This ELRING gasket set, part number 939.390, is specifically designed for Common-Rail injection systems. It provides essential seals to maintain the integrity of your fuel injection system. Proper sealing is crucial for the efficient operation of Common-Rail injectors. This set includes all necessary gaskets to ensure a leak-free installation, preventing fuel loss and maintaining optimal injection pressure. This contributes to better fuel economy and reduced emissions. Crafted from durable materials, these gaskets are built to withstand the demanding conditions within the engine compartment, including high temperatures and fuel exposure. ELRING is a trusted brand known for its commitment to quality and precision engineering, ensuring a perfect fit and long-lasting performance.