New genuine Delphi Cummins diesel fuel injection pump for the 4b 3.9L Cummins diesel engine. See pictures for details. Message us with questions. Delphi Part number 3348F532. Cummins part number 3280799. 52cc Fuel at 1500rpm with a 1570rpm 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.