Description

The Cummins Main Bearing Set 3802211 (0.25 mm / .010” Oversize) is a precision-engineered oversize bearing kit designed for Cummins 6C family 8.3 diesel engines , including 6CT and 6CTA 8.3 applications. These oversize main bearings are used when the crankshaft has been machined to correct wear or damage, restoring proper oil clearance and crankshaft support. Manufactured to OEM specifications , this .010” oversize main bearing set is built from high-quality bearing materials that provide excellent load capacity, fatigue resistance, and consistent lubrication under heavy-duty operating conditions. Proper oversize bearing selection is critical to maintaining correct oil pressure, reducing friction, and preventing premature crankshaft or block damage. The Cummins 3802211 main bearing kit is commonly installed during engine overhauls, bottom-end rebuilds, and crankshaft reconditioning projects where standard bearings are no longer suitable. When paired with a properly ground crankshaft, these oversize bearings help restore factory-level performance and reliability. This bearing set is ideal for professional engine builders, diesel repair shops, and fleet maintenance operations servicing Cummins 8.3L engines.