Caterpillar C13

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The Caterpillar C13 is an inline six cylinder, 12.5 litre heavy duty diesel engine. For the motorcoach market, it is available in rating of 380 to 430 horsepower.

The C13 with 2007 ACERT technology to meet EPA 2007 emissions features a variable nozzle turbocharger and ADEM A4 electronic controls. Also as part of CAT's ACERT technology for 2007, the C13 uses Clean Gas Induction (CGI) and particulate filter with Cat Regeneration System (CRS). CGI works by drawing a small amount of non-combustible gas is after passing through the engine’s aftertreatment system. Because the gas has passed through the diesel particulate filter, most contaminants have been removed. Next, the gas is then cooled, blended with more incoming cool and clean air, and then returned to the combustion chamber.

In 2008, Caterpillar has announced that they will not be updating their engines for EPA 2010 certification, and will exit the on-highway engine business entirely. The C13 has been discontinued as of 2010.

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