2025 Ram HD Arrives with a Reworked Cummins Diesel 2025 Ram HD ... Intake and exhaust valves are bigger by 2 millimeters, and fuel pressure is increased by 3000 psi to 32,000 psi total.

Get ready to RUMBLE! The 2025 Ram 2500 HD and 3500 HD have a new Cummins turbo-diesel engine. It packs a serious torquey punch as it makes off-roading and towing easier than ever. Check out the ...