Caterpillar

By Heather Burlingame, Senior Production Editor | September 28, 2010

Available in mid 2004, the C18—the company's first off-highway ACERT engine—has five ratings from 575 to 765 horsepower. To meet emissions requirements, ACERT engines have a cross-flow design with four valves per cylinder, which provides improved air distribution and reduced emissions. Multiple injection and rate-shaping capability help control fuel, which also helps reduce emissions.

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