The RAM 2500/3500 Crew Cab Long II (DT facelift, introduced in 2025) represents the latest iteration of Ram’s heavy-duty pickup truck line. This specific variant, the 3500 model equipped with the 6.7-liter Cummins High Output (HO) diesel engine producing 430 horsepower and paired with a TorqueFlite 8-speed automatic transmission and a 4×4 drivetrain, is positioned as a premium work and towing machine. Introduced as part of the DT generation’s mid-cycle refresh, the 2025 model year brings updated styling, enhanced technology, and refinements to the already capable chassis. It caters to buyers needing substantial towing capacity and payload, while also desiring a comfortable and well-equipped cabin.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Crew Cab Long II (DT, facelift 2025) |
| Type (Engine) | 3500 6.7 Cummins HO (430 Hp) 4×4 TorqueFlite SRW |
| Start of production | 2025 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5-6 |
| Doors | 4 |
| Fuel Type | Diesel |
| Weight-to-power ratio | 8.4 kg/Hp, 118.6 Hp/tonne |
| Weight-to-torque ratio | 2.5 kg/Nm, 402.2 Nm/tonne |
| Power | 430 Hp @ 2800 rpm |
| Power per litre | 64.3 Hp/l |
| Torque | 1458 Nm @ 1800 rpm (1075.37 lb.-ft. @ 1800 rpm) |
| Maximum engine speed | 3200 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | Cummins |
| Engine displacement | 6690 cm3 (408.25 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 107 mm (4.21 in.) |
| Piston Stroke | 124 mm (4.88 in.) |
| Compression ratio | 16.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | OHV |
| Engine oil capacity | 11.3 l (11.94 US qt | 9.94 UK qt) |
| Coolant | 22.5 l (23.78 US qt | 19.8 UK qt) |
| Kerb Weight | 3625 kg (7991.76 lbs.) |
| Max. weight | 5579 kg (12299.59 lbs.) |
| Max load | 1954 kg (4307.83 lbs.) |
| Trunk (boot) space – minimum | 2100 l (74.16 cu. ft.) |
| Fuel tank capacity | 121 l (31.96 US gal | 26.62 UK gal) |
| Permitted trailer load with brakes (12%) | 11421 kg (25178.99 lbs.) |
| Length | 6626 mm (260.87 in.) |
| Width | 2120 mm (83.46 in.) |
| Height | 1990 mm (78.35 in.) |
| Wheelbase | 4300 mm (169.29 in.) |
| Front track | 1719 mm (67.68 in.) |
| Rear (Back) track | 1703 mm (67.05 in.) |
| Ride height (ground clearance) | 186 mm (7.32 in.) |
| Minimum turning circle (turning diameter) | 16.4 m (53.81 ft.) |
| Approach angle | 23.3° |
| Departure angle | 23.5° |
| Ramp-over (brakeover) angle | 22.4° |
| Drivetrain Architecture | All wheel drive (4×4). ICE drives rear wheels, front wheels engaged via clutch. |
| Number of gears and type of gearbox | 8 gears, automatic transmission TorqueFlite |
| Front suspension | Coil spring, Rigid axle, Transverse stabilizer |
| Rear suspension | Rigid axle, Leaf spring, Air Suspension (Optional) |
| Front brakes | Ventilated discs, 359.9×39.1 mm |
| Rear brakes | Ventilated discs, 357.9×34 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic |
| Tires size | 275/70 R18; 285/60 R20 |
| Wheel rims size | 8J x 18; 8J x 20 |
INTRODUCTION
The 2025 Ram 3500 with the 6.7L Cummins HO and TorqueFlite transmission is a heavy-duty pickup designed for demanding tasks. It builds upon the DT generation Ram HD trucks, first introduced in 2019, with the 2025 facelift bringing cosmetic and technological updates. This configuration specifically targets customers who require maximum towing and hauling capabilities without sacrificing a degree of daily drivability. The Crew Cab Long configuration provides ample passenger space and a longer bed for versatility. Within the Ram 3500 lineup, this powertrain represents a step up from the standard 6.4L gasoline engine, offering significantly more torque for heavy-duty applications.
