The Genuine BMW A/C Refrigerant Suction Hose - 64539321309 is a high-quality replacement part for your BMW's air conditioning system. This hose is responsible for suctioning refrigerant from the evaporator and sending it to the compressor. It is made from durable materials and designed to meet the specifications of your BMW's A/C system. This hose is an essential component for keeping your car's A/C system running smoothly and efficiently. It is a genuine BMW part, ensuring the best fit and performance for your vehicle.