Description

When your tractor starts knocking or you’ve noticed oil pressure dropping, the main bearings are often the culprit. Farm equipment bearings take a beating—constant rotation under heavy loads, dirt, moisture, and temperature swings that would destroy ordinary bearings. These main end bearings are the critical foundation of your engine’s bottom end, supporting the crankshaft and keeping everything running smooth even when you’re pushing through tough conditions in the field.

What You’re Getting

Complete bearing set engineered to handle the extreme loads of agricultural work
Precision grinding for smooth operation and materials that stand up to the punishment
Direct replacement that matches original specifications for proper fit and oil clearances
Quality construction designed to restore proper oil pressure and eliminate engine knock

Built for Real Farm Work

This bearing set serves a range of trusted Case IH workhorses including the 276, 354, 374, 384, 434, 444, and B-series models like the B250, B275, and B414. Whether you’re running a utility tractor for daily chores or a row-crop machine for seasonal planting, these engines have powered countless hours of honest farm work from cultivation to harvest.

Made to Last

Engine bearings take tremendous loads, especially in agricultural applications where engines run for hours at varying RPMs. These oversized bearings are manufactured to handle the stresses of farm work while providing the proper oil film thickness for reliable lubrication and heat dissipation.

Installation Notes

Installing oversize bearings requires having your crankshaft machined by a qualified machine shop to the proper dimensions. Always check crankshaft journal diameter with a micrometer before ordering, and consider replacing the main bearings at the same time if you’re doing a complete bottom-end rebuild. It’s also wise to replace the rod bearings while you’re in there—if one set needs attention, the others have likely seen similar wear.