This is the older style Cummins 3.9 oil pump that was made in England by Concentric manufacturing for Cummins and designed in the USA by Cummins. This specific unit has relative wear and use on it but is a fully functional unit! The part number for this genuine Cummins oil pump is: 70720c by Concentric. Please refer to all photos provided and the part number given for fitment. Thank you for choosing EKG!