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Caterpillar Inc. will pay $2.55 million to the federal government and California to settle claims it sold engines without proper emissions controls and violated emission control reporting and engine labeling regulations, the Environmental Protection Agency said.

Heavy equipment maker Caterpillar Inc. said Friday its first-quarter profit more than quintupled on higher sales, and its boosted its full-year earnings outlook.

LAS VEGAS — Caterpillar Inc., the construction-equipment manufacturer which dropped out of the Class 8 engine market two years ago, entered the on-highway vocational truck market last week with the introduction of the first in a line of Caterpillar-branded severe-service trucks.

Caterpillar Inc. said it considering selling part of its logistics business.

Heavy equipment maker Caterpillar Inc. said Thursday its fourth-quarter net income more than quadrupled on higher sales.

Heavy-equipment maker Caterpillar Inc. said Monday it will buy a mining equipment company in a deal valued at more than $8 billion.

Three trucking companies are suing Caterpillar Inc. over the sale of what their legal counsel says are “defective” 13- and 15- liter diesel engines for heavy-duty trucks. The Texas law firm representing the companies now is looking for fleets to join the litigation.

Heavy equipment maker Caterpillar Inc. said Thursday its second-quarter net income jumped 91% on higher worldwide sales of industrial equipment.

Heavy equipment maker Caterpillar Inc. Monday reported a first-quarter profit compared with a loss a year ago, and boosted its sales and income forecast for the year.