Brand new genuine Delphi diesel injection pump for the 4BT Cummins diesel engine on a generator. This is not a cheap chinese knock off. See pictures for details. Message us with questions. Cummins part number 3912849. Delphi Part number 3042F501. This fits a generator set for 1570RPM which is for a 50hz genset. The high idle can be turned up for a 60hz application. 12v shut off solenoid. If your core is not the same, send us the part number and we will most likely be interested in it either way.