Main Bearing Set

The Cummins 3800298 Main Bearing Set (Standard) is a high-quality replacement component designed for Cummins ISX and QSX series engines. This set includes precision-engineered main bearings that provide critical support for the crankshaft, ensuring smooth rotation and reducing friction during engine operation. Manufactured to OEM specifications, it offers excellent durability, wear resistance, and consistent performance under heavy-duty conditions. Ideal for engine rebuilds or repairs, this bearing set helps maintain optimal engine efficiency and longevity.