Product Overview
4955566 3973745 6BT QSB Rear Crankshaft Oil Seal. Product type: Rear Crankshaft Oil Seal. Part number(s): 4955566, 3973745. Engine/model: 6BT, QSB. Application notes: rear crankshaft oil seal for Cummins 6BT, QSB engine applications. Please verify final fitment by part number, engine serial number, and application before publishing or ordering.









