Federal Mogul Engine Crankshaft Main Bearing Set Undersize

The Federal Mogul Engine Crankshaft Main Bearing Set in undersize is made for engine rebuilds where the crankshaft journals have been ground below standard diameter. Undersize main bearings, also called crank main bearings or crankshaft bearing sets, restore the correct oil clearance between the crankshaft and the engine block. This helps the rotating assembly run smoothly and reliably.

Key Features:

• Undersize main bearing set for use with reground or machined crankshaft journals
• Supports the crankshaft and reduces friction between the crank and block
• Precision-manufactured bearing shells designed for consistent oil clearance and proper seating
• Federal Mogul is a long-established supplier of engine bearings to OEM and aftermarket engine builders
• Suitable for engine rebuilds and remanufacturing

Measure crankshaft journals and oil clearances during assembly, and select the bearing size that matches your machining specifications. Each part number in this product line covers a specific application and undersize.