Product Description

This engine coolant thermostat housing is constructed from durable plastic, offering resistance to corrosion and heat. The integrated thermostat ensures the engine maintains the correct operating temperature by regulating coolant flow. With precise dimensions including a flange thickness of 0.630 inches and inlet port diameters of 1.51 and 1.536 inches, this housing fits securely and functions efficiently. The bolt hole center-to-center measurement of 0.91 inches ensures compatibility with the mounting points on BMW X3 and X4 models. Overall height ranges from 5.72 to 5.75 inches, matching OEM specifications for seamless integration.

Common Applications and Issues Addressed

• Replacement of cracked or leaking thermostat housing
• Resolving engine overheating due to thermostat failure
• Fixing coolant leaks around the thermostat area
• Maintaining proper engine temperature regulation
• Restoring cooling system integrity in BMW X3 and X4 vehicles

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid burns. Remove the old thermostat housing carefully, cleaning the mounting surface thoroughly. Note that this part does not include a gasket or seal, so a compatible gasket must be sourced separately. Verify bolt hole alignment using the 0.91-inch center-to-center measurement. Proper torque specifications should be followed to prevent leaks or damage.

Quality Assurance and Warranty

The Four Seasons Thermostat Housing 86313 meets or exceeds OEM standards, providing reliable performance for BMW X3 and X4 cooling systems. While specific warranty details are not provided, Four Seasons products typically undergo rigorous quality control to ensure durability and fitment accuracy.