The Genuine BMW Fuel Tank Heat Insulation is a high-quality, OEM part designed specifically for BMW vehicles. This insulation is placed on the exterior of the fuel tank to help regulate the temperature of the fuel inside. It is made from durable materials and is designed to withstand extreme temperatures, ensuring that the fuel in the tank stays at the optimal temperature for efficient combustion. This insulation is essential for maintaining the performance and efficiency of your BMW's fuel system.