64GB21807P20
Main Bearing for Crankshaft
Mack

The main bearing for the crankshaft is a fundamental engine component that supports the crankshaft within the engine block, allowing it to rotate smoothly under load. Its precise engineering minimizes friction and wear, ensuring efficient power transfer and engine longevity. Proper lubrication and installation are essential to prevent overheating and failure, which could lead to costly repairs or engine damage. The main bearing's durability directly influences engine performance, stability, and overall reliability. Source One Parts Center offers this high-quality bearing, manufactured to meet strict industry standards for performance and durability in heavy-duty applications.