LISLE -- Navistar International Corp. finalized an agreement to have Cummins Inc. supply heavy-duty diesel engines and emissions aftertreatment technologies for Navistar-built trucks.
Navistar said the Cummins ISX15 engine will be offered in its International ProStar+, PayStar and 9900 models. In addition, Navistar will utilize the proven Cummins Emission Solutions aftertreatment system for the company's own heavy-duty engines.
"This agreement represents a natural extension of the long-standing relationship between Navistar and Cummins and our history of collaboration in serving our mutual customers," said Troy Clarke, Navistar president and COO. "With the addition of the Cummins ISX15 and the use of the proven Cummins aftertreatment system, we are on a clear path to providing customers with proven, reliable and fuel-efficient clean engine technology."
Navistar vehicles with the new engines will begin first customer shipments in December. The International ProStar+ with MaxxForce 13 and the Cummins Emission Solutions SCR-based aftertreatment system will enter begin regular production in April 2013.
The remaining lineup of heavy-duty truck models will transition to SCR-based clean engine technology in a phased launch throughout 2013 based on volume and customer demand, the company said.
The agreement helps bring the global truck maker in compliance with current EPA emission regulations. The company was unable to meet tightened truck emission standards this year, and had been selling non-complaint engines and paying fines to the EPA, but that arrangement was challenged in court last spring by Mack Trucks Inc. and Volvo Group North America LLC.
The court said the EPA did not follow proper procedures in adopting the rule with Navistar. But the EPA in August revised its ruling with Navistar, fining the company up to $3,800 per noncompliant engine.
•Daily Herald news services contributed to this report