The RAM 2500/3500 Crew Cab II (DT) with the 6.4 Hemi V8 engine and automatic transmission represents a significant offering in the heavy-duty pickup truck segment. Produced from 2019 through 2025, this configuration aimed to balance substantial capability with a degree of refinement suitable for both work and family use. Positioned as a mid-to-upper tier option within the RAM heavy-duty lineup, it slotted above the base engine choices but below the more powerful Cummins diesel variants. This truck is a cornerstone of the DT generation, known for its improved interior, technology, and overall driving experience compared to previous generations.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Crew Cab II (DT) |
| Type (Engine) | 2500 6.4 Hemi V8 (410 Hp) Automatic |
| Start of production | 2019 |
| End 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 kg/Hp, 142.5 Hp/tonne |
| Weight-to-torque ratio | 4.9 kg/Nm, 202.2 Nm/tonne |
| Power | 410 Hp @ 5600 rpm |
| Power per litre | 63.9 Hp/l |
| Torque | 582 Nm @ 4000 rpm, 429.26 lb.-ft. @ 4000 rpm |
| Maximum engine speed | 5800 rpm |
| Engine layout | Front, Longitudinal |
| 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 |
| Engine oil capacity | 6.6 l, 6.97 US qt | 5.81 UK qt |
| Coolant | 15.7 l, 16.59 US qt | 13.81 UK qt |
| Kerb Weight | 2878 kg, 6344.9 lbs |
| Max. weight | 4536 kg, 10000.17 lbs |
| Max load | 1658 kg, 3655.26 lbs |
| Trunk (boot) space – maximum | 1628 l, 57.49 cu. ft. |
| Permitted trailer load with brakes (12%) | 6659 kg, 14680.58 lbs |
| Length | 6066 mm, 238.82 in |
| Width including mirrors | 2120 mm, 83.46 in |
| Height | 1987 mm, 78.23 in |
| Wheelbase | 3785 mm, 149.02 in |
| Front track | 1745 mm, 68.7 in |
| Rear (Back) track | 1729 mm, 68.07 in |
| Ride height (ground clearance) | 281 mm, 11.06 in |
| Minimum turning circle (turning diameter) | 14.6 m, 47.9 ft |
| Approach angle | 18.8° |
| Departure angle | 23.6° |
| Ramp-over (brakeover) angle | 20.3° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 8 gears, automatic transmission |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Disc |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 275/70 R18 E; 285/60 R20E |
| Wheel rims size | 8.0J x 18; 8J x 20 |
Powertrain & Engine Architecture
At the heart of this RAM 2500/3500 variant lies the 6.4-liter (392 cubic inch) HEMI V8 engine, internally designated as the 6.4L Hemi. This engine is a member of Chrysler’s Generation III HEMI family, known for its robust construction and relatively simple design. It features a cast iron block with aluminum cylinder heads, utilizing an overhead valve (OHV) valvetrain with two valves per cylinder. Fuel delivery is managed by a multi-port fuel injection system, providing precise fuel metering for optimal performance and efficiency. The 10:1 compression ratio contributes to the engine’s respectable power output. The engine is longitudinally mounted in the chassis, driving the rear wheels through an eight-speed automatic transmission (8HP70). This transmission is a key component, offering smooth shifting and a wide gear ratio spread to maximize both towing capacity and fuel economy. The 8HP70 is known for its durability and responsiveness, making it well-suited for the demands of heavy-duty truck applications.
Driving Characteristics
The 6.4 Hemi V8 paired with the eight-speed automatic delivers a driving experience that prioritizes usable power and towing capability over outright speed. While 410 horsepower is substantial, the engine’s torque curve – peaking at 429 lb-ft – is where it truly shines. This allows for confident acceleration, even when heavily loaded or towing a trailer. The eight-speed automatic transmission is well-tuned, providing smooth and timely shifts. Compared to the base V6 engine, the 6.4 Hemi offers a significant performance upgrade, making it much more capable for demanding tasks. However, it doesn’t quite match the sheer pulling power of the Cummins diesel options. The gear ratios in the 8HP70 are optimized for both low-end torque and highway cruising, providing a comfortable and efficient driving experience. The truck feels planted and stable, even with a substantial payload, thanks to its robust chassis and well-tuned suspension.
Equipment & Trim Levels
The 6.4 Hemi engine was typically offered on higher trim levels of the RAM 2500/3500, such as the Laramie, Longhorn, and Limited. Standard features generally included premium cloth or leather upholstery, a user-friendly infotainment system with a large touchscreen display, and a comprehensive suite of safety features. Optional extras could include a premium sound system, heated and ventilated seats, a panoramic sunroof, and advanced driver-assistance systems like adaptive cruise control and lane departure warning. The interior appointments were generally a step above the base trims, offering a more refined and comfortable cabin experience. Exterior features often included chrome accents, power-adjustable mirrors, and upgraded lighting.
Chassis & Braking
The RAM 2500/3500 utilizes a fully boxed frame constructed from high-strength steel, providing a solid foundation for the truck’s substantial weight and capabilities. The front suspension features an independent multi-link design with coil springs, while the rear suspension also employs a multi-link setup with leaf springs. This configuration provides a comfortable ride quality, even when unladen. Braking duties are handled by four-wheel disc brakes with ABS, ensuring confident stopping power. The braking system is appropriately sized for the truck’s weight and towing capacity. Stabilizer bars are included to reduce body roll during cornering.
Market Reception & Comparison
The 6.4 Hemi-equipped RAM 2500/3500 received generally positive reviews from automotive critics. It was praised for its strong performance, comfortable ride, and well-appointed interior. Compared to the base V6 engine, the 6.4 Hemi offered a significant improvement in towing capacity and overall capability. However, the Cummins diesel variants remained the preferred choice for those prioritizing maximum towing power and fuel efficiency. Fuel economy with the 6.4 Hemi was respectable for a heavy-duty truck, but it lagged behind the diesel options. Reliability has been generally good, with the 6.4 Hemi proving to be a durable and dependable engine.
Legacy
The 6.4 Hemi V8 in the RAM 2500/3500 has established itself as a reliable and capable powertrain. On the used car market, these trucks hold their value relatively well, particularly those in good condition with well-maintained service records. The engine’s simplicity and robust construction contribute to its long-term durability. While newer RAM heavy-duty trucks offer even more advanced technology and features, the 2019-2025 models with the 6.4 Hemi remain a popular choice for those seeking a capable and dependable work truck with a comfortable driving experience.
