Reply To: Cummins QSC 8.3 L

[Tony Athens]

Mark,

The QSC 8.3 has shown to be a rock solid engine as long as you understand how to deal with the “weak points”–The aftercooler being the biggest weak link.. I watch over plenty of them with well over 5000 hours and at least one pair in the 15000 hours range with never a head pulled..

The raw water pump for this engine has has been very good..

Go fishing, learn how to fresh water flush your engines, maybe install a 250W oil pan heater , look at your prop curve for the model you have and be sure your CRUISING RPM vs, Fuel burn are not over the “prop demand curve ( lower line) and worry much much less..

Tony