The below engine parts Cummins alternator 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. Alternator Bracket 4940562 DCEC alternator 3284392 Alternator ASSY 4944738 DCEC alternator 3972730 Alternator Bracket 4946367 DCEC alternator 4892318 DCEC Alternator 4984043 DCEC alternator 3964745 DCEC Alternator 3282516 DCEC …