Keeping you Ready for the Road Ahead™, the AirSource 12V 2-Pin Heater Valve Actuator effectively maintains your truck heater’s operation during cold months. As the automatic temperature control and regulator of air intake for your HVAC system, this heavy duty actuator’s solenoid ensures the shut off of air pressure flow allowance to occur when electrically charged or uncharged. Keep your HVAC system in proper order during harsh winter conditions with this 2-pin heater actuator, permitting the heater core to allow warm air into the cabin. FleetPride is your First Click in Heavy Duty®.