Powertrain & Engine Architecture
At the heart of this variant lies the Cummins 6.7-liter inline-six diesel engine. This engine, designated as the HO (High Output) version, produces 430 horsepower at 2800 rpm and a massive 1458 Nm (1075 lb-ft) of torque at 1800 rpm. The engine utilizes a common-rail direct fuel injection system, delivering precise fuel metering for optimal combustion and efficiency. The valvetrain employs an overhead valve (OHV) configuration, known for its durability and simplicity. A turbocharger with an intercooler further enhances power output by forcing more air into the cylinders. The engine’s robust construction and 16.2:1 compression ratio contribute to its longevity and ability to withstand high cylinder pressures. The TorqueFlite 8-speed automatic transmission is specifically calibrated to handle the engine’s substantial torque output. It features electronically controlled shifts for smooth and efficient operation.
Driving Characteristics
The 6.7L Cummins HO and TorqueFlite combination delivers a driving experience focused on capability rather than outright speed. While 430 horsepower is respectable, the engine’s strength lies in its immense torque. This translates to effortless towing, even with substantial loads. Acceleration is brisk, but the emphasis is on pulling power. The 8-speed automatic transmission helps keep the engine in its optimal power band, providing responsive shifts. Compared to the 6.4L gasoline engine, the diesel offers significantly more low-end torque, making it ideal for hauling heavy trailers or navigating challenging terrain. Compared to lower-output Cummins variants, the HO version provides a noticeable increase in power and responsiveness, particularly when fully loaded. The gear ratios are optimized for towing, with lower gears providing ample pulling power and higher gears for efficient highway cruising.
Equipment & Trim Levels
The 2025 Ram 3500 Crew Cab Long II with the Cummins HO engine is typically available in higher trim levels, such as Laramie, Longhorn, and Limited. Standard features generally include a premium interior with leather upholstery, heated and ventilated front seats, a large touchscreen infotainment system with navigation, and advanced safety features like adaptive cruise control and lane departure warning. Optional extras can include a premium sound system, a rear-seat entertainment system, and various off-road packages. The Crew Cab configuration provides spacious seating for up to six passengers, while the Long bed offers ample cargo space.
Chassis & Braking
The Ram 3500 chassis is built for heavy-duty use, featuring a robust frame and heavy-duty suspension components. The front suspension utilizes coil springs and a rigid axle with a transverse stabilizer bar. The rear suspension employs leaf springs, with an optional air suspension system available for improved ride comfort and load leveling. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power even when towing heavy loads. The ABS (Anti-lock Braking System) enhances safety by preventing wheel lockup during hard braking. The steering system utilizes a hydraulic power steering setup, providing a responsive and precise steering feel.
Market Reception & Comparison
The Ram 3500 with the 6.7L Cummins HO engine consistently receives positive reviews for its towing capacity, durability, and comfortable ride. Critics praise the engine’s abundant torque and the transmission’s smooth operation. Compared to competitors like the Ford Super Duty and Chevrolet Silverado HD, the Ram 3500 is often lauded for its refined interior and user-friendly technology. Fuel economy, while not a primary concern for heavy-duty truck buyers, is generally competitive with other diesel-powered trucks in its class. Reliability is generally good, although diesel engines can be more expensive to maintain than gasoline engines due to the complexity of the fuel injection system and emissions controls.
Legacy
The Cummins 6.7-liter engine has a long-standing reputation for reliability and longevity. Properly maintained, these engines can easily exceed 200,000 miles. The TorqueFlite transmission is also known for its durability. On the used market, Ram 3500s equipped with this powertrain hold their value well, due to their proven capability and reputation for reliability. The 2025 facelifted model is expected to continue this legacy, offering a compelling combination of power, comfort, and technology for buyers needing a heavy-duty pickup truck.
