We carry OEM-brand fuel-system and engine components for Audi TDI diesels - fuel injectors, injection pumps, turbochargers and actuators, and sensors. We stock genuine parts from Bosch and Garrett built for the precise demands of TDI injection systems, with fast US shipping. Audi diesel parts are model- and year-specific, so confirm fitment against your engine code and OEM cross-reference before ordering.