HVAC Heater Blend Door Actuator (HCA40180) by TRQ®. Main. If you need a reliable HVAC heater blend door actuator to change your non-working one, this part is the right choice. Made with quality materials, it is sure to provide years of reliable performance and ensure the proper operation of your HVAC system. This A/C heater door blend actuator is designed specifically for your vehicle, so you will have no problems with installation and fit.
