The Genuine BMW A/C Line O-Ring - 64116933915 is a replacement part for the air conditioning system in BMW vehicles. This o-ring is designed to create a tight seal between the A/C line and other components, preventing leaks and ensuring efficient operation of the A/C system. It is made from high-quality materials and is an officially licensed BMW product. This o-ring is compatible with various BMW models and is essential for maintaining the proper functioning of the A/C system.