Ram is unveiling its new 2025 Heavy Duty pickup lineup which arrives later in the first quarter. The biggest news is a new, more powerful turbo diesel engine option. The lineup also receives design tweaks, upgraded tech and more standard safety features.
Ram 2500 and 3500 Heavy Duty Powertrains
A new, more powerful Cummins 6.7-liter inline-6 High-Output Turbo Diesel engine available in all heavy-duty variants. It delivers 430-horsepower and a best-in-class standard 1.075 pound-feet of torque. Ram says the new engine results in quicker 0 to 60 mph times (6.9 seconds vs 8.0 seconds on 2024 MY).
“More than 70% of Ram heavy-duty customers opt for the diesel, and for 2025 we built on that demand and long-lasting durability with an improved Cummins engine coupled with a new eight-speed transmission,” said Tim Kuniskis. “This is a very specific pickup segment that requires a powerful tool — every 2025 Ram 2500 we sell allows the potential of 1075 lb.-ft. of torque in every gear, for a 70% increase in torque delivery from the previous generation 2500.”
The standard engine is a 6.4-liter HEMI V-8 with 405 horsepower and 429 lb.-ft. of torque.
A new electronic column shifter and TorqueFlite HD eight-speed automatic transmission are standard equipment on both engines. Ram says its new Heavy Duty engine control system also recognizes if the truck is loaded or unloaded and the new TorqueFlite transmission allows for smooth second-gear starts when unladen.
Towing Capability
The upgrades allow 36,610 pounds of towing capability for the 2500 Heavy Duty diesel, with a more fuel-efficient 3.42 rear axle ratio. (Max towing was previously available only with a 4.10 axle ratio.) There is a maximum payload of 7,590 pounds for the non-diesel V8.
Ram 3500 Heavy Duty maximum gooseneck and conventional hitch maximum trailer weight ratings for 2025 are 36,610 pounds and 23,000 pounds, respectively.
New Standard Safety Features
New standard safety features include Adaptive Cruise Control, Forward Collision Warning-Plus. ParkSense front/rear park assist (Big Horn and up); new Drowsy Driver Detection, Traffic Sign Recognition and Active Lane Management
A 360-degree surround-view camera with trailer reverse guidance view provides a single display screen view of both sides of a trailer to assist drivers in maneuvering towing setups
Ram also says the auxiliary exterior camera improves visibility with custom positioning in and behind trailers
Design Updates
For 2025, Ram Heavy Duty pickups feature updated grilles with a unique design reflecting the selected trim level. New premium LED headlamps, including twin bi-functional projectors, are available, while LEDs are now standard. Other exterior design updates include new wheels. New incandescent taillamps are standard while a premium version with LEDs with Blind-spot Monitoring is available on select models.
Technology and On-Board Power
- Advanced Uconnect 5 system with new 14.5-inch screen
- A segment-first 10.25-inch passenger screen
- A 12.3-inch digital instrument cluster, digital rearview mirror, and dual wireless phone charging pad
- Available class-exclusive dual wireless phone charging
- An on-board power inverter can produce up to 2.4 kilowatts and features two covered 110-volt outlets located inside the bed
2025 Ram 2500 Heavy Duty Rebel. Credit: Stellantis.
Availability and Pricing
The 2025 Ram 2500 and 3500 heavy-duty pickups go on sale this quarter:
- Ram 2500 Heavy Duty – starting at $47,560, including destination.
- Ram 3500 Heavy Duty – starting at $48,565, including destination.
For more specs on these new Ram Heavy-Duty trucks, click here.
Photo: Ram/Stellantis.