Federal Mogul 148M Engine Crankshaft Main Bearing Set Standard Size

The Federal Mogul 148M is a standard-size engine crankshaft main bearing set engineered to restore proper oil clearances and crankshaft support during engine rebuilds or overhauls. Manufactured under Federal Mogul's trusted Sealed Power product line, this main bearing set is built to meet or exceed original equipment specifications for a reliable, long-lasting repair.

Key Features:

• Standard size main bearing set designed for precise fit and correct oil clearance restoration
• Precision-manufactured half-shell bearing design for easy installation into the engine block and main caps
• Steel-backed construction provides a rigid foundation for the bearing lining material, ensuring dimensional stability under load
• Engineered bearing lining alloy offers excellent wear resistance, corrosion resistance, and conformability to the crankshaft journal surface
• Locating lugs on each bearing shell ensure proper positioning and prevent rotation during engine operation
• Meets or exceeds OEM specifications for oil clearance tolerances and dimensional accuracy
• Part of Federal Mogul's comprehensive engine bearing program, backed by decades of OE and aftermarket engineering expertise

The 148M main bearing set is an essential component for any engine rebuild requiring crankshaft main bearing replacement. Proper main bearing selection is critical to maintaining the correct oil film between the crankshaft journals and the engine block, protecting against premature wear and ensuring optimal engine longevity. Always verify crankshaft journal diameter and condition prior to installation.