The RAM 2500/3500 Mega Cab II (DT) with the 6.7-liter Cummins turbocharged diesel engine producing 370 horsepower and paired with a six-speed automatic transmission represents a significant offering in the heavy-duty pickup truck segment. Introduced for the 2019 model year and continuing through 2025, this configuration aimed to balance substantial towing and hauling capability with a degree of everyday usability. Positioned as a mid-to-upper trim level option within the broader 2500/3500 lineup, it catered to buyers needing serious truck performance without necessarily opting for the highest-output Cummins variants or the specialized configurations of the 3500 models. This generation, designated DT, brought substantial improvements in interior refinement, technology, and overall ride quality compared to its predecessors.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Mega Cab II (DT) |
| Type (Engine) | 2500 6.7 Cummins TD (370 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 | Diesel |
| Weight-to-power ratio | 9.7 kg/Hp, 103.6 Hp/tonne |
| Weight-to-torque ratio | 3.3 kg/Nm, 303.6 Nm/tonne |
| Power | 370 Hp @ 2800 rpm |
| Power per litre | 55.3 Hp/l |
| Torque | 1084 Nm @ 1700 rpm (799.52 lb.-ft. @ 1700 rpm) |
| Maximum engine speed | 3200 rpm |
| Engine layout | Front, Longitudinal |
| 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 | 19:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 11.4 l (12.05 US qt | 10.03 UK qt) |
| Coolant | 20.8 l (21.98 US qt | 18.3 UK qt) |
| Kerb Weight | 3571 kg (7872.71 lbs.) |
| Max. weight | 4536 kg (10000.17 lbs.) |
| Max load | 965 kg (2127.46 lbs.) |
| Trunk (boot) space – maximum | 1628 l (57.49 cu. ft.) |
| Permitted trailer load with brakes (12%) | 7493 kg (16519.24 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 | 6 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
At the heart of this RAM 2500/3500 variant lies the 6.7-liter Cummins inline-six diesel engine. This engine, designated with various codes depending on the specific year and emissions configuration, is a robust and well-regarded powerplant known for its durability and torque output. The 370 horsepower version utilizes a variable geometry turbocharger (VGT) and a high-pressure common rail fuel injection system to optimize performance and efficiency. The common rail system allows for multiple injection events per combustion cycle, improving fuel atomization and reducing emissions. The engine features a cast iron block and head, contributing to its longevity. The six-speed automatic transmission, typically the Aisin AS68RC, is a heavy-duty unit designed to handle the substantial torque produced by the Cummins engine. This transmission is known for its smooth shifting and reliability, and features a tow/haul mode to optimize performance when towing heavy loads.
Driving Characteristics
The 370 hp/1084 lb-ft configuration provides a compelling blend of power and usability. While not as overtly powerful as the higher-output Cummins variants (400 hp or 420 hp), it delivers ample torque for towing and hauling, making it suitable for a wide range of tasks. The automatic transmission provides convenient operation, particularly in stop-and-go traffic or when navigating challenging terrain. The gear ratios are optimized for towing, with lower gears providing strong pulling power and higher gears offering comfortable highway cruising. Compared to manual transmission equipped models, the automatic offers less driver involvement but greater ease of use. Compared to the higher horsepower Cummins engines, this variant feels less aggressive in its acceleration, but the difference is often negligible for most real-world applications.
Equipment & Trim Levels
The 2500/3500 Mega Cab II (DT) with the 6.7L Cummins and automatic transmission was typically offered in mid-to-upper trim levels such as the Laramie, Longhorn, and Limited. Standard features generally included a premium interior with leather upholstery, heated and ventilated front seats, a large touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, and a comprehensive suite of safety features. Optional extras could include a sunroof, premium audio system, navigation, and various driver-assistance technologies. The Mega Cab configuration provides exceptionally spacious rear seating, making it ideal for families or crews.
Chassis & Braking
The RAM 2500/3500 utilizes a robust chassis designed to withstand the stresses of heavy-duty use. The suspension system features independent multi-link front suspension and a multi-leaf rear suspension. Braking duties are handled by four-wheel disc brakes with ABS. The braking system is appropriately sized for the vehicle’s weight and towing capacity. Heavy-duty stabilizer bars are typically included to reduce body roll during cornering. The 4×4 system provides excellent traction in a variety of conditions, with selectable drive modes for different terrains.
Market Reception & Comparison
Critics generally praised the RAM 2500/3500 for its comfortable ride, refined interior, and powerful engine options. The 6.7L Cummins with 370 hp was viewed as a sweet spot in the lineup, offering a good balance of performance and fuel economy. Fuel economy, while not a primary concern for truck buyers, was generally considered competitive within the heavy-duty segment. Compared to the Ford Super Duty and Chevrolet Silverado/GMC Sierra, the RAM 2500/3500 was often lauded for its superior ride quality and interior appointments. Reliability has been generally good, with the Cummins engine proving to be exceptionally durable.
Legacy
The 6.7L Cummins-powered RAM 2500/3500 (DT) has established a strong reputation for reliability and longevity. These trucks continue to hold their value well in the used car market, and are sought after by buyers who need a capable and dependable workhorse. The Aisin transmission has also proven to be exceptionally durable, contributing to the overall reliability of the powertrain. With proper maintenance, these trucks are expected to provide many years of service, making them a solid investment for those requiring a heavy-duty pickup.
