The RAM 2500/3500 Mega Cab II (DT) represents the second generation of the heavy-duty RAM truck line, produced from 2019 to 2025. Within this generation, the 2500 model equipped with the 6.4-liter Hemi V8 engine and a six-speed automatic transmission, coupled with a 4×4 drivetrain, occupied a significant position as a workhorse offering a balance between capability, comfort, and price. This configuration was aimed at buyers needing substantial towing and payload capacity without opting for the more expensive and complex Cummins diesel options. It served as a popular choice for both commercial users and individuals requiring a powerful truck for recreational purposes.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Mega Cab II (DT) |
| Type (Engine) | 2500 6.4 Hemi V8 (410 Hp) 4×4 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 | 7.8 kg/Hp, 128.5 Hp/tonne |
| Weight-to-torque ratio | 5.5 kg/Nm, 182.4 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 | 3191 kg, 7034.95 lbs |
| Max. weight | 4536 kg, 10000.17 lbs |
| Max load | 1345 kg, 2965.22 lbs |
| Trunk (boot) space – maximum | 1628 l, 57.49 cu. ft. |
| Permitted trailer load with brakes (12%) | 6350 kg, 13999.35 lbs |
| Length | 6348 mm, 249.92 in |
| Width including mirrors | 2120 mm, 83.46 in |
| Height | 2036 mm, 80.16 in |
| Wheelbase | 4074 mm, 160.39 in |
| Front track | 1745 mm, 68.7 in |
| Rear (Back) track | 1729 mm, 68.07 in |
| Ride height (ground clearance) | 334 mm, 13.15 in |
| Minimum turning circle (turning diameter) | 15.6 m, 51.18 ft |
| Approach angle | 23.3° |
| Departure angle | 25.7° |
| Ramp-over (brakeover) angle | 23.2° |
| Drive wheel | All wheel drive (4×4) |
| 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) |
| Tires size | 275/70 R18 E; 285/60 R20E |
| Wheel rims size | 8.0J x 18; 8J x 20 |
Powertrain & Engine Architecture
The heart of this RAM 2500 variant is 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, featuring overhead valve (OHV) valvetrain and multi-port fuel injection. The engine produces 410 horsepower at 5,600 rpm and 429 lb-ft of torque at 4,000 rpm. The 6.4L Hemi utilizes a cast iron block with aluminum cylinder heads, contributing to its robust construction. The engine’s design prioritizes low-end torque, making it well-suited for heavy-duty applications. Paired with this engine is a six-speed automatic transmission (68RFE), known for its durability and ability to handle the engine’s substantial output. The transmission features electronically controlled shifting and tow/haul mode for optimized performance when towing.
Driving Characteristics
The 6.4L Hemi-powered RAM 2500 delivers a confident and capable driving experience. While not as fuel-efficient as the diesel options, the gasoline engine provides a more familiar driving feel and quicker acceleration. The six-speed automatic transmission is well-matched to the engine’s torque curve, providing smooth shifts and responsive performance. The 4×4 system offers excellent traction in various conditions, making it suitable for both on-road and off-road use. Compared to the 5.7L Hemi V8, the 6.4L offers a noticeable increase in power and torque, resulting in improved towing and hauling capabilities. However, it doesn’t quite match the sheer pulling power of the Cummins diesel engines, which are favored by those who prioritize maximum towing capacity above all else. The gear ratios in the 68RFE transmission are optimized for towing, with lower gears providing ample torque for getting heavy loads moving.
Equipment & Trim Levels
The 2500 with the 6.4L Hemi was typically offered in several trim levels, including Tradesman, Big Horn/Laramie, and Limited. The Tradesman trim served as the base model, offering essential features such as air conditioning, a basic infotainment system, and vinyl upholstery. The Big Horn/Laramie trims added more comfort and convenience features, such as cloth or leather upholstery, upgraded infotainment systems with larger touchscreens, and additional chrome exterior trim. The Limited trim represented the highest level of luxury, offering premium leather upholstery, advanced safety features, and a host of convenience options. Standard features across most trims included a rearview camera, keyless entry, and power windows and locks. Optional extras included a sunroof, navigation system, premium sound system, and various driver-assistance technologies.
Chassis & Braking
The RAM 2500/3500 utilizes a robust fully boxed frame construction, providing a solid foundation for its heavy-duty capabilities. The front suspension features an independent multi-link setup with coil springs, while the rear suspension employs a multi-link configuration with leaf springs. This suspension design provides a comfortable ride while maintaining excellent load-carrying capacity. Braking duties are handled by four-wheel disc brakes with ABS (Anti-lock Braking System). The braking system is designed to provide confident stopping power even when towing heavy loads. Depending on the trim level and options selected, the truck may also be equipped with features such as brake sway control and hill start assist.
Market Reception & Comparison
The 6.4L Hemi-equipped RAM 2500 received generally positive reviews from automotive critics. It was praised for its powerful engine, comfortable ride, and capable towing and hauling performance. However, its fuel economy was often criticized, as it falls short of the diesel options. Compared to the 5.7L Hemi V8, the 6.4L offered a significant performance upgrade, making it a popular choice for buyers who needed more power. When compared to the Cummins diesel engines, the 6.4L Hemi offered a lower initial cost but lacked the same level of towing capacity and fuel efficiency. The 6.4L Hemi was often seen as a sweet spot for those who wanted a powerful and capable truck without the added expense and complexity of a diesel engine.
Legacy
The 6.4L Hemi engine has proven to be a reliable and durable powertrain in the RAM 2500/3500. While not immune to the occasional issue, the engine is generally well-regarded for its longevity and relatively low maintenance costs. In the used car market, these trucks hold their value reasonably well, particularly those that have been well-maintained. The combination of power, capability, and relative affordability has made the 6.4L Hemi-powered RAM 2500 a popular choice among truck buyers, and it continues to be a sought-after vehicle in the used market today. Its reputation for being a workhorse that can handle a variety of tasks has solidified its place as a capable and dependable heavy-duty truck.
