The Genuine BMW Air Duct Displ.Engine Oil Cooler Right - 51747308828 is a replacement part for BMW vehicles. It is designed to direct air flow to the engine oil cooler, which helps to regulate the temperature of the engine oil. This specific part is made for the right side of the vehicle and is manufactured by BMW to ensure proper fit and function. It is a genuine OEM (Original Equipment Manufacturer) part, meaning it is made by the same company that produced the original part for your vehicle. This air duct is essential for maintaining the proper temperature of the engine oil, which is crucial for the overall performance and longevity of the engine.