The RAM 2500/3500 Crew Cab Long I, specifically the facelifted version produced from 2013 to 2018, represented a significant evolution in the heavy-duty pickup truck segment. This generation, internally designated as the ‘DS’ series, built upon the foundation laid by its predecessors, offering increased capability, refinement, and technology. Within the 2500 and 3500 model lines, the 6.7-liter Cummins turbocharged diesel engine paired with a six-speed automatic transmission was a popular configuration, targeting buyers needing substantial towing and hauling capacity without sacrificing everyday drivability. This variant occupied a sweet spot in the lineup, offering a balance between the base gasoline engines and the more expensive, higher-output Cummins options.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Crew Cab Long I (facelift 2013) |
| Type (Engine) | 2500 6.7 Cummins TD (370 Hp) Automatic |
| Start of production | 2013 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5-6 |
| Doors | 4 |
| Fuel Type | Diesel |
| Weight-to-power ratio | 9.2 kg/Hp, 109.2 Hp/tonne |
| Weight-to-torque ratio | 3.1 kg/Nm, 319.9 Nm/tonne |
| Power | 370 Hp @ 2800 rpm |
| Power per litre | 55.3 Hp/l |
| Torque | 1084 Nm @ 1600 rpm (799.52 lb.-ft. @ 1600 rpm) |
| Maximum engine speed | 3200 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | ETJ |
| 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 | 16.2:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | OHV |
| Engine oil capacity | 11.4 l (12.05 US qt | 10.03 UK qt) |
| Coolant | 21.4 l (22.61 US qt | 18.83 UK qt) |
| Kerb Weight | 3389 kg (7471.47 lbs.) |
| Max. weight | 4536 kg (10000.17 lbs.) |
| Max load | 1147 kg (2528.7 lbs.) |
| Trunk (boot) space – maximum | 2115 l (74.69 cu. ft.) |
| Fuel tank capacity | 121 l (31.96 US gal | 26.62 UK gal) |
| Permitted trailer load with brakes (12%) | 7874 kg (17359.2 lbs.) |
| Length | 6589 mm (259.41 in.) |
| Width including mirrors | 2009 mm (79.09 in.) |
| Height | 1867 mm (73.5 in.) |
| Wheelbase | 4303 mm (169.41 in.) |
| Front track | 1742 mm (68.58 in.) |
| Rear (Back) track | 1732 mm (68.19 in.) |
| Minimum turning circle (turning diameter) | 16.2 m (53.15 ft.) |
| Approach angle | 13.4° |
| Departure angle | 18.0° |
| Ramp-over (brakeover) angle | 14.1° |
| 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 | 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 118T; 285/60 R20 115T |
| Wheel rims size | 8J x 18 ET43; 8J x 20 ET55 |
Powertrain & Engine Architecture
The heart of this RAM 2500/3500 variant is the 6.7-liter Cummins inline-six diesel engine, specifically the ETJ code. This engine is a robust, over-square design, meaning its bore is larger than its stroke, contributing to its strong low-end torque. The 370 horsepower and 1084 Nm (799.52 lb-ft) of torque are generated through a sophisticated diesel commonrail fuel injection system, delivering highly pressurized fuel directly into the cylinders. The engine utilizes an overhead valve (OHV) valvetrain, a design choice favored for its durability and simplicity. A turbocharger with an intercooler further enhances performance by forcing more air into the engine, increasing power output and efficiency. The six-speed automatic transmission, sourced from Aisin, was specifically designed to handle the immense torque produced by the Cummins engine. It features electronically controlled shifting and a robust internal construction to ensure reliability under heavy loads.
Driving Characteristics
The 6.7L Cummins with the automatic transmission delivers a driving experience focused on capability and usability. While not as quick as gasoline-powered trucks or those equipped with higher-output Cummins variants, this configuration provides ample power for towing and hauling. The automatic transmission’s gear ratios are optimized for maximizing torque at lower engine speeds, making it ideal for demanding tasks. Real-world acceleration is respectable, but the emphasis is on effortless pulling power. Compared to manual transmission versions, the automatic offers greater convenience, particularly in stop-and-go traffic or when navigating challenging terrain. The automatic also smooths out power delivery, making it less demanding to drive for extended periods. However, some drivers may prefer the more direct control offered by a manual gearbox.
Equipment & Trim Levels
The 2500/3500 Crew Cab Long I with the 6.7L Cummins and automatic transmission was typically offered in mid-range trim levels like SLT or Laramie. Standard features generally included air conditioning, power windows and locks, a basic audio system, and cloth upholstery. Higher trim levels added features such as leather upholstery, heated and ventilated seats, a premium audio system, navigation, and a variety of driver-assistance technologies. Optional extras included a sunroof, upgraded wheels, and various appearance packages. The Crew Cab configuration provided spacious seating for up to six passengers, making it a practical choice for families or work crews.
Chassis & Braking
The RAM 2500/3500 chassis is built around a robust fully boxed frame, designed to withstand the stresses of heavy-duty use. The suspension system features independent multi-link setups at both the front and rear, providing a comfortable ride quality even when the truck is loaded. Braking duties are handled by disc brakes on all four wheels, coupled with an Anti-lock Braking System (ABS) for enhanced safety. The rear axle ratios varied depending on the specific configuration and intended use, with lower ratios providing better towing capacity and higher ratios prioritizing fuel economy. Steering is typically a recirculating ball system, offering a solid and predictable feel.
Market Reception & Comparison
The 6.7L Cummins diesel with the automatic transmission was widely praised by automotive critics for its combination of power, refinement, and reliability. It consistently received positive reviews for its towing and hauling capabilities, as well as its relatively smooth and quiet operation compared to some competitors. Fuel economy, while not exceptional, was considered reasonable for a heavy-duty truck of its size and capability. Compared to the base gasoline engines, the Cummins diesel offered significantly more torque and better fuel efficiency when towing. Compared to the higher-output Cummins variants, this 370-horsepower version provided a more affordable entry point into the Cummins diesel lineup, making it accessible to a wider range of buyers.
Legacy
The 6.7L Cummins engine has earned a reputation for exceptional durability and longevity. Properly maintained, these engines can easily exceed 200,000 miles (320,000 kilometers) without major issues. The Aisin automatic transmission is also known for its reliability. As a result, these trucks hold their value well in the used car market. They remain popular choices for buyers seeking a capable and dependable heavy-duty pickup. Common maintenance items include regular oil changes, fuel filter replacements, and coolant flushes. While some components, such as the fuel injection pump and turbocharger, may require attention over time, the overall cost of ownership is generally considered reasonable given the truck’s capabilities.
