Federal Mogul 4124MA10 Engine Crankshaft Main Bearing Set Undersize - 0.010

The Federal Mogul 4124MA10 is a precision-engineered engine crankshaft main bearing set designed for GM inline 6-cylinder engines including 194 and 230 cubic inch applications from the 1960s. This set features 0.010 inch undersize bearings specifically for use with reground crankshafts.

Key Features:

• Bi-metal construction with aluminum-tin bearing surface alloy bonded to high-strength 1010 steel backing
• Silicon-enhanced alloy provides superior wear resistance and can actually polish crankshaft journals during operation
• Half-groove design ensures optimal oil distribution to crankshaft journals
• Improved seizure and corrosion resistance compared to standard bearings
• Minimizes debris embedding to prevent crankshaft surface scoring
• Exacting tolerances meet or exceed OEM specifications

Federal Mogul main bearings are manufactured using ISO and QS certified processes, delivering the quality and precision required for modern engine rebuilds and performance applications. The MA Series bearings feature proprietary materials engineered to provide excellent load capacity, conformability, and anti-seizure characteristics.