Cat C12 ACERT Diesel Marine Propulsion Engines, with ratings of 669-715 mhp (660-705 bhp) at 2300 rpm, meet IMO II emission standards. The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy.

Caterpillar C12 Engines\n\n The horsepower of the C12 is 430 (mph) change to (HP). The peak torque rating of this engine is 1,650 ft-lb at 1,200 rpm, with the torque rise percentage at 53 percent. This engine is air and liquid cooled, and the cooling system holds 2.7 gallons of coolant.