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LOUISVILLE, Ky. — Independent engine maker Cummins Inc. said it is introducing its “SuperTruck” research done in conjunction with Paccar Inc. into commercial production between now and the end of this decade, with much of it expected in 2016 or 2017, when the federal government is scheduled to tighten its standards for truck engine fuel economy.

LOUISVILLE, Ky. — Truck manufacturers and related suppliers are planning to showcase the diversity of their offerings in presentations at the Mid-America Trucking Show, which runs this week here at the Kentucky Exposition Center.

Engine maker Cummins Inc. and component manufacturer Eaton Corp. unveiled a new powertrain package for the North American heavy-duty truck market that they said will boost fuel economy by 3% to 6%.

Navistar International Corp. said its first-quarter loss declined from a year ago, and the company named Troy Clarke its new CEO, replacing Lewis Campbell, who is stepping down.

NASHVILLE, Tenn. — Martin Daum, president of Daimler Trucks North America, said the company’s previously announced layoffs at its production facilities will be “significantly lower” than the 1,300 jobs it had projected earlier this year.

LOUISVILLE, Ky. - Volvo Trucks said it has expanded its remote diagnostics tool as a standard feature on its entire North American product line.

Louisville, Ky. - The American Truck Dealers named Kenworth Truck Co.’s T680 the winner of its Class 8 truck of the year Sunday at ATD’s annual conference in Orlando, Fla.

The Federal Motor Carrier Safety Administration has begun distributing cards to truck drivers warning them that using navigation GPS devices meant for smaller vehicles can be dangerous and could lead to trucks hitting low bridges.

North America’s heavy-duty truck makers and many major suppliers hope to reignite slumping heavy-duty sales when the Mid-America Trucking Show begins this week at the Kentucky Exposition Center in Louisville.