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

Crankshaft thrust washers are essential components that control the axial (fore-and-aft) movement of the crankshaft within the engine block. In high-performance Audi EA839 engines, maintaining precise axial clearance is critical to prevent damage to the crankshaft journals and the engine block itself, especially in vehicles with manual transmissions or high-pressure clutch systems. These thrust bearings are precision-manufactured to restore factory-spec clearances, ensuring smooth rotation and protecting the engine's bottom end from premature wear. Replacing these during a main bearing service or engine rebuild is vital for the long-term stability of the rotating assembly.