Engine Crankshaft Main Bearing Set BMW 240i 340i 440i 540i X5 X6 B58

This premium main bearing set is engineered to support the crankshaft of the BMW B58 and S58 3.0L Turbo engines. Designed as a high-performance alternative to the complex OEM color-coded system, this "one-size-fits-all" standard replacement ensures consistent oil film thickness and reliable crankshaft rotation. These bearings are manufactured with advanced multi-layer materials capable of handling the high torque and thermal stress typical of modern B58 straight-six engines. Ideal for standard engine refreshes or rebuilds where the crankshaft journals remain within factory specifications, this set provides exceptional fatigue resistance and maintains stable oil pressure throughout the RPM range.