Tow It All: The 2025 Ram Heavy Duty Goes Big
The 2025 Ram Heavy Duty (HD) lineup continues to push the boundaries of capability, refinement, and technology in the heavy-duty truck segment. With a new high-output Cummins diesel engine, a refined powertrain, and updated technology, the latest Ram HD models aim to solidify their place as one of the most compelling choices in the market. Here’s an in-depth look at the changes and specifications for the 2025 Ram 2500 and 3500 models.
Powertrain Updates: New Cummins Diesel and a Retained HEMI
One of the most significant updates to the 2025 Ram HD trucks is the introduction of a new Cummins 6.7-liter six-cylinder turbocharged diesel engine. This high-output powerhouse delivers 430 horsepower and a staggering 1,075 lb-ft of torque. Unlike previous model years, there is no middle-weight Cummins offering; instead, buyers must opt for this high-output version.
Paired with this new engine is a completely reworked eight-speed automatic transmission, which replaces the previous six-speed. The additional gears allow for smoother shifts, improved power delivery, and better towing performance. This updated powertrain ensures that even under heavy loads, the Ram HD provides seamless performance without excessive strain on the drivetrain.
For those who prefer gasoline power, the 6.4-liter HEMI V8 remains as the standard powerplant. This naturally aspirated engine produces 405 horsepower and 429 lb-ft of torque, channeled through an eight-speed automatic transmission. While it lacks the sheer torque of the Cummins diesel, it remains a strong choice for those prioritizing affordability and simplicity over maximum towing capacity.
Towing and Payload: Diesel Dominates
Towing remains a crucial factor for HD truck buyers, and the 2025 Ram HD does not disappoint. The HEMI-powered Ram 3500 4x4 with a regular cab and eight-foot bed has a maximum towing capacity of 17,760 pounds. However, for those who need serious hauling capabilities, the Cummins diesel-powered Ram 3500 can tow up to 36,610 pounds in its most optimal configuration.
On the lower end of the spectrum, the Cummins-powered 2500 Mega Cab Laramie offers a maximum towing capacity of 14,630 pounds, while the HEMI-powered Power Wagon is rated to tow 10,530 pounds.
The revised Cummins engine doesn’t just boost power and torque—it also provides a more refined towing experience. Drivers can expect smooth power delivery, minimal turbo lag, and confidence-inspiring highway performance, even under load. The eight-speed transmission plays a crucial role in this, allowing for optimized gear selection and reduced strain on the powertrain.
Driving Impressions: Power and Comfort in a Workhorse
For a vehicle built to handle heavy loads, the 2025 Ram HD offers a remarkably smooth and refined driving experience. The new eight-speed transmission delivers buttery-smooth shifts, eliminating the jarring feel often associated with heavy-duty trucks.
Steering is light and highly boosted, making maneuvering a 2500 or 3500 model feel more like piloting a classic land yacht rather than a massive workhorse. For those spending long hours behind the wheel, this effortless steering feel will be a welcome relief.
When unloaded, the Cummins-powered models exhibit surprising acceleration, with the massive torque propelling the truck forward with authority. The HEMI models offer a more traditional naturally aspirated driving experience, with linear power delivery and a satisfying V8 burble.
Interior and Technology: Luxury Meets Practicality
As expected from Ram, the 2025 HD lineup boasts one of the most refined interiors in the heavy-duty segment. Buyers can choose from a range of trims, starting with cloth-covered seats in base models and extending to the ultra-luxurious Laramie Longhorn and Limited trims, which feature premium leather, intricate stitching, and high-end materials.
Ram continues to offer multiple infotainment screen options, including an 8.4-inch standard display and an optional 12-inch Uconnect system that retains some physical buttons for essential controls, such as the exhaust brake. For tech enthusiasts, an even larger 14.5-inch screen is available, though it removes nearly all physical buttons, which may be a downside for some users.
A front passenger display is available on higher trims, allowing the co-pilot to access entertainment or navigation without distracting the driver. However, some early testers have noted minor hiccups with Uconnect, such as occasional menu glitches—though these can usually be resolved with a reboot.
Power Wagon: Off-Road Ready but Sticking to Gasoline
The Ram Power Wagon remains a unique offering in the heavy-duty truck segment. While it continues to forgo the Cummins diesel in favor of the 6.4-liter HEMI V8, it makes up for it with serious off-road capability.
Key features include:
- Front sway bar disconnect for improved articulation
- Bilstein dampers tuned for rugged terrain
- 17-inch alloy wheels wrapped in Goodyear Wrangler tires
- 12,000-pound winch for serious recovery situations
Despite its size, the Power Wagon performs impressively on the trail. While the ride may be a bit stiff on washboard surfaces, the truck excels in rock crawling, hill climbing, and general off-road prowess. It’s a workhorse that thrives in the backcountry.
Pricing and Availability
While the base Ram 2500 starts at $47,660, adding the Cummins diesel engine will increase the price by $12,595. Higher trims and options can easily push the price into the six-figure range, making Ram HD trucks among the most expensive in the segment—though buyers will find the refinement and features justify the cost.
Production for the 2025 Ram 2500 and 3500 models is already underway at Ram’s Saltillo, Mexico factory, with trucks available for purchase now.
A Stronger, Smarter Ram HD
The 2025 Ram HD lineup delivers serious improvements where it matters most: power, towing, and refinement. The new Cummins diesel is a game-changer, offering a perfect blend of brute force and efficiency, while the eight-speed transmission ensures smooth, controlled performance in all conditions.
With its luxurious interior, advanced technology, and competitive capabilities, the 2025 Ram HD is set to win over more buyers—including some brand-loyal truck enthusiasts who might be tempted to switch allegiances. Whether you need a heavy hauler, a comfortable daily driver, or an off-road-ready Power Wagon, the new Ram HD lineup delivers in every category.
