The below engine parts Cummins oil coolers 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. Oil Cooler Core 4095097 DCEC Oil Cooler Core 3959031 Oil Cooler Cover 3090144 DCEC Oil Cooler Core 3975818 Oil Cooler Cover 3090241 DCEC Oil Cooler Core 4965482 …