Spec Value Rated rpm 3500 Crankshaft Power, kW (kW) 243 Crankshaft Power, hp (hp) 330 Rating Rating 4 Emission compliance IMO Nox Tier II, EU RCD Stage II, EPA Tier 3 Number of Cylinders 6 Aspiration Turbo with charge air cooler High-pressure fuel injection Common-rail fuel injection Control system Electronic Vessel Control Cooling system Heat Exchanger Cooling, Keel Cooling Rated rpm 3500 Crankshaft Power, kW (kW) 243 Cran 235 Displacement (L) 5.5