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The addition of selective catalytic reduction and diesel particulate filter aftertreatment to modern trucks forced fleets and manufacturers to shift expectations on the fly. These two fleets met the emissions maintenance monster head-on — and won.

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Cummins Emissions Recall Includes Over 500,000 Engines

Over half a million engines have been voluntarily recalled by Cummins as the result of defective emissions equipment. The recall was the result of a CARB investigation and affects owners of vehicles with 2010-2015 model year Cummins engines.

Navistar Executives Look to the Future

After a tough run earlier this decade, Navistar told trucking reporters it is "back in business," touting its new and improved product line, a booming vocational market and a strong economy.

Navistar Hit With $30.8 Million Judgment in ProStar/MaxxForce Lawsuit

Navistar Inc. disputes allegations that it didn’t thoroughly test its MaxxForce EGR engines – allegations that surfaced in a lawsuit where a jury last week awarded $30.8 million in damages – including testimony about the engine program by former executive Jim Hebe that the company "did not test s**t".

Judge Rules SEC Suit Against Former Navistar Exec Can Proceed

Daniel C. Ustian, former chairman and CEO of Navistar International, had promoted a unique diesel exhaust emissions solution. But the Securities and Exchange Commission has charged in a suit that he knew it couldn’t work, with subsequent losses to company investors.

Navistar Fined $7.5M in Truck Emission Case

The Securities and Exchange Commission on Thursday charged Navistar International Corp. with misleading investors about its development of an advanced technology truck engine that could be certified to meet U.S. emission standards.

Mack Offers Single-Package Aftertreatment System

The Mack ClearTech One is a single-package exhaust aftertreatment system that combines the diesel particulate filter, selective catalytic reduction and diesel exhaust fluid dosing system into one unit.