King Engine Bearings MB5785SI0.5 Main Bearing Set for BMW B48A20B Engine

The King Engine Bearings MB5785SI0.5 is a precision-engineered main bearing set specifically designed for BMW B48A20B turbocharged four-cylinder engines. This complete main bearing set provides the critical interface between the crankshaft and engine block, ensuring proper oil clearance and reliable engine operation under high-performance conditions.

Key Features:

• Engineered specifically for BMW B48A20B 2.0L turbocharged engines
• 0.5mm oversize (SI0.5) for crankshaft regrinding applications
• High-performance tri-metal construction for superior durability
• Precision tolerances ensure optimal oil clearance and bearing life
• Ideal for engine rebuilds where crankshaft has been machined undersize
• Complete set includes all main bearings required for installation

King Engine Bearings is recognized throughout the motorsports and high-performance engine building community for manufacturing bearings that meet or exceed OEM specifications. The MB5785SI0.5 main bearing set is manufactured using advanced tri-metal technology, featuring a steel backing, performance alloy intermediate layer, and specialized overlay for enhanced wear resistance and fatigue strength. These oversized bearings are essential when rebuilding engines with reground crankshafts, restoring proper clearances and ensuring long-term reliability in both street and performance applications.