The below engine parts Cummins gsaket 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. DCEC Gasket 6CT8.3 3969609 DCEC Gasket 4BT3.9 3283338 DCEC Gasket 6CT8.3 3938267 DCEC Gasket 4BT3.9 3283336 DCEC Gasket 6CT8.3 3935587 DCEC Gasket 4BT3.9 3279276 DCEC Gasket 6CT8.3 3935586 …