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 fourth generation of the RAM heavy-duty line, built upon the foundation laid by its predecessors, offering increased capability, refinement, and technology. The 2500 model, equipped with the 6.7-liter Cummins turbodiesel engine producing 370 horsepower and paired with a six-speed automatic transmission, occupied a sweet spot in the lineup, balancing robust performance with everyday usability. This configuration was particularly popular among buyers needing substantial towing and hauling capacity without the extreme duty ratings 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 (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 | 9.4 kg/Hp, 106.3 Hp/tonne |
| Weight-to-torque ratio | 3.2 kg/Nm, 311.3 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 | 3482 kg (7676.5 lbs.) |
| Max. weight | 4536 kg (10000.17 lbs.) |
| Max load | 1054 kg (2323.67 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%) | 7779 kg (17149.76 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, 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 turbodiesel engine, designated as the ETJ code. This engine represented a significant leap forward in diesel technology, featuring a robust cast iron block, a 24-valve cylinder head (two valves per cylinder), and a sophisticated common-rail fuel injection system. The common-rail system, operating at extremely high pressures, allowed for precise fuel metering and optimized combustion, contributing to both power and efficiency. The turbocharger, coupled with an intercooler, further enhanced performance by increasing air intake density. The engine’s OHV valvetrain, while traditional, proved to be exceptionally durable and reliable. The six-speed automatic transmission, sourced from Aisin, was specifically designed to handle the immense torque output of the Cummins engine. It featured electronically controlled shifting and a tow/haul mode for optimized performance when towing heavy loads.
Driving Characteristics
The 370 horsepower and 1084 lb-ft of torque delivered by this powertrain combination translated into impressive real-world performance. While not as overtly powerful as some of the gasoline-powered alternatives or the higher-output Cummins variants, the 6.7L diesel offered a broad, flat torque curve, making it exceptionally capable for towing and hauling. The automatic transmission, while smooth, wasn’t particularly quick to downshift, meaning drivers often needed to anticipate acceleration needs. Compared to the manual transmission equipped versions, the automatic offered greater convenience, especially in stop-and-go traffic, but at the expense of some driver engagement and fuel economy. The gear ratios were optimized for towing, prioritizing low-end grunt over outright acceleration.
Equipment & Trim Levels
The 2500 with the 6.7L Cummins and automatic transmission was typically offered in several trim levels, including SLT, Laramie, and Limited. The SLT trim served as the entry point, offering a respectable level of standard equipment, including air conditioning, power windows and locks, a basic audio system, and vinyl upholstery. The Laramie trim added features like leather upholstery, heated front seats, a premium audio system, and chrome exterior accents. The Limited trim represented the pinnacle of luxury, with features like premium leather, wood trim, navigation, and advanced safety technologies. Optional extras included a sunroof, rear-seat entertainment system, and various towing packages.
Chassis & Braking
The RAM 2500/3500 chassis was built around a robust fully boxed frame, designed to withstand the stresses of heavy-duty use. The suspension system featured independent multi-link front suspension and a multi-leaf rear suspension. The rear suspension was tuned to prioritize load-carrying capacity over ride comfort. Braking duties were handled by disc brakes on all four wheels, with ABS (Anti-lock Braking System) as standard equipment. The braking system was adequately sized for the truck’s weight and towing capacity, but drivers needed to account for the substantial stopping distances when fully loaded.
Market Reception & Comparison
The 2500/3500 with the 6.7L Cummins and automatic transmission was generally well-received by critics and consumers alike. It was praised for its robust performance, impressive towing capacity, and relatively comfortable ride. Compared to the gasoline-powered RAM 2500 models, the diesel offered significantly better fuel economy and torque. However, it also came with a higher price tag and potentially higher maintenance costs. Compared to the 3500 models, the 2500 offered a slightly lower GVWR (Gross Vehicle Weight Rating) but was often sufficient for most users’ needs. The 3500 was favored by those requiring maximum towing and hauling capacity.
Legacy
The 6.7L Cummins engine, in all its iterations, has earned a reputation for exceptional durability and longevity. Properly maintained, these engines can easily exceed 200,000 miles, and many have surpassed 300,000 or even 400,000 miles. The automatic transmission, while not as bulletproof as the manual, has also proven to be relatively reliable. In the used car market, these trucks hold their value well, particularly those in good condition with well-documented maintenance histories. The 2013-2018 facelifted models are particularly desirable due to their updated styling and improved interior features. They remain a popular choice for those seeking a capable and reliable heavy-duty pickup truck.
