Engine Crankshaft Main Bearing Set Audi A6 A7 A8 Q7 Q8 S4 S5 SQ5 3.0L EA839

Main bearings are the primary support for the engine's crankshaft, ensuring it rotates smoothly while maintaining the critical oil film that prevents metal-to-metal contact. In the Audi 3.0T EA839 engine, these bearings must withstand immense pressure from the turbocharging system. This complete bearing set is designed to replace worn factory journals, restoring oil pressure and reducing rotational friction. Engineered with high-durability alloys, these bearings provide superior fatigue resistance and load-carrying capacity, making them an essential component for any professional bottom-end engine rebuild or high-mileage maintenance project.