Engine Main & Connecting Rod Bearing Set BMW 240i 340i 440i X5 X6 B58 3.0L

This comprehensive engine bearing kit provides a complete bottom-end solution for the BMW B58 and S58 3.0L Turbo engines. Including both crankshaft main bearings and connecting rod bearings, this set is designed to simplify the complex OEM color-coded grading system with a high-performance "one-size-fits-all" standard replacement. These bearings are the primary defense against internal friction, engineered with advanced multi-layer alloys to maintain a stable oil film under the extreme boost pressures of modern BMW straight-six engines. Ideal for professional engine rebuilds where the crankshaft journals are within factory specifications, this kit ensures uniform oil pressure, reduces rotational drag, and provides maximum fatigue resistance for long-term engine reliability.