BorgWarner 5499880022 Turbocharger Assembly BV39

This BorgWarner BV39 variable geometry turbocharger serves as a direct OEM replacement for VAG part numbers 5499880022 and 54399880011. It is engineered for 1.9 TDI Pumpe Düse diesel applications across Audi, Volkswagen, Skoda, and Seat platforms. The unit features a K18 (Inconel 713C) investment cast turbine wheel designed to withstand elevated exhaust gas temperatures inherent to PD injection systems. The variable nozzle turbine (VNT) mechanism is actuated via vacuum diaphragm, providing precise boost control across the operating range. The compressor cover and turbine housing are constructed from high-silicon ductile iron and nickel-resist alloys respectively. This assembly includes the CHRA (Center Housing Rotating Assembly) and actuator, calibrated to OEM specifications for emissions compliance and performance parity.