HVAC Heater Blend Door Actuator – Reliable Replacement for Temperature Control Ensure precise heating and cooling control in your vehicle with this replacement HVAC Heater Blend Door Actuator. Designed for accurate fit and dependable performance, it restores smooth operation to your climate control system. Key Features and Benefits: Direct replacement part for worn or malfunctioning blend door actuators Maintains proper airflow direction between heating and cooling modes Compatible with vehicles specified below for fit Stable performance for longlasting operation Easy installation with standard tools Compatibility: Buick Skylark 1991 Cadillac Escalade 1999, 20022006 Cadillac Escalade ESV 20032006 Chevrolet Astro 19962005 (Please verify fitment using the Fitment Filter before ) Specifications: Location: Main, Auxiliary, Auxiliary or Main Rear Part Numbers: 604100, 89018356, 14455963, 16124922 Part Name: HVAC Heater Blend Door Actuator Replacement Reference: Repc410205 Practical Applications: 1. Restore proper temperature regulation in winter when the heater fails to provide warm air due to a faulty actuator. 2. Fix uneven cabin cooling during summer when the blend door does not switch correctly between modes. 3. worn actuators in vehicles with dualzone climate control to ensure both driver and passenger receive desired comfort levels. This actuator is engineered to meet original equipment specifications, ensuring dependable performance and fit for the listed models. Ideal for mechanics, DIY vehicle owners, or anyone needing to a failing blend door actuator to maintain climate system function.