King Engine Bearings MB5893SI0.5 Main Bearing Set Oversize - 0.50mm

The King Engine Bearings MB5893SI0.5 is a 0.50mm oversize main bearing set engineered for high-performance and OEM-replacement applications. Manufactured by King Engine Bearings — an industry leader in precision engine bearings — this set is built to exacting tolerances to ensure optimal oil film retention, reliable load distribution, and long service life.

King's SI-Series bearings feature a tri-metal or bi-metal construction using a high-strength steel backing, an intermediate layer, and a precision-applied overlay, delivering superior fatigue resistance and conformability compared to standard OEM-style bearings.

Key Features:

• 0.50mm Oversize — designed for use with crankshafts that have been ground 0.50mm undersize
• SI-Series construction — premium bi-metal or tri-metal layered design for enhanced durability and wear resistance
• Precision tolerance control — manufactured to tight dimensional specs for consistent oil clearances
• High load capacity — engineered to handle both street and performance engine applications
• Corrosion-resistant overlay — protects bearing surfaces during cold starts and low-lubrication conditions
• Direct replacement fit — designed to meet or exceed OEM specifications for a straightforward installation

The MB5893SI0.5 main bearing set is ideal for engine builders performing a crankshaft regrind and requiring properly sized replacement bearings. Always verify oil clearances with a micrometer and plastigage during installation to ensure proper fitment.