This is a A-4090035 Upper Gasket Set PN: 4090035Main Description As Following : A-4090035 Gasket Set; Upper P.N: 4090035 A-4090035 Gasket Set; Upper P.N: 4090035 Replaces: C4090035 MAXIFORCE Found in Section & Models : Engine Parts > Gaskets, Cummins ENGINE: 5.9L ISB SERIES, Engine Parts > 6-590TA Turbo Charged-Aftercooled Cummins "ISB" Series, Cummins ENGINE: 5.9L ISB SERIES Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada