The Genuine BMW 3-Pin Mass Air Flow Connector - 12521427222 is a high-quality replacement connector for the mass air flow sensor in BMW vehicles. It is designed to fit perfectly and provide a secure connection for accurate readings of air flow into the engine. This connector is made from durable materials to ensure long-lasting performance and is an authentic BMW part. It is compatible with 3-pin mass air flow sensors and is an essential component for maintaining the proper functioning of your BMW's engine.