Product Details: The Airsource 12V Blower Control Assembly is the perfect solution for controlling the airflow and blower speed of your Mack vehicle. This assembly includes over current protection, over temperature protection and reverse polarity protection to ensure your vehicle is safe and secure. The blower control system is designed to provide accurate control of the airflow and blower speed, allowing you to customize the performance of your vehicle. With this assembly, you can rest assured that your Mack vehicle is running at its best.<br/><br/>FleetPride is your First Click in Heavy Duty®.