The Genuine BMW Fuel Tank Cap - 16117468994 is a high-quality, OEM replacement part for BMW vehicles. This fuel tank cap is designed to securely seal the fuel tank, preventing any leaks or evaporation of fuel. It is made from durable materials and is designed to fit perfectly on the fuel tank of BMW models. The cap has a twist-lock mechanism for easy opening and closing, and it also has a built-in pressure relief valve to prevent pressure build-up in the fuel tank. This fuel tank cap is an essential component for maintaining the proper functioning of your BMW's fuel system.