The Genuine BMW Cover Column A Left (Black) - 51439128409 is a replacement part for BMW vehicles. It is designed to cover the left side of the A column, which is the vertical support between the windshield and the front door. This cover is made from high-quality materials and is an exact match to the original part on BMW vehicles. It is black in color and is specifically designed for the left side of the vehicle. This cover helps to protect the A column and give it a sleek, finished appearance. It is a genuine BMW product and is an essential component for maintaining the overall look and functionality of your BMW vehicle.