The Genuine BMW Fuel Door Spring (Ejector) - 51177257780 is a replacement part for BMW vehicles. It is designed to fit into the fuel door and provide the necessary tension to keep it securely closed. This spring is an essential component for the proper functioning of the fuel door, ensuring that it stays closed while driving and preventing any fuel leaks. It is made from high-quality materials and is an authentic BMW part, guaranteeing a perfect fit and reliable performance. This fuel door spring is a crucial part for maintaining the safety and functionality of your BMW vehicle.