Federal Mogul 5090MA40 Engine Main Bearing Set Undersize - 40mm

The Federal Mogul 5090MA40 is a precision-engineered engine crankshaft main bearing set designed for demanding automotive applications. This bearing set features a .40mm undersize specification, making it ideal for engines that have undergone crankshaft grinding and reconditioning during rebuilds.

Key Features:

• Manufactured by Federal Mogul, a trusted name in powertrain components with over 120 years of engineering expertise
• .40mm undersize bearing shells for use with reconditioned crankshafts
• High-quality bearing materials designed for durability and reduced friction
• Precision-machined to exacting tolerances for proper oil clearance and optimal lubrication
• Complete main bearing set for professional engine rebuilding applications
• Engineered to withstand high loads and operating temperatures

Federal Mogul main bearing sets are manufactured using advanced metallurgy and quality control processes to ensure reliable performance and extended service life. These bearings provide the proper interface between the crankshaft and engine block, enabling smooth rotation while maintaining critical oil film thickness for engine protection.