The RAM 2500/3500 Mega Cab 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 DJ chassis, built upon the foundation laid by its predecessors, offering increased capability, refinement, and a broader range of configurations. The 2500 model, paired with the 6.7-liter Cummins turbocharged diesel engine producing 350 horsepower, occupied a sweet spot in the lineup, balancing robust performance with reasonable fuel economy for its class. This variant was particularly popular among those needing substantial towing and hauling capacity without opting for the ultimate capabilities of the 3500 series.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Mega Cab I (facelift 2013) |
| Type (Engine) | 2500 6.7 Cummins TD (350 Hp) |
| 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 | 10 kg/Hp, 99.6 Hp/tonne |
| Weight-to-torque ratio | 4 kg/Nm, 250.8 Nm/tonne |
| Power | 350 Hp @ 2800 rpm |
| Power per litre | 52.3 Hp/l |
| Torque | 881 Nm @ 1400 rpm (649.79 lb.-ft. @ 1400 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 | 3513 kg (7744.84 lbs.) |
| Max. weight | 4536 kg (10000.17 lbs.) |
| Max load | 1023 kg (2255.33 lbs.) |
| Trunk (boot) space – maximum | 1628 l (57.49 cu. ft.) |
| Fuel tank capacity | 117 l (30.91 US gal | 25.74 UK gal) |
| Permitted trailer load with brakes (12%) | 7298 kg (16089.34 lbs.) |
| Length | 6309 mm (248.39 in.) |
| Width including mirrors | 2009 mm (79.09 in.) |
| Height | 1882 mm (74.09 in.) |
| Wheelbase | 4077 mm (160.51 in.) |
| Front track | 1742 mm (68.58 in.) |
| Rear (Back) track | 1732 mm (68.19 in.) |
| Minimum turning circle (turning diameter) | 15.4 m (50.52 ft.) |
| Approach angle | 14.0° |
| Departure angle | 19.1° |
| Ramp-over (brakeover) angle | 15.8° |
| 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 | 6 gears, manual 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 |
INTRODUCTION
The 2013-2018 RAM 2500/3500 Mega Cab I facelift brought a host of improvements to the already capable heavy-duty truck line. The 6.7-liter Cummins diesel, in its 350 horsepower guise, was a cornerstone of this model’s appeal. Positioned within the RAM lineup, this configuration served as a strong mid-range offering, appealing to buyers who needed significant towing and payload capacity but didn’t necessarily require the maximum output of the higher-tuned Cummins variants. The Mega Cab body style, offering expansive rear-seat room, further enhanced the truck’s practicality for families and crews.
Powertrain & Engine Architecture
The heart of this RAM 2500 variant is the 6.7-liter Cummins inline-six diesel engine, designated with the ETJ code. This engine represents a significant departure from earlier Cummins designs, incorporating advanced technologies for improved performance and emissions control. It utilizes a high-pressure common rail fuel injection system, delivering fuel directly into the cylinders at extremely high pressures for optimal combustion. The engine features an overhead valve (OHV) valvetrain, a design choice favored for its durability and simplicity. A variable geometry turbocharger (VGT) and intercooler work in tandem to boost power and efficiency. The 350 horsepower output is achieved at 2800 rpm, while the impressive 881 Nm (649.79 lb-ft) of torque is readily available at a low 1400 rpm, making it ideal for towing and hauling. The 6-speed manual transmission was standard, providing drivers with full control over gear selection.
Driving Characteristics
The 6.7L Cummins with 350 hp and the 6-speed manual transmission delivers a robust and capable driving experience. While not as overtly powerful as the higher-output Cummins variants, this configuration provides ample power for everyday driving and demanding tasks. The low-end torque is particularly noteworthy, allowing for effortless towing and hauling even when fully loaded. The manual transmission, while requiring more driver involvement than an automatic, offers precise control and a more connected feel. Compared to the automatic transmission options, the manual provides better engine braking on descents and potentially slightly improved fuel economy. The gear ratios are well-suited for both on-road cruising and off-road work, providing a balance between acceleration and fuel efficiency. The truck’s substantial weight is noticeable, but the strong chassis and suspension contribute to a stable and controlled ride.
Equipment & Trim Levels
The 2500/3500 Mega Cab I with the 6.7L Cummins and manual transmission was typically offered in several trim levels, including STX, SLT, and Laramie. The base STX trim provided essential features such as air conditioning, a basic audio system, and vinyl upholstery. The SLT trim added features like cloth upholstery, power windows and locks, and a more advanced audio system. The Laramie trim represented the premium offering, with leather upholstery, heated and ventilated front seats, a premium audio system, and a host of other luxury features. Optional extras included a navigation system, a rear-seat entertainment system, and various towing packages. The Mega Cab configuration, regardless of trim level, offered significantly more rear-seat space than the standard cab models.
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 front suspension utilizes an independent multi-link setup, providing a comfortable ride and good handling characteristics. The rear suspension also employs a multi-link design, contributing to improved stability and load-carrying capacity. Braking duties are handled by disc brakes on all four wheels, providing ample stopping power even when towing heavy loads. An Anti-lock Braking System (ABS) is standard, enhancing safety and control. The truck’s substantial weight and high center of gravity necessitate a careful driving approach, particularly when cornering.
Market Reception & Comparison
The 2013-2018 RAM 2500/3500 with the 6.7L Cummins 350hp engine received generally positive reviews from automotive critics. It was praised for its powerful engine, comfortable ride, and spacious interior. Compared to the higher-output Cummins variants, this configuration offered a more balanced combination of performance and fuel economy. The manual transmission was appreciated by enthusiasts for its control and engagement, although some found it less convenient than an automatic. Against competitors like the Ford Super Duty and Chevrolet Silverado/GMC Sierra, the RAM 2500/3500 was often cited as offering a more refined and comfortable driving experience.
Legacy
The 6.7-liter Cummins engine has proven to be exceptionally durable and reliable, and the 350 horsepower variant is no exception. These trucks have maintained strong resale values in the used car market, reflecting their reputation for longevity and capability. While routine maintenance is essential, the Cummins engine is known for its ability to withstand high mileage with proper care. Common maintenance items include regular oil changes, fuel filter replacements, and coolant flushes. The 2013-2018 RAM 2500/3500 Mega Cab I with the 6.7L Cummins 350hp engine remains a popular choice for those seeking a capable and reliable heavy-duty pickup truck.
