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 ...

A federal appeals court has thrown out an Environmental Protection Agency rule that allowed Navistar Inc. to pay penalties while it continued to sell engines that did not meet 2010 federal emissions ...

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 ...

Navistar International Corp. announced Tuesday, Jan. 27, that it will close its Indianapolis engine plant and Indianapolis Casting Corp. (ICC) foundry as a result of changes in its business ...

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 ...

Agency says company could go out of business if fine is not allowed. Navistar International Corp. will be able to sell engines that do not meet 2010 emissions standards — but the company will pay a ...

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 ...