Genuine OEM Volkswagen Air Distribution Housing, part number 7E5819351. This large, complex plastic housing is a central component of the vehicle's heating, ventilation, and air conditioning (HVAC) system. Its primary function is to direct conditioned air, after it has passed through the evaporator and heater core, to the appropriate cabin vents for optimal climate control. Typically located behind the dashboard, it weighs approximately 0.958 kg. Choosing a genuine OEM air distribution housing ensures precise internal baffling, correct actuator mounting points, and durable construction for efficient and reliable airflow management.