Automotive Fleet
MenuMENU
SearchSEARCH

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?

Photo of 2025 Ram 2500 Laramie.

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. 

Ad Loading...

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).

Photo of 2025 Cummins diesel engine

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. 

Ad Loading...

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. 

Photo of 2025 Ram 2500 Laramie interior.

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.

Ad Loading...

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

Graphic featuring EMKAY headquarters and 80th anniversary display with text reading “From Then to Now: 80 Years of EMKAY.”
Vehicle Researchby Faith HowellMay 26, 2026

Emkay Through the Years: 80 Years of Innovation & Partnership

From vintage office photos and early dealership roots to modern fleet technology and an 80th anniversary celebration, this gallery traces Emkay's journey across generations.

Read More →
Interior dashboard view of a Volvo EV featuring Google Maps navigation and infotainment display during a demo of upcoming Gemini AI vehicle integration.

Volvo, Google Preview AI-Powered In-Car Navigation Features

Gemini integration and new Google Maps immersive navigation tools are slated for upcoming Volvo EV models, including the EX60.

Read More →
An obit image of fleet hall of famer Ray Breault next to a black square with the text of his birth and death dates.
Vehicle Researchby Faith HowellMay 20, 2026

Automotive Fleet Hall of Fame Inductee Ray Breault Passes at 95

Ray Breault, a former NAFA president and longtime fleet leader whose career spanned nearly 60 years, died May 1 at age 95. Breault was inducted into the Automotive Fleet Hall of Fame in 2008 and was widely recognized for his contributions to the fleet management profession.

Read More →
Ad Loading...
Close-up of the 2027 Volkswagen ID. Buzz side window with quilted privacy shades and integrated side mirror camera parked outdoors.

The 2027 Volkswagen Lineup

Volkswagen recently released details on the 2027 lineup, which includes a variety of new features for the vehicles.

Read More →
Gray 2026 Kia EV6 electric crossover driving on a desert highway at sunset with mountains and Joshua trees in the background.

2026 Kia EV6 Arrives With Lower Pricing, New Charging Features

Kia lowered pricing for the 2026 EV6 lineup while adding standard charging equipment, Plug & Charge capability, and updated color options.

Read More →
Blue BMW iX3 electric SUV parked on a reflective surface with mountain scenery in the background at dusk.

2027 BMW iX3 Starts at $61,500 With Up to 434 Miles of Range

BMW priced the 2027 iX3 50 xDrive at $61,500 and said the new EV SUV will offer up to 434 miles of range, 800V fast charging, and a new-generation operating system when deliveries begin in September.

Read More →
Ad Loading...
YouTube thumbnail with a dark blue, high-contrast corporate design featuring a smiling young woman on the left pointing upward. Large bold text on the right reads: ‘HOW FLEETS ARE DOING MORE WITH LESS IN 2026.’ Smaller header text at the top says ‘WEEKLY CHEAT SHEET.’ Along the bottom are three blue-and-white icons labeled ‘TRENDS,’ ‘INSIGHTS,’ and ‘STRATEGIES.’
Vehicle Researchby Faith HowellMay 18, 2026

How Fleets Are Doing More with Less in 2026 | AF News Recap

In this news recap, host Faith Howell covers the ethics of AI, replacement delays, and how one company is streamlining uptime.

Read More →
SponsoredMay 15, 2026

Hybrids: Electrification Without the Challenges

For fleet managers, fuel is one of the biggest line items in the budget — and it's one hybrids can shrink without changing how your people work. Download the eBook to see the numbers, understand the technology, and get a step-by-step guide to making the switch.

Read More →
A graphic including Emkay's building celebrating 80 years in fleet.
Vehicle Researchby StaffMay 13, 2026

Inside Emkay's 80th Anniversary Celebration [Watch]

EMKAY recently celebrated a major milestone: 80 years in the fleet industry.

Read More →
Ad Loading...
Cover of a whitepaper titled “The Hidden Costs of Departmentally Assigned Vehicles on Your Fleet” featuring a black fleet vehicle driving on a road at sunset. Subheadline reads: “Discover how your fleet can reduce costs and minimize risk by implementing vehicle sharing.” The document focuses on fleet optimization, vehicle sharing, cost reduction, utilization tracking, and risk management for fleet operations.
SponsoredMay 13, 2026

Why Fleet Managers Are Replacing Departmental Vehicles with Shared Motor Pools

Departmentally assigned vehicles often create hidden costs through underutilization, poor visibility, and increased administrative burden. This white paper explores how shared motor pool strategies help fleets reduce costs, improve accountability, and optimize vehicle utilization.

Read More →