In addition to dual turbochargers you see stacked in series, this C13 ACERT engine (like the C11) receives a new cross-flow head, larger oil sump, higher compression ratio, and rotating components ...
The CT15 joins the CT11 and CT13 as the third engine option for Cat's Class 8 CT660. The 15-liter engine is available with as much as 550 horsepower and 1,850 pouds-feet of torque. The CT15 starts ...