I am trying to find some info, mainly the year of manufacture, on a cummins 4-390 engine. The ESN is 45367682. Part number is 1989074C2.
Just call your local Cummins regional store, they can look up that serial # in no time. Cummins Quick Serve online doesn't work half the time anymore. So less BS if you just call Cummins. A Cummins parts department can give you all of the engine spec's.