Specifications: Controls the airflow and/or regulates the temperature of the airflow into the vehicle Direct replacement Built to strict quality control standards 100% tested prior to leaving the factory Interchange Part Number: 1572971, 89018365, 604-106, 52402588, 16163982, 52402598, 52402612, F04013 Package include: 1x HVAC Heater Air Blend Door Actuator Vehicle Information: (1) See Part Below for Actuator Position Details. Actuator Locations for Chevrolet & GMC Trucks & SUVs .