MSRP: $45,565
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Overview
The 2025 Ram HD (2500/3500) delivers true heavy-duty capability with a standard 6.4-liter HEMI gas V8 with 405 horsepower/429 lb-ft and an optional 6.7-liter turbo-diesel Cummins inline six-cylinder with 430 hp and 1,075 lb-ft of torque. An eight-speed automatic transmission and rear-wheel drive are standard, but four-wheel drive is available, and towing capacity maxes out at 36,610 pounds. Its main rivals are the Ford F-Series Super Duty, GMC Sierra HD, and Chevrolet Silverado HD.
What’s New for 2025
The exterior is updated to align the HD with the Ram 1500, so the truck features new grilles and split LED headlights, while the taillights are revised, too. There are design changes inside as well, the biggest being larger Uconnect infotainment screens with a five-times-faster electronic architecture; the eight-inch display grows to 8.4 inches (standard on the two base trims), while the 12-inch display is still available (optional on the two base trims; standard on the mid-range trims). They are joined by an even larger 14.5-inch display that’s standard on the two Limited trims and optional on the mid-range trims. A 10.25-inch passenger screen is also now optional.
A redesigned 6.7-liter Cummins diesel engine now has 430 hp (up from 400 hp), but torque remains 1,075 lb-ft. The low-output 370-hp/850-lb-ft Cummins is gone. The gas engine is downrated slightly from 410 to 405 hp, but still has 429 lb-ft. The diesels get a new eight-speed automatic transmission to replace the old six-speed unit (the 6.4L gas engine already had an eight-speed auto). Small reductions have been made to the maximum payload and tow ratings; the former drops by 90 lbs to 7,590 lbs, and the latter by 480 lbs to 36,610 lbs.
Some of the other changes include the addition of a bunch of newly standard driver assists, notably front-collision alert, automatic emergency braking, adaptive cruise control, traffic-sign recognition, and lane-keep assist.
Exterior
The bold exterior has a heavy-duty presence that can’t be ignored, and it looks smarter now thanks to the reworked front and rear lighting elements. Grille designs are trim-dependent, as before. There are also three cab sizes, namely the two-door Regular Cab and the four-door Crew Cab and Mega Cab versions, the latter offering the most spacious rear-seat seating in the segment. There are two bed lengths too – 6-foot-4 and 8-foot – while the Rebel and Power Wagon have distinctive off-road styling. Dual rear wheels (DRWs) and a Chassis Cab configuration are exclusively available for the 3500 derivatives.
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Interior
The spacious cabin is solidly built and features some genuinely premium materials on the top trims, like the leather-and-suede upholstery on the Laramie. The base touchscreen is a little bigger, but the 12- and 14.5-inch high-constrast displays really make an impression, and even the passenger can get a 10.25-inch display now. The new electronic architecture also makes the system five times faster and much more responsive. Dual wireless phone chargers are available. The Mega Cab offers seating for up to six and class-leading second-row space.
Ram
Price Range
The 2025 Ram HD’s price list starts at $45,565, but the $53K Big Horn Crew Cab represents the best value.
- Base trim: 2500 Tradesman Regular Cab 4×2 at $45,565
- Top trim: 3500 Limited Crew Cab 4×4 at $76,480
- Best value trim: 2500 Big Horn Crew Cab 4×2 at $53,085
Key Specs
Powertrain
| Engine | Output | Transmission |
| 6.4L Hemi V8 | 405 hp / 429 lb-ft | 8-speed automatic |
| 6.7L Cummins Turbo-Diesel I6 | 430 hp / 1,075 lb-ft | 8-speed automatic |
Drive type: Rear-wheel drive standard / Four-wheel drive available
0-60 mph: 6.3 seconds (2500 diesel), 8.0+ seconds depending on configuration
Towing & Payload
| Model | Max Towing | Max Payload |
| 2500 (diesel) | 20,000 lbs | 4,420 lbs (gasoline) |
| 3500 (diesel) | 36,610 lbs | 7,590 lbs (gasoline) |
The maximum tow rating of 36,610 pounds belongs to the Ram 3500 Regular Cab diesel 4×4 with the 8-foot bed, Max Towing package, gooseneck trailer preparation, and 3.42:1 rear axle ratio.
Fuel Economy
EPA does not estimate fuel economy for commercial vehicles of more than 8,500 pounds GVWR. As a guide, the stats of owners reporting their fuel consumption to Fuelly.com show that most owners of 6.7L diesel Ram 3500s get between 11 and 17 mpg on average, depending on usage type.
Warranty
Ram provides a competitive warranty with enhanced coverage for the diesel powertrain.
| Coverage Type | Duration |
| Basic | 3 years / 36,000 miles |
| Powertrain (gasoline) | 5 years / 60,000 miles |
| Powertrain (diesel) | 5 years / 100,000 miles |
No complimentary scheduled maintenance is included.
Pros
- Cummins diesel generates 1,075 pound-feet of torque
- The new eight-speed automatic transmission is smoother and more efficient
- Single high-output 400-hp diesel option available on both 2500 and 3500
- Maximum 36,610-pound towing capacity for the 3500
- Mega Cab provides the largest rear seat in its class
- Various driver-assistance features are now standard
- New 14.5-inch touchscreen available
- Electronic architecture is five times faster
- Diesel warranty is 5 years/100,000 miles
Cons
- Maximum towing capacity and payload are slightly lower this year
- No EPA fuel economy estimates available
- No complimentary scheduled maintenance
- Diesel engine costs $12,595 more than the gas V8
- Ford Super Duty diesel has up to 500 hp and 1,200 lb-ft
- Exterior updates subtle, with minimal visual changes
Verdict
The 2025 Ram HD heavy-duty truck gets a welcome refresh to better align with the Ram 1500, complete with reconfigured LED headlights and taillights, refreshed trim-specific grille finishes, and the same three cab and three bed sizes as before. Inside, the infotainment system has been overhauled with faster processing and larger displays, culminating in a 14.5-inch screen and even an available 10.25-inch passenger screen. All the most important driver assists are also now standard.
RAM
Competitors
- Ford F-Series Super Duty
- Chevrolet Silverado HD
- GMC Sierra HD
About the author
Cobus F. Potgieter
Reviews and Features Editor