2025 Ram Heavy Duty: New Cummins Engine Delivers Better Towing, MPG
What else is new on the 2025 Ram 2500 and 3500 Heavy Duty models?
January 9, 2025
The 2025 Ram 2500 gains about 1,000 lbs. in maximum towing capacity over the previous model with the new Cummins engine. (Laramie trim shown.)
Ram
3 min to read
After the light-duty Ram 1500 was updated in 2024, the Ram Heavy Duty lineup gets its turn with added towing capabilities, quicker 0-to-60 times, and more tech for 2025.
The 2025 Ram 2500 and 3500 Heavy Duty models feature two engines — the standard 6.4-liter HEMI V-8 engine and a new 6.7-liter Cummins Turbo Diesel engine that produces 430 hp and 1,075 lb.-ft. of torque.
The new 8-Speed TorqueFlite HD Transmission replaces the 6-speed automatic transmission from 2024 models.
2025 Ram Heavy Duty: More Efficient Towing
With the new Cummins engine, the latest 2500 gains about 1,000 lbs. in maximum towing capacity over the previous model. Max towing for the 3500 stays about the same but has moved from the 4.10 axle ratio to a more efficient 3.42 axle ratio for better fuel efficiency without sacrificing performance.
The 2025 Ram 2500 shaves a full 1.1 seconds off its 0 to 60 time (6.9 seconds vs 8.0 seconds).
The new 6.7-liter Cummins Turbo Diesel engine upgrades to 430 hp and 1,075 lb.-ft. of torque.
Ram
2025 Ram Heavy Duty: Exterior, Interior Upgrades
On the outside, the 2025 Ram Heavy Duty hasn’t strayed too far from its roots, but a new grille and split-LED headlamps give it a more modern look.
Inside, the new Uconnect 5 infotainment system goes big with a new 14.5-inch driver’s screen, 10.25-inch passenger screen, and 12.3-inch digital instrument cluster.
The passenger screen offers an HDMI plug to connect a device that turns the touchscreen into a projected extension of the device that allows internet searches, music and app use through the Uconnect 5 system.
The layout is completed with a digital rearview mirror and a dual wireless phone charging pad. The dial shifter moves to the column to free up dash space.
The new Ram Heavy Duty models feature bigger screens and a shifter that has moved from a dial to the stalk.
Ram
2025 Ram Heavy Duty: What Else is New?
Other new features for 2025 include:
An on-board power inverter that can produce up to 2.4 kilowatts and features two covered 110-volt outlets inside the bed.
Adaptive Cruise Control, Forward Collision Warning-Plus, ParkSense Assist arenow standard on the Big Horn trim and higher, where they were previously only available as options on all trim levels.
Drowsy driver detection, traffic sign recognition, and active lane management are new safety features for 2025.
The 360-Degree Surround-View Camera with Trailer Reverse Guidance provides a single display view of both sides of a trailer. While a 360-degree surround-view camera was available as an option on higher trims in 2024, the trailer reverse guidance was not included.
The Auxiliary Exterior Camera now comes with custom positioning, allowing users to mount and adjust the camera in and behind trailers for enhanced visibility.
2025 Ram Heavy Duty: Lineup & Pricing
For 2025, the Ram Heavy Duty lineup stays the same with these models: Tradesman, Big Horn/Lone Star, Laramie, Rebel, Power Wagon, Limited Longhorn, and Limited.
Pricing for the 2025 Ram Heavy Duty starts at $47,560, including destination, for the 2500 model. The new base price is only $315 more than the 2024 Ram 2500 Tradesman, the lowest trim on the outgoing line.
The Ram 3500 Heavy Duty starts at $48,565, including destination, which is only $315 more than the 2024 model.
The new Ram Heavy Duty lineup arrives at dealerships in the first quarter of 2025.
More Vehicle Research
EV Realty Names Henrik Holland President as Charging Platform Expands
The former Prologis Mobility and Shell executive will help expand EV Realty’s truck charging business and move its power-first infrastructure model into autonomous vehicle depots and other fleet sectors.
Read More →
Mercedes-Benz Introduces Electric GLC With Up to 350 Miles of Range
The GLC 400 4MATIC Electric features an 800-volt architecture, 330-kW DC fast charging and a 94-kWh battery, along with Mercedes-Benz's new MB.OS operating system.
Read More →
Fleet Has a Talent Pipeline Problem, not a Talent Problem
Where will the next generation of fleet leaders come from, and what does the industry need to do differently to find them?
Read More →
Fleet Hacks: What Are You Still Doing Manually?
From daily recaps to repeatable workflows, fleet professionals share how AI can cut through busywork while keeping human judgment at the center.
Read More →
How One Fleet Manager Put a New Spin on Safety Training
Joe Lewis turned a pre-trip inspection lesson into an AI-assisted song, then four safety albums. The experiment also revealed why human oversight matters when AI enters driver training.
Read More →
2027 Ram ProMaster City Starts Under $40K
Ram is returning to the smaller commercial van market with a new ProMaster City aimed at delivery, service, trade, and passenger applications. Starting at $39,995 with destination, the 2027 van offers up to 2,000 pounds of towing capacity, more than 2,000 pounds of payload, and multiple cargo and passenger configurations.
Read More →
New Tariff Threats & a Leadership Change at Wheels | AF News Recap
A new tariff threat is creating more uncertainty for fleet ordering, Wheels has named a new president, and we’re asking whether certification is really worth the investment.
Read More →
Certification: What’s in It for the Fleet Manager?
From smarter fleet decisions to stronger career credibility, certification can give fleet managers knowledge they may never gain inside a single operation.
Read More →
Wheels Names Matthew Cole President
Cole brings more than 30 years of automotive and technology experience to the fleet management company, including leadership roles at Aptiv, Visteon and Johnson Controls.
Read More →
AI is changing what fleet managers can build & 849,000 vehicles recalled | AF News Recap
Fleet managers are learning how to build their own AI-powered tools, Stellantis is recalling nearly 849,000 vehicles, and this year’s Fleet Manager of the Year finalists have been revealed. Additionally, we’re examining how to identify repairs that warrant a second look. Here’s what you need to know this week.
Read More →