BorgWarner Turbocharger 03-04 Audi RS6 K04

The BorgWarner 53049880029 is a K04 series turbocharger designed for the Audi RS6. This unit is a journal bearing, water-cooled turbocharger, supplied complete with the actuator. It is a direct replacement for various Audi part numbers, including 077145704K.

This turbocharger is engineered to meet or exceed original equipment standards for the 4.2L V8 biturbo engines found in early 2000s Audi performance vehicles. It features robust construction to handle high boost pressures and thermal loads typical of the platform.

When installing, it is critical to ensure all oil and coolant lines are inspected for debris and replaced if necessary. Professional installation is highly recommended to ensure proper priming of the turbocharger bearings before engine start-up.

This part is specific to the 2003-2004 Audi RS6 4.2L V8 biturbo engine. Ensure compatibility by cross-referencing your factory part number against the provided alternates.