The RAM 2500/3500 Regular 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 occupied a key position in the RAM lineup, bridging the gap between the base engine options and the more powerful Cummins diesel variants. It was primarily marketed towards buyers needing substantial towing and payload capacity without the added cost and complexity of a diesel powertrain. This model is a cornerstone of the DT generation, known for its robust construction and focus on work-oriented capability.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Regular 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 | 2-3 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 6.1 kg/Hp, 165 Hp/tonne |
| Weight-to-torque ratio | 4.3 kg/Nm, 234.2 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 | 2485-2700 kg, 5478.49 – 5952.48 lbs. |
| Max. weight | 4536 kg, 10000.17 lbs. |
| Max load | 1836-2051 kg, 4047.69 – 4521.68 lbs. |
| Trunk (boot) space – maximum | 2115 l, 74.69 cu. ft. |
| Permitted trailer load with brakes (12%) | 6840 kg, 15079.62 lbs. |
| Length | 5892 mm, 231.97 in. |
| Width including mirrors | 2120 mm, 83.46 in. |
| Height | 1981 mm, 77.99 in. |
| Wheelbase | 3560 mm, 140.16 in. |
| Front track | 1745 mm, 68.7 in. |
| Rear (Back) track | 1729 mm, 68.07 in. |
| Ride height (ground clearance) | 332 mm, 13.07 in. |
| Minimum turning circle (turning diameter) | 13.8 m, 45.28 ft. |
| Approach angle | 18.8° |
| Departure angle | 22.9° |
| Ramp-over (brakeover) angle | 20.8° |
| 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 |
INTRODUCTION
The RAM 2500/3500 Regular Cab II (DT) equipped with the 6.4-liter Hemi V8 and automatic transmission was introduced for the 2019 model year as part of the redesigned DT generation of RAM heavy-duty trucks. This configuration aimed to provide a balance of power, capability, and affordability within the RAM portfolio. Positioned as a mid-range offering, it catered to customers who required substantial towing and hauling capacity for work or recreational purposes but didn’t necessarily need the higher cost and complexity of the Cummins diesel engine. The Regular Cab configuration further emphasized its work-truck focus, offering a no-frills, utilitarian option for commercial users and those prioritizing functionality over passenger space.
Powertrain & Engine Architecture
At the heart of this variant lies the 6.4-liter (392 cubic inch) HEMI V8 engine, internally designated as the 6.4L Hemi. This engine is a naturally aspirated, overhead valve (OHV) design featuring multi-port fuel injection. The engine produces 410 horsepower at 5600 rpm and 429 lb-ft of torque at 4000 rpm. The cylinder bore measures 103.9 mm (4.09 inches) and the piston stroke is 94.6 mm (3.72 inches), resulting in a compression ratio of 10:1. The engine utilizes a cast iron block with aluminum cylinder heads. Paired with this engine is an eight-speed automatic transmission (8HP70), known for its smooth shifting and wide gear ratio spread. This transmission allows for efficient operation at highway speeds while providing ample gearing for towing and hauling heavy loads. The transmission is electronically controlled, optimizing shift points based on driving conditions and throttle input.
Driving Characteristics
The 6.4 Hemi V8 in the RAM 2500/3500 delivers a robust driving experience. While not as fuel-efficient as smaller engines, it provides ample power for everyday driving and demanding tasks. The eight-speed automatic transmission contributes to a relatively smooth and refined driving experience, with well-spaced gear ratios that keep the engine in its optimal power band. Compared to the manual transmission options, the automatic offers greater convenience, particularly in stop-and-go traffic or when towing. However, it does slightly diminish the driver’s control over gear selection. Compared to the Cummins diesel variants, the 6.4 Hemi offers quicker acceleration at lower speeds but lacks the diesel’s superior low-end torque and fuel economy when heavily loaded. The weight-to-power ratio of 6.1 kg/Hp translates to a responsive feel, though the truck’s substantial weight is always apparent.
Equipment & Trim Levels
The 2500/3500 Regular Cab with the 6.4 Hemi typically came standard with a functional, work-oriented interior. Standard features included a basic infotainment system with a touchscreen display, air conditioning, and vinyl upholstery. Higher trim levels, such as the Big Horn/Laramie, added features like leather upholstery, heated and ventilated seats, upgraded sound systems, and more advanced safety technologies. Optional extras included a navigation system, premium audio, and various appearance packages. The Regular Cab configuration generally featured a bench seat, accommodating up to three passengers, although the limited rear legroom made it less comfortable for extended trips.
Chassis & Braking
The RAM 2500/3500 utilizes a robust fully boxed frame construction, providing a solid foundation for heavy-duty use. The suspension system consists of independent multi-link suspension at both the front and rear, offering a comfortable ride quality despite the truck’s substantial weight. Braking duties are handled by disc brakes on all four wheels, coupled with an Anti-lock Braking System (ABS) for enhanced safety. The braking system is designed to handle the truck’s weight and the demands of towing heavy loads. The rear axle ratios varied depending on the specific configuration and intended use, influencing both towing capacity and fuel economy.
Market Reception & Comparison
The 6.4 Hemi-powered RAM 2500/3500 received generally positive reviews from automotive critics. It was praised for its strong performance, comfortable ride, and user-friendly technology. However, some reviewers noted that its fuel economy was lower than that of the diesel variants. Compared to the Cummins diesel, the 6.4 Hemi offered a lower initial cost and simpler maintenance requirements. The 6.4 Hemi also proved to be a reliable powertrain, with relatively few reported issues. Its positioning as a mid-range option made it an attractive choice for buyers who needed heavy-duty capability but didn’t want to pay the premium for a diesel engine.
Legacy
The 6.4 Hemi V8 in the RAM 2500/3500 has proven to be a durable and reliable powertrain. On the used car market, these trucks hold their value relatively well, particularly those that have been well-maintained. The engine’s simplicity and robust construction contribute to its longevity. While the Cummins diesel remains the preferred choice for those prioritizing maximum towing capacity and fuel economy, the 6.4 Hemi continues to be a popular option for buyers seeking a capable and affordable heavy-duty truck. The DT generation RAM 2500/3500, including this 6.4 Hemi variant, is considered a significant step forward in terms of ride quality, interior refinement, and overall capability in the heavy-duty truck segment.
