... )Engine: Cummins made in china .freshsea water cooling system; heat exchange; Fresh, sea water pump; expansion tank.2)Alternator: Stamford ... bearing,Anti-condensation heater.3)Engine protecting system: High speed, High water temperature, Low oil Pressure.4)Both engine ... 5)24V DC electric system with battery6)control panel with voltage, ampere, frequency, oil pressure, water temperature, hour meter, ...