The RAM 2500/3500 Regular Cab II (DT facelift, introduced in 2025) represents the latest iteration of Ram’s heavy-duty pickup truck line. Specifically, 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 truck and towing solution. This configuration builds upon the established DT platform, first introduced in 2019, with updates focused on interior refinement, technology integration, and enhanced capability. The 2025 facelift brings styling revisions and further improvements to the already robust chassis and powertrain.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Regular Cab 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 | 2-3 |
| Doors | 2 |
| Fuel Type | Diesel |
| Weight-to-power ratio | 7.9 kg/Hp, 126.8 Hp/tonne |
| Weight-to-torque ratio | 2.3 kg/Nm, 429.8 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 | 3392 kg (7478.08 lbs.) |
| Max. weight | 5366 kg (11830 lbs.) |
| Max load | 1974 kg (4351.93 lbs.) |
| Trunk (boot) space – minimum | 2100 l (74.16 cu. ft.) |
| Fuel tank capacity | 106 l (28 US gal | 23.32 UK gal) |
| AdBlue tank | 28.4 l (7.5 US gal | 6.25 UK gal) |
| Permitted trailer load with brakes (12%) | 11830 kg (26080.69 lbs.) |
| Length | 5892 mm (231.97 in.) |
| Width | 2120 mm (83.46 in.) |
| Height | 2019 mm (79.49 in.) |
| Wheelbase | 3560 mm (140.16 in.) |
| Front track | 1719 mm (67.68 in.) |
| Rear (Back) track | 1703 mm (67.05 in.) |
| Ride height (ground clearance) | 217 mm (8.54 in.) |
| Minimum turning circle (turning diameter) | 13.9 m (45.6 ft.) |
| Approach angle | 23.2° |
| Departure angle | 25.2° |
| Ramp-over (brakeover) angle | 25.2° |
| 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 suspension, Transverse stabilizer |
| Rear suspension | Rigid axle suspension, 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 Steering |
| Tires size | 275/70 R18 |
| Wheel rims size | 8J x 18 |
Powertrain & Engine Architecture
The heart of this RAM 3500 variant is the Cummins 6.7-liter inline-six diesel engine. This engine, designated as the HO (High Output) version, delivers 430 horsepower and a substantial 1458 Nm (1075 lb-ft) of torque. The engine utilizes a cast iron block and head, known for their durability, and features a turbocharger with an intercooler to enhance power and efficiency. The fuel system employs a high-pressure common rail diesel injection system, optimizing fuel delivery for cleaner combustion and improved performance. The engine’s valvetrain utilizes an overhead valve (OHV) configuration. The TorqueFlite 8-speed automatic transmission is specifically calibrated to handle the engine’s high torque output and provide smooth, efficient shifting. This transmission features electronically controlled shifts and a tow/haul mode for optimized performance when towing heavy loads.
Driving Characteristics
The 6.7L Cummins HO with the TorqueFlite automatic delivers a driving experience focused on capability and usability. While not as quick as gasoline-powered alternatives, the immense torque available from 1800 rpm provides effortless acceleration, even when heavily loaded or towing. The 8-speed automatic transmission helps keep the engine in its optimal power band, contributing to responsive performance. Compared to lower-output Cummins variants, the HO engine offers a noticeable increase in power, making it more suitable for demanding tasks. Compared to manual transmission equipped models, the automatic provides ease of use, particularly in stop-and-go traffic or challenging terrain. The 4×4 system provides excellent traction in various conditions.
Equipment & Trim Levels
The 3500 Regular Cab with the Cummins HO engine typically falls into the mid-to-upper trim levels within the Ram lineup. Standard features generally include air conditioning, power windows and locks, a basic infotainment system with a touchscreen display, and a rearview camera. Higher trims add features such as leather upholstery, heated and ventilated seats, a premium sound system, navigation, and advanced safety technologies like adaptive cruise control and lane departure warning. The Regular Cab configuration prioritizes functionality and work-oriented features, offering a spacious interior for two or three occupants. Options often include upgraded towing packages, off-road enhancements, and various appearance packages.
Chassis & Braking
The RAM 3500 chassis is built around a robust fully boxed frame, designed to withstand heavy loads and demanding use. The front suspension utilizes a coil spring and rigid axle setup with a transverse stabilizer bar, providing a comfortable ride and stable handling. The rear suspension employs a leaf spring configuration, optimized for load-carrying capacity. Air suspension is available as an option, offering adjustable ride height and improved comfort. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard. The steering system utilizes a hydraulic power steering setup, offering precise control and feedback.
Market Reception & Comparison
The RAM 3500 with the 6.7L Cummins HO engine has consistently received positive reviews for its towing capacity, durability, and overall capability. Critics praise the engine’s power and torque, as well as the smooth operation of the TorqueFlite transmission. Fuel economy, while not a primary focus for this type of vehicle, is generally considered competitive within the heavy-duty truck segment. Compared to other trims in the RAM 2500/3500 lineup, the Cummins HO variant represents a significant upgrade in performance and towing capacity, justifying its higher price point. It competes directly with similar offerings from Ford (Super Duty) and General Motors (Sierra/Silverado HD).
Legacy
The Cummins 6.7-liter engine has established a strong reputation for reliability and longevity. Properly maintained, these engines can easily exceed 300,000 miles. The TorqueFlite transmission is also known for its durability. On the used car market, RAM 3500 models equipped with this powertrain configuration hold their value well, due to their proven capability and reputation for dependability. These trucks remain popular choices for owners who require a heavy-duty workhorse for towing, hauling, and demanding applications.
