The Genuine BMW Cover Brake Air Duct (part number 51717213647) is a high-quality, OEM replacement part for BMW vehicles. This cover is designed to fit over the brake air duct and protect it from damage or debris. It is made from durable materials and is an exact match for the original part, ensuring a perfect fit and function. This cover is an essential component of the brake system and helps to maintain proper airflow for optimal braking performance. It is a genuine BMW product and is backed by the manufacturer's warranty.