MAIN BEARINGS

Main bearings play a crucial role in the proper functioning of an engine, as they support the crankshaft and reduce friction between moving parts. The category of main bearings includes a wide variety of options to suit different engine sizes and specifications.

From standard size main bearing sets to undersize options, customers can find the perfect fit for their 1989-2018 Cummins 5.9L/6.7L 12V/24V engines. Brands like Mahle, Cummins, and Interstate McBee offer high-quality main bearings designed to meet the demands of heavy-duty diesel engines.

Whether you need a standard set or one with undersize or oversize specifications, this category has you covered. Additionally, options like crankshaft thrust bearings and alignment dowels ensure that all components work together seamlessly.

Customers can choose from a range of main bearing sets with different undersize options, such as .010, .020, .030, and .040, depending on their engine's requirements. Upgraded parts like the Interstate McBee M-3900068 alignment dowel and the CPP Diesel engine block small parts diagram provide added convenience and reliability.

For anyone looking to maintain or upgrade their Cummins engine, the main bearings category offers a comprehensive selection of high-quality products to keep the engine running smoothly and efficiently. With options for different engine models and years, customers can find the perfect main bearings for their specific needs.