The X15 and X12 lineup is our best yet—giving you the power to perform, deliver, and save.
Have it all with the 2024 X15 and X12 powertrain lineup.
With a focus of uptime, total cost of ownership and ease of operations, the Cummins heavy-duty platforms bring you the best 15-liter and 12-liter engines yet. Starting with the most reliable 15-liter ever produced, to offering EX ratings for enhanced driver performance, the X15 and X12 give you the confidence needed to improve your business without sacrificing anything.
"The real world is the lab that matters"
—Devon Simper, Operations Manager for Savage Trucking
The Cummins X15 answers our fleet partners' needs for reliable and durable performance. Take it from Savage Trucking—the Cummins X15 engines enable their trucks to pull 129,000 pound loads at altitudes 9,000 feet above sea level across the American West.
Watch how Cummins pushes their fleet to maximize performance and efficiency.
Featured Heavy-duty engine
X15N
Discover the industry’s first big bore natural gas engine that delivers solutions for a range of long-haul applications. With power ratings up to 500 hp and torque up to 1850 lb-ft, this engine will revolutionize transportation and your application needs.
Power under weight-sensitive applications
Featured Heavy-duty engine
X12 (2024)
The X12 is designed to give weight-sensitive applications maximum payload. And at just 2,050 lbs., the X12 is at least 150 lbs. lighter than the lightest competitive 11L engine, yet it still delivers powerful performance from 350-500 HP and 1250-1700 lb-ft Torque. With the response and power of larger displacement engines, the X12 delivers the performance drivers desire while maximizing efficiency for every job.
Learn about tomorrow - today
Featured Heavy-duty engine
The Next Generation X15
Introducing the next generation X15. The next step in the Cummins fuel-agnostic 15-liter platform. Offering up to 605 hp and 2,050 lb-ft torque, this engine demonstrates our continues commitment to the evolution of internal combustion technology.
Featured Heavy-duty engine
X10
Introducing the new Cummins X10, a next generation engine that brings a state-of-the-art platform to medium-duty, heavy-duty, vocational, and transit bus applications, launching in North America in 2026. This engine is uniquely positioned to replace both the L9 and X12.
Cummins Inc. is strengthened through its deep history of commitment to diversity, equity and inclusion. The company’s Global Disability Inclusion Initiative aims to create accessible, inclusive workplaces where people with disabilities are enabled to fulfill their potential. Our progress in support of this commitment is celebrated as Cummins earns the distinction of “Best Place to Work for Disabil
Cummins Inc. engineers, technicians and technologists are no strangers to setting records in the industry, especially when it comes to powering the success of customers. Since Clessie Cummins’ first two patents awarded in 1921, Cummins engineers have continued to foster invention and innovation year after year. In 2017, Cummins engineers and scientists set a record after receiving 287 patents f
With over a century of innovation under its belt, Cummins Inc. has celebrated countless milestones along its journey, and 2022 was no exception with numerous entries added to the list. As Cummins continues investing in key technologies to advance its path to zero emissions strategy – Destination Zero – to reduce greenhouse gas emissions and lower the air quality impacts of its products on the plan
Strengthening global communities has long been an important objective for Cummins. Company employees around the world participate in numerous community initiatives through Cummins’ Every Employee Every Community (EEEC) program. A global network of more than 200 employee-led Community Involvement Teams (CITs) work with Cummins leaders and community partners to assess environmental issues
This article originally authored by Tom Linebarger, Cummins Executive Chairman and posted internally on October 31, 2022 for employees to recognize the anniversary of the Cummins Advocating for Racial Equity (CARE) program. Today, I want to celebrate and recognize the incredible work accomplished through the Cummins Advocating for Racial Equity (CARE) initiative since its launch in Oc
Appreciating historic cars is a passion held by car enthusiasts and organizations the world over. One such organization is the Auburn Cord Duesenberg (ACD) auto club. ACD meets annually to commemorate the historic automobiles that trace their roots back to Connersville “Little Detroit” Indiana. In August, Cummins was invited to display its 1935 white Auburn 655 diesel car at ACD’s mini-meet. “T
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