Motorad 439-180 Engine Coolant Thermostat Housing Assembly

Overview of Motorad Integrated Housing Thermostat 439-180

The Motorad Integrated Housing Thermostat 439-180 is designed specifically for Land Rover Defender and Discovery models. This engine coolant thermostat housing assembly regulates engine temperature by opening at 180 degrees Fahrenheit, ensuring optimal performance and preventing overheating.

• Compatible with Land Rover Defender and Discovery
• Opening temperature set at 180°F for precise engine cooling
• Constructed from durable plastic, stainless steel, and copper materials
• Features three bolt holes and three outlet ports for secure mounting
• Does not include gasket, bolts, or mounting hardware
• White color housing for easy identification

Detailed Product Description

The Motorad Integrated Housing Thermostat 439-180 is an engine coolant thermostat housing assembly engineered to maintain proper engine temperature in Land Rover Defender and Discovery vehicles. This thermostat housing features a 180-degree Fahrenheit opening temperature, which ensures the thermostat begins to open at the correct temperature to regulate coolant flow effectively. The assembly is made from a combination of plastic, stainless steel, and copper, providing a balance of durability and corrosion resistance. It includes three bolt holes and three outlet ports with outlet diameters of 1.30, 1.37, and 1.38 inches, designed for precise fitment and coolant routing. Note that this part does not come with a bleeder hole, gasket, bolts, or mounting hardware, so these components must be sourced separately during installation.

About the Integrated Housing Thermostat Product Line

The Motorad Integrated Housing Thermostat line focuses on combining the thermostat and housing into a single assembly, simplifying replacement and improving reliability. This integration reduces potential leak points and streamlines installation for Land Rover Defender and Discovery models. The 439-180 part number represents a specific configuration within this line, optimized for a 180°F opening temperature and multiple outlet ports to match factory specifications.

Common Applications and Issues Addressed

• Regulates engine temperature to prevent overheating
• Replaces faulty or leaking thermostat housings
• Restores proper coolant flow in Land Rover Defender and Discovery cooling systems
• Eliminates coolant leaks caused by cracked or damaged housings
• Ensures accurate thermostat operation at 180°F

Installation Notes and Tips

When installing the Motorad 439-180 thermostat housing assembly, ensure all old gasket material is thoroughly cleaned from the mounting surface. Since this part does not include bolts or gaskets, use OEM or compatible hardware and seals to prevent leaks. Tighten the three bolts evenly to the manufacturer's torque specifications. Verify coolant outlet diameters match your vehicle’s hoses for proper fitment. Bleeding the cooling system after installation is recommended to remove trapped air, even though this housing does not have a bleeder hole.

Quality Assurance and Warranty

Motorad manufactures the Integrated Housing Thermostat 439-180 to meet or exceed OEM standards for fit and function in Land Rover Defender and Discovery vehicles. The use of plastic, stainless steel, and copper materials ensures durability and corrosion resistance under normal operating conditions. Please consult Motorad or your parts supplier for specific warranty details related to this thermostat housing assembly.