Description

The Cummins Main Bearing Set 3802212 (0.50 mm / .020” Oversize) is a precision-engineered bearing kit designed for Cummins 6C family 8.3 diesel engines , including 6CT and 6CTA 8.3 applications. This oversize main bearing set is used when the crankshaft has been machined beyond .010” to correct wear, scoring, or journal damage, restoring proper oil clearance and crankshaft support. Manufactured to OEM specifications , these .020” oversize Cummins main bearings are produced from high-quality bearing materials that deliver excellent load capacity, fatigue resistance, and consistent lubrication under heavy-duty operating conditions. Correct oversize bearing selection is essential to maintaining proper oil pressure, reducing friction, and preventing premature crankshaft or block damage. The Cummins 3802212 main bearing set is commonly installed during engine overhauls, bottom-end rebuilds, and crankshaft reconditioning projects where standard or .010” oversize bearings are no longer suitable. When paired with a properly reground crankshaft, these bearings help restore factory-level performance and long-term engine reliability. This bearing set is ideal for professional engine builders, diesel repair facilities, and fleet maintenance programs servicing Cummins 8.3L engines.