Engine Development
Cummins announces latest X15 capable of meeting MY2027 EPA regulations
48V electric heater provides early SCR warm-up to improve NOx conversion
Cummins has announced the next generation X15 diesel engine, as part of its HELMTM 15L fuel agnostic platform, offering ratings up to 605 hp / 2,050 lb-ft and meeting the MY 2027 EPA/CARB Low NOx regulations.
Sign up here to receive such summaries and a monthly newsletter highlighting the latest developments in transport decarbonization
5-Min Monthly
Sign-up to receive newsletter via email
Thank you!
You have successfully joined our subscriber list.
Recent Posts

EPA Demands Manufacturer Data as It Expands Action on DEF System Failures
February 15, 2026
No Comments
![]()
A brief summary of recent EPA changes to DEF-related failures.

EPA repeals 2009 GHG endangerment finding
February 12, 2026
No Comments
![]()
The US EPA is repealing the 2009 GHG endangerment finding and terminating all vehicular GHG standards.

Efficiency of EVs in US and China
January 25, 2026
No Comments
![]()
China has set energy efficiency norms for electric vehicles – how do modern EVs fare?
Tagged diesel, Heavy-duty, NOx, scr, Trucks