NTA855 Cummins Main Bearing Set 3801261 Parts Catalog Ref No. Part Name Part No. Required 1 Rectangular Key 210179 1 2 Crankshaft Gear 3014614 1 3 Engine Crankshaft 3608833 1 4 Ring Dowel 3037045 7 　 Main Bearing-Standard Set 3801260 1 5 Main Bearing 3019174 3 6 Main Bearing 3019180 3 7 Main Bearing 3019186 3 8 Main Bearing 3019192 …