The Cummins 3011884-20-FC cylinder liner insert is compatible with KTA38, QSK38, KTA50, and QSK50 applications.
OEM Cross Reference: 3011884, 3011884-20,3011884-20-FC
The 3634664-20-FC cylinder head gasket is compatible with KTA19, KTA38, KTA50, QSK19, QSK38, and QSK50 engines.
OEM Cross Reference: 3634664, 3634664-20, 3634664-20-FC