Engine Connecting Rod Bearing Set +0.50mm BMW 240i 340i 440i X5 B58 3.0L

These oversized connecting rod bearings are specifically engineered for BMW B58 and S58 engines where the crankshaft rod journals have been machined to a +0.50mm (+0.020in) undersize. In high-performance applications, maintaining precise oil clearance at the rod journal is critical to prevent metal-to-metal contact and ensure engine longevity. This set compensates for significant material removal during professional crankshaft reconditioning, restoring factory-spec clearances. Built with high-strength, multi-layer alloys designed to withstand the extreme reciprocating loads and high temperatures of turbocharged 6-cylinder engines, these bearings provide a reliable solution for comprehensive bottom-end rebuilds.