Genuine OEM Audi fuel rail set, part number 059130300DB. This fuel rail set is a crucial component of the fuel injection system, responsible for storing and delivering pressurized fuel to the engine's fuel injectors. It is typically mounted on the engine's intake manifold or cylinder head. Constructed from durable materials designed to withstand high fuel pressures, this set ensures precise and consistent fuel delivery, which is vital for optimal engine performance, fuel economy, and emissions control.