Main and Connecting Rod Bearing Set Audi A6 A7 Q7 S4 S5 SQ5 3.0L EA839 06M198421

Internal engine bearings are critical for maintaining the structural integrity of high-performance turbocharged engines like the Audi EA839 3.0T V6. Over time, high thermal loads and oil contamination can cause microscopic wear on the bearing surfaces, leading to reduced oil pressure and eventual rod knock. Failure to replace worn bearings can lead to catastrophic crankshaft damage or engine seizure. This comprehensive replacement set is manufactured with premium multi-layer materials designed to withstand the high torque and RPM demands of the S and SQ platforms. Installing this full set during an engine overhaul restores factory-spec oil film thickness and ensures the long-term reliability of the bottom-end assembly.