Genuine BMW Trailer Hitch Ball Mount - 71600413358 - This genuine BMW trailer hitch ball mount is designed to provide a secure connection between your trailer and your vehicle. It is constructed from high-strength steel and is corrosion-resistant for long-lasting performance. The ball mount is designed for use with a 2 trailer ball and features a maximum tongue weight capacity of 350 lbs. This product is backed by a two-year limited warranty.