Caterpillar released the biggest horsepower rating for an on-highway tractor with its introduction of the 625-hp “King of the Hill” C15 model.
The engine, which also comes in a 600-hp rating, is equipped with the company’s ACERT Technology to meet federal emissions standards.
The engine features 2,050 pounds-feet of torque at 1,200 rpm and constant torque at 1,700 rpm. The new C15 is designed for heavy haulers and owner-operators. Maximum horsepower is achieved at 1,800 rpm, with 595 hp at 2,100 rpm. The rating features a 38 percent torque rise.
While the engine is based on the 550-hp C15 design, it has higher flow series turbochargers, a unique camshaft and a more powerful electronic control module. It is available with two different engine retarders.
The company also announced additional ratings for its C13: