Engines
Lifecycle Analysis of U.S. Medium- and Heavy-Duty Vehicle Fuel Pathways
Mar 10, 202624 min read
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TodayPolicy, regulation, engines, emission norms and clean-fuel intelligence for decision makers.
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Source: Cummins, Stellantis
Cummins and Stellantis have announced the launch of a new 2025 6.7L engine paired with the RAM lineup of pickup and chassis cab heavy-duty trucks. The engine is certified to EPA and California standards.
Improvements (engine and vehicle)
No details have been released yet on the emissions control system. Likely it retains the previous generation system (DOC, DPF, SCR, AmOx catalyst) and that it does not certify to MY 2024 California low NOx standards - or it would have been called out.
We have summarized the recently announced low NOx engines for long-haul trucks separately (link below) and will report on the details here when available. Sign up below to stay informed.
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