The Genuine BMW Transfer Case Drain/Fill Plug - 27111226467 is a high-quality replacement part for BMW vehicles. This plug is specifically designed for the transfer case, which is responsible for distributing power between the front and rear axles. It is made from durable materials and is an exact fit for BMW models. This plug is used for draining and filling the transfer case fluid during maintenance or repairs. It is an essential component for keeping the transfer case functioning properly and ensuring optimal performance of the vehicle.