Cummins and Navistar extended 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,” Srikanth Padmanabhan, president of engine business at Cummins, said. “Navistar is a critical partner to Cummins and we believe the International LT Series trucks paired with the Cummins X15TM Efficiency Series and Eaton Cummins Endurant HD transmission provides the best fuel economy, improved uptime and overall TCO for our mutual long haul customers.”

This year, Cummins launched its 2021 greenhouse gas compliant X15 Efficiency Series engine, which will be used by International Truck customers.

“The Cummins engine paired with Navistar International vehicles showcase technology-driven innovation that delivers the performance heavy-duty customers have come to expect to meet the demanding transportation needs of today and tomorrow,” Padmanabhan said. “Extending this relationship through a long-term partnership ensures that both companies will be able to collaborate and meet the challenges of the next emissions cycles and beyond.”

The Cummins B6.7 and L9 engines will continue to power the International MV and HV Series trucks, as well as Navistar’s IC Bus CE and RE Series school busses.

“This new long-term agreement with Cummins, in combination with our proprietary powertrains, will offer International customers the most competitive and fuel efficient engines in the market while reducing our investment requirements to meet future emissions regulations,” Phil Christman, president of operations for Navistar, said. “The extension of our partnership allows both companies to optimize future research and development investments in existing technologies as well as the flexibility to invest in advanced technologies.”

Cummins is a global power provider that designs, manufactures, distributes and services a portfolio of power solutions, ranging from diesel, natural gas, electric and hybrid powertrains, and powertrain-related components, including filtration, aftertreatment, turbochargers, fuel systems, controls systems, air handling systems, automated transmissions, electric power generation systems, batteries, electrified power systems, hydrogen generation and fuel cell products.

Navistar is a holding company whose subsidiaries and affiliates produce International brand commercial trucks, proprietary diesel engines and IC Bus brand buses.