The below engine parts Cummins rocker lever 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. Rocker Lever Cover 3038938 DCEC Rocker Arm 3934920 Rocker Lever Cover 3039006 DCEC Rocker Arm 3960942 Rocker Lever Cover 3047710 DCEC Rocker Arm 3900494 Rocker Lever Cover …