The Genuine BMW Radiator Support Air Duct - 51747370386 is a high-quality, OEM replacement part for BMW vehicles. This air duct is designed to fit perfectly into the radiator support and directs air flow to the radiator for efficient cooling. It is made from durable materials and is built to the exact specifications of the original factory part. This air duct is an essential component for maintaining the proper functioning of the radiator and preventing overheating. It is compatible with various BMW models and is a reliable and long-lasting solution for keeping your vehicle's cooling system in top condition.