HVAC Heater Blend Door Actuator Ensure precise climate control in your vehicle with this quality HVAC Heater Blend Door Actuator. Designed for reliable performance, this part restores proper function to your heating and cooling system by accurately controlling airflow direction and temperature inside the cabin. Key Features and Benefits: Restores proper temperature control by regulating the blend of hot and cold air Durable construction for longlasting performance in all driving conditions Engineered to meet or exceed OEM specifications for fit and function Direct replacement part for a quick, hassle installation Compatibility: Buick Skylark 1991 Cadillac Escalade 1999, 20022006 Cadillac Escalade ESV 20032006 Chevy Astro 19962005 (Please verify compatibility using the Fitment Filter before .) Location Options: Main Auxiliary Auxiliary or Main Rear Part Numbers: 604100 89018356 14455963 16124922 Uses and Applications: 1. a faulty actuator when your vehicle's climate control is stuck on hot or cold, ensuring passenger comfort in all weather. 2. Correct inconsistent airflow issues where the HVAC system is not directing air to the selected vents. 3. Maintain the efficiency of your heating and cooling system, reducing strain on other HVAC components. This HVAC Heater Blend Door Actuator is the dependable solution for restoring precise temperature regulation to your vehicle's interior, keeping you and your passengers comfortable yearround.