The X15 and Endurant Pairing from the Cummins Integrated Power Portfolio is Now Available in Both International Lonestar and LT Series

Columbus, Indiana


Cummins Inc.'s (NYSE: CMI) latest integrated diesel power solution from the Cummins Integrated Power portfolio – the X15 paired with the Endurant transmission – is now available with Navistar in both the International LoneStar and LT Series trucks.

"As part of our Cummins Integrated Power portfolio, we’ve strategically paired the X15, which was the number one selling heavy-duty engine in North America in 2017, with the Endurant transmission to offer a low total cost of ownership for our customers while optimizing efficiency and delivering the performance our customers demand," said Brett Merrit, Vice President – Cummins On-Highway Engine Business.

When looking across the lifecycle of the powertrain, customers will be faced with fewer maintenance events, leading to less time and money spent in the shop, and more time available to focus on their business. The X15 features a 50,000 mile oil drain interval that can be extended up to 80,000 through the Cummins OilGuard program. The Endurant transmission boasts a maintenance-free self-adjusting clutch thanks to advanced clutch prognostics. In addition, the Endurant’s 750,000 mile transmission oil drain interval is the longest in the industry while only consuming half the amount of oil as competitive automated transmissions.

"Cummins knowledge and experience in integrating key powertrain technologies has served our customers well over the years," said Jim Nachtman, International Heavy-Duty Product Marketing Director. "By offering the X15 and Endurant solution from the Cummins Integrated Power portfolio, we know we’re providing our customers a solution that will help keep their operating costs low while still delivering the power they need to get their job done."

With deeper integration through the Eaton Cummins joint venture, the engine and transmission are able to communicate seamlessly, optimizing both performance and efficiency of the powertrain, meaning that Cummins Integrated Power solutions will continue to deliver benefits for customers‘ operations.

About Cummins Integrated Power

Cummins Integrated Power is Cummins portfolio of expertly paired engines and transmissions, componentry, advanced electronic engine features and connected technologies.  As a global, independent supplier, Cummins has the broadest portfolio of integrated power, whether diesel, natural gas, hybrid or electric technology so that customers have the option to choose the right power solution for their unique needs. 

About Cummins Inc.

Cummins Inc., a global power leader, is a corporation of complementary business segments that design, manufacture, distribute and service a broad portfolio of power solutions. The company’s products range 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. Headquartered in Columbus, Indiana (U.S.), since its founding in 1919, Cummins employs approximately 61,600 people committed to powering a more prosperous world through three global corporate responsibility priorities critical to healthy communities: education, environment and equality of opportunity. Cummins serves its customers online, through a network of company-owned and independent distributor locations, and through thousands of dealer locations worldwide and earned about $2.3 billion on sales of $23.6 billion in 2019. See how Cummins is powering a world that’s always on by accessing news releases and more information at

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