Navistar Inc.’s 2009-2010 “transition” strategy for exhaust-emissions compliance has led to a lawsuit filed on Wednesday by the U.S. Environmental Protection Agency. EPA claims 7,750 Navistar diesels ...

Navistar International Corp. said its switch to diesel exhaust aftreatment will include use of Cummins liquid urea injection equipment, and that it will offer the Cummins ISX15 engine in some truck ...

June has been a busy month for Navistar. To recap, a federal court tossed out the U.S. EPA ruling allowing Navistar to sell noncompliant engines. Then reports surfaced of suitors—welcome or ...

Effective at this year's end, Ford and Navistar will restructure their existing business relationship and end their diesel engine supply contract, which dates back to 1979. Ford and Navistar had been ...

This story appears in the Jan. 30 print edition of Transport Topics. The Environmental Protection Agency said it would impose a penalty of about $1,900 per engine against Navistar Inc., beginning as ...

2001: The Environmental Protection Agency enacts a rule requiring a 95 percent reduction in the emissions of nitrogen oxide from heavy duty diesel engines. Manufacturers have until 2010 to comply.

Click here to write a Letter to the Editor. Navistar International Corp. said Monday it is suspending production of a diesel engine it builds for Ford Motor Co. because Ford has stopped honoring ...

Navistar has agreed to pay a $52 million civil fine and to mitigate at least 10,000 tons of oxides of nitrogen (NOx) emissions to resolve violations of the Clean Air Act. The Environmental Protection ...

WASHINGTON -- Engine manufacturer Navistar International Corp. will pay a $52 million civil penalty and has agreed to prevent at least 10,000 tons of oxides of nitrogen (NOx) emissions in a settlement ...