This HVAC Heater Control Valve is designed to fit Ford Ranger, Explorer, Mercury Mountaineer, and Mazda vehicles. Manufactured by Four Seasons, the valve has an interchange part number of 74859 and other part numbers including 801053. It is a crucial component for controlling the flow of coolant to the heater core, ensuring proper functionality of the heating system in the vehicle. This part is essential for maintaining a comfortable temperature inside the car during cold weather.