Cummins to be phased out in MY-2027 engines due to EPA NOx rule
July 23, 2026 12:45 PM, EDT Cummins unveiled its 2027 EPA-compliant engine at the Technology and Maintenance Council annual meeting in March. (Seth Clevenger/Transportation Topics) key takeaways: Cummins plans limited production of its model year 2027 X15 and X10 engines starting in January. The OEM will continue to offer the current generation engines during the