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While the light-duty Ram 1500 already received a comprehensive refresh for the 2025 model year, those wanting a certified workhorse were forced to wait until now for the revised heavy-duty lineup. With the curtain now lifted, the Ram 2500 and 3500 trucks have received a similar treatment to their half-ton counterparts, sporting notable powertrain changes, modernized styling, new interior furnishings, and some tech and safety upgrades.
The 2025 Ram HDs are still available with a gas or diesel powertrain. The gasser is motivated by the long-lived 6.4-liter Hemi V-8 that delivers 405 horsepower and 429 pound-feet of torque. Ram claims 70 percent of HD buyers are more interested in the oil-burning engine, though, and the venerable Cummins diesel 6.7-liter inline-six has received an overhaul. Previously, the Cummins was available in either standard- or high-output form, with the latter only available in 3500 models. For 2025, a refined high-output Cummins can be ordered in the full range of HD trucks. Its output jumps to 430 horsepower (30 more than the previous H.O. Cummins), but its gargantuan 1075 pound-feet of torque remains the same.
Despite the upgrades, the max towing capacity for the 2025 HD is now 36,610 pounds when fitted with the H.O. Cummins—480 pounds less than the outgoing truck could manage. The slight hit to maximum towing capacity is a trade-off for the 2025 HD’s new TorqueFlite HD eight-speed automatic transmission and 3.42 rear-axle ratio. While an eight-speed auto previously came standard with the Hemi, the Cummins only paired with an antiquated six-speed auto until now. While there aren’t any exact figures regarding fuel-economy improvements, Ram says that the new eight-speed and differential combo will result in higher efficiency and lower revs, especially at highway speeds.
We got our first view of the Ram HD’s revised styling in September of last year, and the new front-end design has courted some controversy. As with the outgoing HD, the new trucks are blunt in the front, but they all feature revised snouts. The stripped-down Tradesman and off-road-ready Rebel trims feature blacked-out grilles, while the more luxe trims such as the Longhorn and Laramie tout chrome brightwork. Sleek split-tier LED headlights come standard, and the taillights are offered in either a standard or premium configuration with C-shaped LED piping.
Inside, the HD gets many of the same upgrades as the revised light-duty Ram 1500. The interior tech suite has been overhauled, featuring a 12.3-inch digital cluster, a larger 14.5-inch infotainment screen, and a new 10.3-inch passenger display. The Tradesman, Big Horn, Laramie, and Limited trims also feature updated materials. Fresh interior color options are available on select trims.
New standard safety features include adaptive cruise control and forward-collision alert. Front and rear parking sensors are found on Big Horn and higher trims, drowsy-driver detection, traffic-sign recognition, and lane-keeping assist are all available options. To aid in trailering, the new HD comes with a 360-degree camera and automatic blind-spot cameras that activate when the turn signals are engaged.
The 2025 HD lineup remains the same as it was in 2024. It includes Tradesman, Lone Star, Big Horn, Laramie, Power Wagon, Limited Longhorn, Limited, and Rebel trims. Along with multiple cab styles and bed lengths, both rear- and four-wheel drive are available. Pricing for the new Ram HD starts at $47,560 for the 2500 and $48,565 for the 3500. The lineup is expected to arrive in dealerships within the next few months.
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