The new Caterpillar on-highway engine line consists of four models the C7, C9, C13, ... This 12.5-liter engine delivers 1,150-1,750 ft-lb of torque at 1,200 rpm.

For on-highway vocational and heavy-duty linehaul operations, the C13 will continue to be available. The 12.5 litre powerplant delivers 1,150-1,750 lb. ft. of torque at 1,200 RPM, Caterpillar ...

The 12.5L engine will be available in ratings of 380 to 470 hp for on-highway models, 305 to 370 hp for vocational models and 485 to 525 for fire-truck versions, all at 2,100 rpm with peak torques ...