690GC428
HVAC Air Inlet Valve
Mack

The HVAC air inlet valve controls the flow of outside air into the vehicle’s heating, ventilation, and air conditioning system. It plays a vital role in maintaining cabin comfort by regulating air intake based on operational needs. Designed for durability, this valve withstands temperature fluctuations and exposure to contaminants, ensuring consistent airflow. Proper operation of the inlet valve is essential for effective climate control, energy efficiency, and air quality inside the cab. Its reliable performance helps prevent system malfunctions and maintains optimal environmental conditions for drivers and passengers. Regular inspection and replacement of this component are recommended to sustain HVAC system efficiency. Source One Parts Center provides this critical part to keep your climate control system functioning flawlessly.