The Genuine Mercedes Fuel Return Line - 642070553264 is a high-quality replacement part for Mercedes vehicles. It is designed to safely and efficiently return excess fuel from the engine back to the fuel tank. This fuel return line is made from durable materials and is precision-engineered to fit perfectly in your vehicle. It is an essential component for maintaining proper fuel flow and preventing any potential fuel leaks. This product is an authentic Mercedes part and is compatible with various Mercedes models.