Description

When your engine starts making that telltale knock or you’re hearing rattling from the bottom end, it’s usually time to face facts about your connecting rod bearings. These oversize bearings give your Cummins B Series engine a new lease on life by compensating for a crankshaft that’s been machined to remove scoring and restore proper oil clearances.

What You’re Getting

Sold as a pair – enough to rebuild one connecting rod completely
0.25mm oversize dimensions to match machined crankshaft journals
Quality construction designed to handle the stresses and heat of diesel operation
Proper oil film thickness for reliable lubrication and heat dissipation
Direct replacement once your crank has been professionally machined

Built for Real Farm Work

The Cummins B Series engines power a wide range of Case IH Maxxum tractors, from the utility-sized 5120 through the heavy-duty MX170. These are workhorses that handle everything from loader work and cultivation to heavy tillage and harvest operations. When you’re putting in long days during planting or harvest, you need an engine that runs smooth and reliable.

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. A good tip is to keep the old bearings for reference when talking to your machine shop about the grinding work needed.