The Genuine BMW Empty Housing Blower - 64116921066 is a replacement part for the blower system in BMW vehicles. It is a housing unit that holds the blower motor and fan, allowing it to function properly and efficiently. This empty housing does not include any internal components, but is designed to fit perfectly with the existing blower system. It is a genuine BMW product, ensuring high quality and compatibility with your vehicle. This empty housing is essential for maintaining a functioning blower system in your BMW.