Genuine OEM Volkswagen High Pressure Fuel Pump, part number 03H127025D. This critical component is responsible for delivering fuel at the precise high pressure required by the engine's direct injection system, ensuring optimal fuel atomization and combustion efficiency. It is typically mounted on the engine, driven by a camshaft. Weighing 0.827 kg, this pump is engineered to meet stringent OEM performance and durability standards. Using a genuine OEM high pressure fuel pump ensures correct fuel pressure regulation, reliable operation, and proper integration with the engine management system, preventing potential performance issues or damage.