OEM Cummins Inlet DOC, 5509707

NEW OEM CUMMINS 5509707 Inlet Catalyst Module Replaces OEM numbers: 5509707, A072H571 This is not an aftermarket part, it is OEM. Used on EPA21 12 & 15 liter ISX/QSX engines These units are OEM "take-offs", they are brand new and unused but do not come in Cummins retail packaging. We buy complete units from Cummins and then break them down so that we can sell the pieces individually. Due to this, there may be paint marks or minor cosmetic blemishes, but we assure you they are brand new and genuine. Surplus units are nonreturnable so please make sure it is the correct application prior to ordering