King Engine Bearings MB5556AM1.5 Main Bearing Set Suzuki Undersize - G-13 1.50mm

The King Engine Bearings MB5556AM1.5 is a complete main bearing set designed for the Suzuki G-13 engine family, manufactured in a +1.50mm undersize to accommodate crankshafts that have been reground to restore journal surfaces. This set is part of King's industry-trusted AM (Alecular Material) Series, engineered for street and marine applications requiring reliable, long-lasting crankshaft support.

Key Features:

• AM (Alecular Material) construction — a proprietary bi-metal alloy of aluminum, tin, and copper on a high-strength steel backing, delivering superior embeddability and conformability
• +1.50mm undersize — designed for use with crankshaft journals that have been turned down 1.50mm from factory specification
• Lead-free formulation — environmentally friendly and compliant with modern standards
• Tight tolerance control — manufactured to within ±0.0001" for precise oil clearance and optimal bearing life
• High macro-particle embeddability — helps protect crank journals by trapping contaminants within the bearing surface rather than scoring the journal
• High conformability — broached finish allows the bearing to conform to minor surface irregularities for full contact and load distribution
• Fits Suzuki G-13 engine series

Reference Specifications (STD size basis):

• Housing Bore: 47.256–49.017mm
• Bearing Length: 18.00mm
• Max Wall Thickness: 1.998mm
• Shaft Diameter: 54.976mm

King Engine Bearings has specialized exclusively in engine bearings since 1960, supplying product lines that cover automobiles, light- and heavy-duty trucks, marine, aviation, and standby power engines. The MB5556AM1.5 is the correct choice when performing an engine rebuild on a G-13 with a 1.50mm reground crankshaft.