A lawsuit claims that Cummins and Ram misrepresented the performance of Heavy Duty trucks with diesel defeat devices.

Related: 2023 Ram 2500 Heavy Duty Rebel Quick Spin: Finally, a Diesel Power Wagon (Sort Of) Technology updates include new, larger screens and advanced towing tech that brings Ram’s heavy-duty ...

Available in 2500 and 3500 form, the Ram HD is powered by a standard 410-horsepower, 6.4-liter V-8 engine paired with an eight-speed automatic transmission. Optional is a Cummins turbo-diesel 6.7 ...

Ram is updating its Heavy Duty truck lineup for 2025 and is making its high-output Cummins diesel the only available ... Powering the most basic Ram 2500 and 3500 pickups is still the 6.4-liter ...