Lower Main Bearings Only - 9pcs.

The MAHLE ORIGINAL/CLEVITE Lower Main Bearings Only — 9-piece set (MB3249VL) represents OEM-quality bearing replacement for serious engine rebuilds and high-mileage engine reconditioning. These precision-engineered lower main bearings are engineered for engines that demand durability and accurate bearing clearance, making them essential for anyone performing a complete bottom-end overhaul or restoring an engine to factory specifications. Whether you're a professional mechanic rebuilding customer engines or a dedicated enthusiast tackling your own mill, this nine-piece bearing set ensures your crankshaft rides on the same trusted surfaces as original factory engines.

MAHLE ORIGINAL and CLEVITE bearings are manufactured to exacting tolerances that guarantee proper oil film thickness and load distribution across the crankshaft journals. The bearing material composition and surface finish are optimized to minimize friction while maintaining structural integrity under peak combustion pressures and high-RPM operation. Each of the nine bearings in this set is precisely sized and finished to deliver the correct crush and bearing clearance your engine's design requires, preventing premature wear and oil starvation. The lightweight construction—just 1.98 lbs for the complete set—reflects the precision engineering that keeps mass minimal without compromising bearing strength or longevity.

This bearing set is ideal for classic car restoration, vintage truck engine rebuilds, and any application where original factory bearing geometry and material specifications are non-negotiable. Professional shops and experienced rebuilders trust MAHLE ORIGINAL/CLEVITE bearings because they eliminate variables and guesswork during critical assembly phases. Proper installation requires micrometer-verified clearance checks and careful torque sequencing during crankshaft installation; follow your engine manual's specifications precisely for optimal bearing life. These lower main bearings deliver the reliability that distinguishes a properly rebuilt engine from one destined for premature failure.