Convenient, Reliable Emissions Solutions
Navistar was the first North American engine manufacturer to release a smokeless diesel engine.
We worked with the U.S. Environmental Protection Agency to advocate reducing the sulfur content of diesel fuel.
We were the first truck and engine manufacturer certified by the EPA for meeting 2007 standards for particulate matter and hydrocarbons—six years ahead of requirements.
Our heavy truck and engine combinations are SCR based and EPA certified.
In 2014, we announced a new propane school bus option, the IC Bus™ CE series PSI—a clean option that doesn't sacrifice power, torque or durability.