This is a new turbo for the 2004.5-2007 6.7 Cummins. This is a new turbo and does not require a core. It does not include the oxygen sensor in the compressor housing. Includes oil drain gasket and manifold gasket. 1 year warranty.

Cross Reference Numbers: 4043600, 4089673, 4089673NX, 4089673RX, 4089797, 408979700, 4089797NX, 4089797RX, 4036835, 4037002, 4089797, 4037001, 5143256AA, R5143256AA