The RAM 2500/3500 Crew Cab Long II (DT facelift, introduced for the 2025 model year) represents the latest iteration of Ram’s heavy-duty pickup truck lineup. This particular variant, the 3500 model equipped with the 6.4-liter HEMI V8 engine producing 405 horsepower and paired with a TorqueFlite 8-speed automatic transmission, and a 4×4 drivetrain, occupies a significant position within the range. It’s designed to bridge the gap between the base engine options and the more powerful, diesel-powered models, offering a balance of capability, comfort, and cost. The “DT” designation refers to the fourth generation of the Ram Heavy Duty series, which began in 2019, with the 2025 model representing a substantial mid-cycle refresh.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Crew Cab Long II (DT, facelift 2025) |
| Type (Engine) | 3500 6.4 HEMI V8 (405 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 | Petrol (Gasoline) |
| Weight-to-power ratio | 7.8 kg/Hp, 127.5 Hp/tonne |
| Weight-to-torque ratio | 5.5 kg/Nm, 183.2 Nm/tonne |
| Power | 405 Hp @ 5600 rpm |
| Power per litre | 63.1 Hp/l |
| Torque | 582 Nm @ 4000 rpm (429.26 lb.-ft. @ 4000 rpm) |
| Maximum engine speed | 5800 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | HEMI |
| Engine displacement | 6417 cm3 (391.59 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103.9 mm (4.09 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV, VCT |
| Engine oil capacity | 6.6 l (6.97 US qt | 5.81 UK qt) |
| Coolant | 15.75 l (16.64 US qt | 13.86 UK qt) |
| Kerb Weight | 3177 kg (7004.09 lbs.) |
| Max. weight | 5189 kg (11439.79 lbs.) |
| Max load | 2012 kg (4435.7 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%) | 7620 kg (16799.22 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 | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| 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; 285/60 R20 |
| Wheel rims size | 8J x 18; 8J x 20 |
INTRODUCTION
The 2025 Ram 3500 with the 6.4-liter HEMI V8 and TorqueFlite transmission is a heavy-duty pickup truck designed for demanding tasks such as towing and hauling. Positioned within the Ram 2500/3500 lineup, it offers a step up in capability from the base 5.7L HEMI V8 while remaining more accessible than the powerful 6.7L Cummins turbodiesel engine options. The Crew Cab Long configuration provides ample passenger space and a longer bed for increased cargo capacity. This facelifted version of the DT generation incorporates updated styling, enhanced technology, and refined interior appointments.
Powertrain & Engine Architecture
At the heart of this variant lies the 6.4-liter (391.59 cubic inches) HEMI V8 engine, internally designated as part of the Chrysler Generation III HEMI family. This engine features a cast iron block with aluminum cylinder heads, and utilizes a pushrod valvetrain (OHV) with variable valve timing (VCT) to optimize performance and efficiency. The engine employs multi-port fuel injection, delivering fuel directly to each cylinder. The 6.4L HEMI produces 405 horsepower at 5600 rpm and 429 lb-ft of torque at 4000 rpm. The TorqueFlite 8-speed automatic transmission is specifically tuned to handle the engine’s output and the demands of heavy-duty applications. This transmission features electronically controlled shifts and a robust design for durability. Cylinder deactivation (MDS) is included, allowing the engine to operate on fewer cylinders during light-load conditions to improve fuel economy.
Driving Characteristics
The 6.4-liter HEMI V8 provides ample power for everyday driving and demanding tasks. While not as fuel-efficient as the smaller 5.7L HEMI, it delivers significantly more torque, making it well-suited for towing heavy trailers or hauling substantial payloads. The 8-speed TorqueFlite transmission offers smooth and responsive shifts, and the gear ratios are optimized for both acceleration and highway cruising. Compared to the 5.7L HEMI, this variant feels noticeably more confident when loaded or towing. Compared to the diesel options, the 6.4L HEMI offers a more traditional gasoline engine feel, with quicker throttle response and a higher revving nature. However, it lacks the diesel’s exceptional low-end torque and fuel economy.
Equipment & Trim Levels
The 2025 Ram 3500 6.4 HEMI typically comes standard with a well-equipped interior, including cloth upholstery, air conditioning, a user-friendly infotainment system with a touchscreen display, and a suite of safety features. Higher trim levels, such as Laramie, Longhorn, and Limited, add premium features like leather upholstery, heated and ventilated seats, a larger touchscreen, a premium sound system, and advanced driver-assistance technologies. Optional extras include a sunroof, a rear-seat entertainment system, and various appearance packages.
Chassis & Braking
The Ram 3500 features a heavy-duty chassis designed to withstand the stresses of demanding applications. The front suspension utilizes a coil spring and rigid axle setup with a transverse stabilizer bar, while the rear suspension employs a leaf spring design. Air suspension is available as an option, providing adjustable ride height and improved comfort. Braking duties are handled by ventilated disc brakes at all four corners, providing ample stopping power. An Anti-lock Braking System (ABS) is standard. The steering system utilizes a hydraulic power steering setup for precise control.
Market Reception & Comparison
The Ram 3500 6.4 HEMI has generally received positive reviews for its blend of power, capability, and comfort. Critics have praised the engine’s strong performance and the transmission’s smooth operation. Compared to the 5.7L HEMI, the 6.4L offers a significant increase in towing and hauling capacity. Compared to the Cummins diesel options, it provides a more affordable entry point into the heavy-duty truck segment, albeit with a trade-off in fuel economy and low-end torque. Fuel economy is rated at approximately 14 mpg city and 19 mpg highway, depending on driving conditions and configuration.
Legacy
The 6.4-liter HEMI V8 has proven to be a reliable and durable engine in the Ram Heavy Duty lineup. While not as widely celebrated as the Cummins diesel, it has earned a reputation for its robust construction and relatively straightforward maintenance. On the used car market, Ram 3500 models equipped with this powertrain hold their value reasonably well, particularly those that have been well-maintained and have a documented service history. The combination of gasoline power, a capable transmission, and a comfortable interior makes this variant a popular choice for owners who require a heavy-duty truck without the complexity or cost of a diesel engine.
