The RAM 2500/3500 Regular 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. Produced from 2019 through 2025, this configuration occupied a sweet spot in the lineup, balancing substantial towing and hauling capability with a degree of everyday usability. It was primarily marketed towards American consumers needing a robust work truck, or those desiring a capable machine for recreational pursuits like towing large trailers or boats. This variant was positioned as a step up from the gasoline-powered engines, offering superior torque and durability, while remaining more accessible than the highest-output Cummins options.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Regular 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 | 2-3 |
| Doors | 2 |
| Fuel Type | Diesel |
| Weight-to-power ratio | 8.8 kg/Hp, 113.7 Hp/tonne |
| Weight-to-torque ratio | 3 kg/Nm, 333.2 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 | 3253 kg (7171.64 lbs.) |
| Max. weight | 4536 kg (10000.17 lbs.) |
| Max load | 1283 kg (2828.53 lbs.) |
| Trunk (boot) space – maximum | 2115 l (74.69 cu. ft.) |
| Permitted trailer load with brakes (12%) | 8777 kg (19349.97 lbs.) |
| Length | 5892 mm (231.97 in.) |
| Width including mirrors | 2120 mm (83.46 in.) |
| Height | 2037 mm (80.2 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) | 333 mm (13.11 in.) |
| Minimum turning circle (turning diameter) | 13.8 m (45.28 ft.) |
| Approach angle | 22.8° |
| Departure angle | 29.9° |
| Ramp-over (brakeover) angle | 23.9° |
| 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 |
INTRODUCTION
The RAM 2500/3500 Regular Cab II (DT) generation, launched in 2019, represented a significant overhaul of the heavy-duty RAM lineup. Built on a fully redesigned frame, it offered increased strength, improved ride quality, and a more modern interior. The 6.7-liter Cummins diesel, in its 370 horsepower guise, was a cornerstone of this generation, providing a balance between power, efficiency, and reliability. This particular configuration, when paired with the 4×4 drivetrain and six-speed automatic transmission, was aimed at buyers who needed a capable work truck without the expense or complexity of the higher-output Cummins variants. The “Regular Cab” designation indicates a two-door body style, prioritizing functionality and work-oriented needs over passenger comfort.
Powertrain & Engine Architecture
At the heart of this RAM variant lies the 6.7-liter Cummins inline-six diesel engine. This engine, designated with various codes depending on specific calibration and emissions equipment, is a robust and well-respected powerplant known for its longevity. The 370 horsepower version utilizes a variable geometry turbocharger (VGT) and a common-rail fuel injection system to deliver a broad torque curve. The common-rail system, operating at extremely high pressures, allows for precise fuel metering and optimized combustion. The engine features four valves per cylinder, enhancing breathing and contributing to its power output. The six-speed automatic transmission, sourced from Aisin, is a heavy-duty unit designed to handle the substantial torque produced by the Cummins engine. It features electronically controlled shifts and a tow/haul mode for optimized performance when towing heavy loads. The transmission’s gear ratios are tuned to maximize both pulling power and fuel efficiency.
Driving Characteristics
The 2500/3500 with the 370 hp Cummins and automatic transmission delivers a driving experience focused on capability and dependability. While not as overtly powerful as the higher-output Cummins options, the 370 hp version provides ample torque – 1084 Nm (799.52 lb-ft) – readily available from low engine speeds. This makes it exceptionally well-suited for towing and hauling heavy loads. The automatic transmission shifts smoothly and predictably, although it may not be as quick to downshift as a manual transmission. Compared to the gasoline-powered RAM 2500/3500 models, the diesel offers significantly improved fuel economy, especially when towing. The ride quality, while firm due to the heavy-duty suspension, is surprisingly comfortable for a truck of this size. The 4×4 system provides excellent traction in a variety of conditions.
Equipment & Trim Levels
The 2500/3500 Regular Cab II (DT) with the 370 hp Cummins typically came standard with a functional, work-oriented interior. Standard features included air conditioning, a basic infotainment system with a touchscreen display, and vinyl upholstery. Higher trim levels, such as the Laramie or Limited, added features like leather upholstery, heated and ventilated seats, a premium sound system, and advanced safety technologies. Optional extras included a navigation system, a rear backup camera, and various towing packages. The Regular Cab configuration generally prioritized durability and ease of cleaning over luxury appointments.
Chassis & Braking
The chassis of the RAM 2500/3500 is a fully boxed frame constructed from high-strength steel. The front suspension utilizes an independent multi-link design with coil springs, while the rear suspension employs a multi-link setup with leaf springs. This configuration provides a good balance between ride comfort and load-carrying capacity. Braking duties are handled by disc brakes on all four wheels, with ABS (Anti-lock Braking System) as standard equipment. The braking system is sized appropriately for the truck’s weight and towing capacity. Depending on the specific configuration, some models may have been equipped with larger brake rotors and calipers for increased stopping power.
Market Reception & Comparison
The RAM 2500/3500 with the 370 hp Cummins engine received generally positive reviews from automotive critics. It was praised for its robust powertrain, comfortable ride, and impressive towing capacity. Compared to the gasoline-powered RAM 2500/3500 models, the diesel offered superior fuel economy and durability. Compared to the higher-output Cummins variants, the 370 hp version was seen as a more affordable and practical option for buyers who didn’t require the absolute maximum towing capacity. Some critics noted that the automatic transmission could be slow to downshift in certain situations, and that the interior, while functional, lacked the refinement of some competitors.
Legacy
The 6.7-liter Cummins engine, in all its iterations, has earned a reputation for exceptional reliability and longevity. The 370 horsepower version, while not as widely discussed as the higher-output variants, remains a popular choice in the used truck market. These trucks are known to accumulate high mileage with proper maintenance. Common maintenance items include regular oil changes, fuel filter replacements, and coolant flushes. The Aisin six-speed automatic transmission is also considered to be a durable and reliable unit. Overall, the RAM 2500/3500 Regular Cab II (DT) with the 370 hp Cummins engine represents a solid and dependable heavy-duty pickup truck that continues to provide years of service to its owners.
