Lower Main Bearings Only

The MAHLE ORIGINAL/CLEVITE Lower Main Bearings Only (MB3249ML, set of 9) are essential engine components designed specifically for mechanics and engine builders who require OEM-quality reliability in rebuild and performance applications. These bearings serve as the critical foundation for any engine's longevity, supporting crankshaft rotation and managing substantial loads during operation.

Manufactured to exacting OEM tolerances, these lower main bearings utilize proprietary copper-lead alloy compositions that enhance wear resistance, fatigue strength, and oil film retention under extreme pressure. Each bearing shell is sized and micro-finished to prevent scoring and premature failure, ensuring optimal crankshaft alignment and engine performance. The precision bore geometry guarantees a perfect fit in the engine block, while the backing material effectively distributes loads across the journal surface.

Ideal for complete engine overhauls, high-mileage rebuilds, and performance restorations, these bearings are a reliable choice for anyone looking to enhance engine durability. Whether you're working on a diesel engine block or restoring a vintage automotive powerplant, the MAHLE ORIGINAL/CLEVITE Lower Main Bearings Only are designed to meet the demands of serious engine builders.