The crankshaft is the most critical part of the engine. It bears the force transmitted by the con-rod and converts it into torque to output through the crankshaft and drive other accessories on the engine to work. 6B5.9 Crankshaft is for Cummins B Series 6 Cylinder 5.9L mechanical engines. When you have to replace the engine crankshaft, then you will have to replace the parts below:
Main Bearing Set (Upper Bearing , Lower Bearing & Thrust Bearing)
Connecting Rod Bearing Set (Upper and Lower Bearsings)
Upper Gasket Kit
Lower Gasket Kit
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