The RAM 2500/3500 Mega Cab I, specifically the facelifted version produced from 2013 to 2018, represented a significant evolution in the heavy-duty truck segment. This generation, internally designated as the DJ platform, offered a compelling blend of capability, comfort, and technology. Within the 2500 and 3500 lineups, the 5.7-liter Hemi V8 engine paired with a six-speed automatic transmission was a popular configuration, serving as a strong mid-range option for buyers seeking a balance between power and efficiency. This variant occupied a sweet spot in the market, appealing to those who didn’t require the ultimate towing capacity of the Cummins diesel but still demanded substantial performance for work and recreational use.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Mega Cab I (facelift 2013) |
| Type (Engine) | 2500 5.7 Hemi V8 (383 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 | Petrol (Gasoline) |
| Weight-to-power ratio | 8 kg/Hp, 124.4 Hp/tonne |
| Weight-to-torque ratio | 5.7 kg/Nm, 176 Nm/tonne |
| Power | 383 Hp @ 5600 rpm |
| Power per litre | 67.7 Hp/l |
| Torque | 542 Nm @ 4000 rpm, 399.76 lb.-ft. @ 4000 rpm |
| Maximum engine speed | 5800 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EZC |
| Engine displacement | 5654 cm3, 345.03 cu. in. |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 99.5 mm, 3.92 in. |
| Piston Stroke | 90.9 mm, 3.58 in. |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine oil capacity | 6.6 l, 6.97 US qt | 5.81 UK qt |
| Coolant | 17.3 l, 18.28 US qt | 15.22 UK qt |
| Kerb Weight | 3079 kg, 6788.03 lbs. |
| Max. weight | 4082 kg, 8999.27 lbs. |
| Max load | 1003 kg, 2211.24 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%) | 5007 kg, 11038.55 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 | 245/70 R17 116S; 265/70 R17 118S; 275/70 R18 118T |
| Wheel rims size | 7.5J x 17 ET57; 8J x 17 ET42; 8J x 18 ET43 |
Powertrain & Engine Architecture
At the heart of this RAM 2500/3500 variant lies the 5.7-liter Hemi V8 engine, designated as the EZC code. This engine is a member of Chrysler’s third-generation Hemi family, known for its robust construction and relatively simple design. It features a cast iron block with aluminum cylinder heads, and utilizes a multi-point fuel injection system to deliver fuel directly into the intake ports. The engine’s valvetrain employs two valves per cylinder, operated by hydraulic lifters and a single overhead camshaft. The 5.7L Hemi produces 383 horsepower at 5,600 rpm and 400 lb-ft of torque at 4,000 rpm. This power is then channeled through a six-speed automatic transmission (typically the 68RFE) designed to handle the substantial torque output of the V8. The 68RFE transmission is a heavy-duty unit featuring electronic control and multiple clutch packs for durability and smooth shifting.
Driving Characteristics
The 5.7 Hemi V8 with the six-speed automatic provided a comfortable and capable driving experience. While not as overtly powerful as the Cummins diesel options, it offered ample power for everyday driving and towing moderate loads. The automatic transmission was well-tuned, providing smooth gear changes and responsive acceleration. The gear ratios were optimized for both on-road cruising and towing, with a relatively low first gear for launching heavy loads and higher gears for fuel efficiency at highway speeds. Compared to manual transmission versions, the automatic offered greater convenience, particularly in stop-and-go traffic. However, some drivers noted a slight reduction in fuel economy and a less direct connection to the engine.
Equipment & Trim Levels
The 2500/3500 with the 5.7 Hemi V8 was typically offered in several trim levels, including STX, SLT, and Laramie. The base STX trim included standard features such as air conditioning, power windows and locks, a basic audio system, and vinyl upholstery. The SLT trim added features like cloth upholstery, upgraded audio, and keyless entry. 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.
Chassis & Braking
The RAM 2500/3500 chassis was designed for heavy-duty use, featuring a robust frame and heavy-duty suspension components. The front suspension utilized an independent multi-link design, while the rear suspension also employed a multi-link setup with coil springs. This configuration provided a comfortable ride, even when the truck was loaded. Braking duties were handled by four-wheel disc brakes with ABS (Anti-lock Braking System). The braking system was adequately sized for the truck’s weight and provided confident stopping power.
Market Reception & Comparison
The 5.7 Hemi V8-equipped RAM 2500/3500 received generally positive reviews. Critics praised its comfortable ride, spacious interior, and ample power for most tasks. However, some noted that its fuel economy was not as good as some competitors, and that the Cummins diesel offered superior towing capacity. Compared to the 6.7L Cummins diesel, the 5.7 Hemi was significantly less expensive to purchase and maintain, making it an attractive option for buyers who didn’t require the ultimate in towing performance. The 5.7L also offered a quieter and smoother driving experience than the diesel.
Legacy
The 5.7 Hemi V8 in the 2013-2018 RAM 2500/3500 has proven to be a relatively reliable powertrain. While some owners have reported minor issues with the fuel injection system or the transmission, these are generally not widespread. The engine is known for its durability and longevity, and many examples are still on the road today. In the used car market, these trucks hold their value reasonably well, particularly those in good condition with low mileage. The combination of capability, comfort, and affordability has made the 5.7 Hemi-powered RAM 2500/3500 a popular choice for truck buyers.
