The new lineup of Ram HD trucks just got extra beefy thanks to an improved diesel engine. The Cummins 6.7-liter turbo diesel is about to change the heavy-duty game. 2025 Ram HD trucks have a new diesel engine The entire 2025 Ram HD truck lineup is available with a reworked Cummins diesel engine.

Following last year's update of the light duty Ram 1500, the heavy duty Ram trucks get a refresh for 2025 with a redesigned Cummins 6.7L diesel and more tech

Cummins unveiled a new 2025 6.7-liter Turbo Diesel Pickup engine system for Ram Heavy Duty, along with its partners at Ram, on Wednesday. As part of this, Cummins and Stellantis have extended their partnership to supply Ram Brand through 2030,

Ram's heavy-duty pickups will continue to offer V8 power in the US, but the real news is an overhauled turbo-diesel inline six.

After getting booted from the 2025 Ram 1500 lineup, the 6.4-liter Hemi V8 engine carries on for the 2025 2500 and 3500 lineups with 405 horsepower and 429 lb-ft of torque. This mi

Ram's heavy-duty trucks receive a comprehensive refresh that includes new exterior styling and interior upgrades.

Ram has finally revealed its 2025 HD and Chassis Cab lineups, incorporating many of the flashy upgrades that have already hit the standard Ram 1500 pickup. But there’s more to this overhaul than a fancier cabin and a new grille.