64GB21838P10
Engine Crankshaft Main Bearing
Mack

This main bearing supports the crankshaft within the engine, enabling smooth rotation and efficient power transfer. Crafted for durability, it withstands high loads and thermal stresses generated during engine operation. Proper main bearings are crucial for maintaining engine alignment, reducing wear, and preventing catastrophic failures. They also contribute to optimal oil clearance, ensuring proper lubrication and cooling of engine components. High-quality materials and precise manufacturing tolerances guarantee long service life and reliable performance under demanding conditions. Regular inspection and replacement of worn bearings are essential for engine longevity and performance. Source One Parts Center provides this vital component to help keep heavy-duty engines running smoothly and efficiently in rigorous operational environments.