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Caterpillar's Cat C13 engine is a six-cylinder diesel engine engineered for use in either on-highway hauling or vocational vehicle applications. Not only is it engineered to run for 1,000,000 highway miles, but it is also designed to meet the Environmental Protection Agency's stringent standards released in 2007 for reduced diesel soot emissions.
Weighing 2,610 lb, the C13 has a displacement of 12.5 L. Each of its six in-line cylinders have a bore and stroke of 5.12 and 6.18 inches, respectively.
Caterpillar designed the C13 to meet the Environmental Protection Agency's 2007 standards for reduced emissions. One of its key features is a diesel particulate filter, or DPF, which captures soot particles and uses a self-regeneration system to automatically burn off the collected soot.
Depending on the application and the installation, the C13 can produce as little as 350 and as much as 525 horsepower when running at 2,100 rpm. Applications such as vocational trucks and buses require the least power, typically falling between 305 and 370 horsepower while fire trucks and recreational vehicles typically require the most — between 485 and 525 horsepower.
As with horsepower, the C13's torque production varies depending on how it is installed. At the lowest end of power, it still generates 1,150 foot-pounds of torque. 525 horsepower installations, though, result in the C13 outputting 1,750 ft-lb of torque. In either case, it produces its maximum torque at a relatively low speed of 1,200 rpm.
- diesel storage tank image by Jim Parkin from Fotolia.com