King Engine Bearings MB4542CA0.5 Crankshaft Main Bearing Set Oversize - 0.5mm

The King Engine Bearings MB4542CA0.5 is a +0.5mm oversize crankshaft main bearing set designed for Nissan VQ-series engines. This set includes 4 pairs (8 bearing shells) and is engineered as a precision OE-replacement solution for engines with crankshaft journals that have been reground to the +0.5mm undersize specification.

Material Construction:

• CA-Series Tri-Metal, Copper-Based (K-794) — traditional tri-metal construction with a copper-lead lining, nickel barrier, and babbitt overlay on a high-strength steel backing
• Equivalent to SAE-794 copper-based tri-metal standard
• Engineered for medium-load engine applications as a conventional OE replacement

Key Features:

• +0.5mm (0.020") oversize — designed for use with reground crankshafts
• Bull's Eye Tolerance™ Technology — King's proprietary manufacturing process delivering tighter wall thickness tolerances for more consistent oil clearance
• Precision crush relief and oil grooves engineered to OE specifications
• Manufactured to strict dimensional tolerances for proper fitment and reliable oil film maintenance

King Engine Bearings has specialized exclusively in engine bearings since 1960, applying insights from aviation and motorsport applications to every bearing in their aftermarket lineup. The MB4542CA0.5 is the correct oversize replacement when standard clearances cannot be restored with a standard-size bearing.