2019 - 2026 6.7L Dodge Cummins

The 6.7L Cummins found in the 2019–2026 Ram 2500 and 3500 is an inline six-cylinder (I6) turbo diesel engine. This generation is often referred to as the "fifth generation" of the Ram Heavy Duty, featuring significant updates over previous years, including a compacted graphite iron (CGI) block for reduced weight and increased strength.

This engine is available in two distinct output levels, depending on the truck model:
  • Standard-Output (SO): Found in both the Ram 2500 and 3500. It typically produces 370 horsepower and 850 lb-ft of torque.
  • High-Output (HO): Available exclusively in the Ram 3500. For the most recent models (2025–2026), it is rated at approximately 420–430 horsepower and a class-leading 1,075 lb-ft of torque.