Chrysler says its sales last month rose 4 percent from a year ago for the company's best February since 2008.
The automaker says it sold just over 139,000 cars and trucks last month.
The increase is a sign that U.S. auto sales remain strong even in an uneven economy. Industry analysts expect an overall increase of 7 percent when automakers report results on Friday.
Chrysler sales were led by the Dodge Avenger midsize sedan with a 52 percent increase. Ram pickup sales were up 3 percent for the best February since 2007.
But Chrysler's torrid pace of growth is starting to slow. In 2012, the company's U.S. sales rose 21 percent.
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