2025 Ram 3500 Limited Longhorn Driving Video

The all-new 6.7-liter Cummins High-Output Turbo Diesel is rated at 430 horsepower and 1,075 lb.-ft. of torque. A redesigned block and head, robust heavy-duty pistons, new performance intake manifold, improved intake/exhaust port flow, a new turbo, larger cylinder heads, bigger valves and a higher-pressure fuel system enhance the diesel’s hallmark durability and efficiency.

To make service easier, and improve air flow and performance, the new Cummins engine uses improved intake port geometry for top feed injectors, top load lubrication and integrated fuel filters. Helping customers in extremely cold environments, the Cummins High-Output Turbo Diesel uses glow plugs for quicker starts. Noise, vibration and harshness were reduced using helical transmission gears.