Federal Mogul 5138MA Engine Crankshaft Main Bearing Set Standard Size

The Federal Mogul 5138MA is a standard-size engine crankshaft main bearing set engineered for reliable crankshaft support during engine rebuilds and overhauls. Produced under Federal-Mogul's trusted Sealed Power brand, these main bearings are manufactured to meet or exceed original equipment specifications, ensuring proper oil clearance and crankshaft alignment for restored engine performance.

Key Features:

• Standard size (MA) — designed for use with a stock, unground crankshaft
• Precision-engineered bearing shells for accurate fit in OEM bearing bores
• High-strength steel backing for structural rigidity and long service life
• Engineered bearing lining material provides excellent wear resistance, corrosion resistance, and fatigue strength
• Oil feed holes and grooves aligned to OEM specifications for proper lubrication
• Manufactured under Federal-Mogul's Sealed Power brand — a recognized name in OEM and aftermarket engine components
• Complete set included for full crankshaft main journal replacement

Federal-Mogul's Sealed Power engine bearings incorporate advanced metallurgies and precision manufacturing processes to deliver consistent performance and durability. This main bearing set is an essential component for any engine rebuild, ensuring the crankshaft is properly supported and lubricated throughout its service life.