The NEW OEM Tesla Model S Active Louvre Assembly Left Hand (1057851-00-J) is an electronically controlled airflow management component located on the left side of the front fascia. This active louvre opens and closes automatically based on thermal and aerodynamic needs, helping to regulate airflow to the radiator, battery, and other cooling systems. Designed for maximum efficiency, it contributes to improved energy consumption, vehicle range, and thermal performance. Manufactured to Tesla’s original equipment specifications, this unit ensures seamless integration with the vehicle’s cooling system and onboard control modules.