The below engine parts Cummins oil seal are for the 4BT3.9/6BT5.9/6CT8.3/6LT8.9/ISDe/ISLe/ISZ/M11/NT855/ KT19/KT38/KT50/ISF2.8/ISF3.8/ISM11/QSM11 series Cummins engine. Part Name Part No. Part Name Part No. SEAL,VALVE STEM 4976170F DCEC oil seal 3862674 SEAL,OIL 3968563F DCEC oil seal 3920147 SEAL,OIL 4890832F DCEC oil seal 3016791 SEAL,OIL 4938765F DCEC oil seal 3020186 Front Crankshaft …