King Engine Bearings MB5518AM050 Main Bearing Set AMC Jeep Undersize - 390 401 050

The King Engine Bearings MB5518AM050 is a complete main bearing set designed for AMC and Jeep 390 and 401 cubic inch V8 engines. This set is ground to a .050" undersize specification, making it the correct choice for engine rebuilds where the crankshaft journals have been machined beyond standard dimensions.

King Engine Bearings is a globally recognized manufacturer of precision engine bearings, producing components to strict OEM and performance tolerances. Their main bearing sets are manufactured using high-quality tri-metal or bi-metal construction depending on application, ensuring excellent wear resistance, conformability, and fatigue strength for long-lasting engine performance.

Key Features:

• Complete main bearing set for AMC/Jeep 390 and 401 V8 engines
• .050" undersize (050) — designed for reground crankshafts
• Precision-engineered to strict dimensional tolerances for proper oil clearance
• High-quality bearing alloy construction for durability and wear resistance
• Manufacturer Part Number: MB5518AM050
• Cross-reference: MB5518AM .050

This bearing set is an ideal component for a professional engine rebuild or overhaul on AMC and Jeep big-block V8 applications. Always verify crankshaft journal dimensions and desired oil clearance before selecting bearing size.