INDIANAPOLIS, Ind. – Cummins Inc. and Navistar International Corporation recently announced another step forward in their partnership by extending their long-term agreement through the next two emission cycles, with Cummins selected as Navistar’s preferred supplier of medium-duty and heavy-duty big bore engines for International Trucks and IC Buses in the U.S. and Canada.
“We’re excited to deepen what is an already strong partnership with Navistar, spanning more than 80 years,” said Srikanth Padmanabhan, President, Engine Business at Cummins Inc. “Navistar is a critical partner to Cummins and we provide the best fuel economy, improved uptime, and overall TCO for our mutual long haul customers.”
The company says that with its successful launch of the 2021 Greenhouse Gas complaint X15 Efficiency Series engine this year, International Truck customers receive the most reliable and highly fuel-efficient 15-liter product available.





