Cummins Launches Next-Generation 6.7L Turbo Diesel Pickup Engine System

Alongside its partners at Ram, Cummins Inc. recently unveiled the new 2025 6.7L turbo diesel pickup engine system for Ram Heavy Duty models.

With the unveiling of the advanced diesel pickup engine, Cummins and Stellantis have extended their partnership to supply Ram brand through 2030, the companies noted in a press release.

Cummins’ 6.7L turbo diesel advanced engine system and powertrain will be offered in the recently announced 2025 Ram 2500 and 3500 Heavy Duty pickups, and Ram 3500, 4500 and 5500 chassis cab trucks.

“We’ve improved the power, efficiency, serviceability and drivability of our latest 6.7L turbo diesel engine, making the 2025 Ram Heavy Duty lineup the most desirable yet,” said Jane Beaman, vice president – Global On-Highway and Pickup at Cummins.

Cummins’ latest offering delivers enhanced performance alongside High-Output ratings of 430 hp and 1,075 pound-feet of torque for pickups, and 360 hp and 800 pound-feet of torque for chassis cabs.

In close collaboration with Ram and its powertrain providers, the 2025 Cummins 6.7L turbo diesel engine is optimized with a brand-new 8-speed transmission, providing the right combinations of power, responsiveness and drivability, the release noted.

“Whether you are towing heavy loads for work or pulling your weekend camper, Cummins 6.7 turbo diesel is ready for any project. Our engineers have integrated critical, yet versatile, high-performance engine technologies that customers expect at lower emissions,” said Jennifer Rager, general manager – Pickup Business. “We’re thrilled to continue our partnership with Ram brand and introduce the best diesel pickup engine in the industry.”

The latest power offering for pickups and chassis cabs from Cummins includes advanced emissions air handling that also introduces a new airflow management design. This accompanies a new high-pressure fuel delivery system that offers top feed dry service injectors and a new fuel pump.

Cummins’ newest variable-geometry turbocharger for the new 6.7L delivers intelligent condition-based power output that is now faster and more efficient, according to officials.

Cummins has also introduced new features that make it easier to service the engine system and get back on the road. Software updates can now be executed from the comfort and convenience of inside the truck.

In addition, the oil filter and dual fuel filter are now thoughtfully positioned to enable serviceability from the top side of the engine, improving the ease of maintenance.

Additionally, the Cummins 6.7 turbo diesel pickup and chassis cab engine systems offer significantly improved cold-start management with the integration of advanced glow plug technology. By reducing the wait to start time, this enhancement ensures reliable vehicle operation even in the harshest and most extreme weather conditions.