Caterpillar’s line of medium- and heavy-duty engines – the C7, C9, C13 and C15 – will continue to rely on its ACERT technology to meet 2007 emissions standards and will be available beginning in the fourth quarter of 2006, the company said Wednesday, March 22 at the Mid-America Trucking Show.
Cat’s enhanced ACERT for 2007 will recirculate a small amount of exhaust gas that has already passed through its diesel particulate filter, cooling it and mixing it with fresh air before it is reintroduced into the combustion chamber.
At the top end, Cat’s heavy-duty, 15.2-liter C15 engine features ratings from 435 to 625 with torque ratings of 1,550-1,850 lb-ft. The 625 hp C15 has a torque rating of 1,850-2,150 lb-ft. The 12.5-liter C13 is available in on-highway vocational and heavy-duty linehaul configurations. Horsepower ratings run from 305 to 370 and torque 1,150 to 1,750 lb-ft.
The 9.3-liter C9 provides heavy-duty power in a lightweight package. Horsepower ratings for the C9 range from 285 to 350 hp and torque ratings range 890-1,350 lb-ft. The mid-range C7 engine provides truck ratings of 190-300 hp. The 7.2-liter engine provides 520-860 lb-ft. of torque at 1,440 rpm. This versatile engine is a popular choice for a variety of medium-duty applications.