Brand new genuine Delphi diesel injection pump for the 4BT Cummins diesel engine. This is not a cheap chinese knock off. See pictures for details. Message us with questions. Cummins part number 3925689. Delphi Part number 3042F390. Engine is set for 2725rpm high idle. If your core is not the same, send us the part number and we will most likely be interested in it either way.