The Genuine BMW Air Duct Oil Cooler is a high-quality replacement part designed specifically for BMW vehicles. It is made from durable materials and is designed to fit perfectly into the existing air duct system of your BMW. This oil cooler helps to regulate the temperature of the oil in your vehicle's engine, ensuring optimal performance and longevity. It is an essential component for maintaining the overall health and efficiency of your BMW's engine. This product is part number 51712253303 and is manufactured to the highest standards to ensure reliability and longevity.