The RAM 2500/3500 Mega Cab I, specifically the facelifted version introduced in 2014, represented a significant evolution in the heavy-duty pickup truck segment. This generation, spanning from 2014 to 2018, offered a compelling blend of capability, comfort, and technology. The 2500 model, equipped with the 6.4-liter Hemi V8 engine and a six-speed automatic transmission, occupied a sweet spot in the lineup, providing substantial power and towing capacity without the extreme duty-cycle focus of the 3500 series. This configuration was aimed at buyers needing serious capability for work or recreation, but also desiring a more refined daily driving experience. The Mega Cab body style, offering significantly increased rear-seat space, further enhanced the truck’s appeal for families and those frequently carrying passengers.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Mega Cab I (facelift 2013) |
| Type (Engine) | 2500 6.4 Hemi V8 (410 Hp) 4×4 Automatic |
| Start of production | 2014 |
| 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 | 7.9 kg/Hp |
| Weight-to-torque ratio | 5.5 kg/Nm |
| Power | 410 Hp @ 5600 rpm |
| Power per litre | 63.9 Hp/l |
| Torque | 582 Nm @ 4000 rpm (429.26 lb.-ft. @ 4000 rpm) |
| Maximum engine speed | 5800 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | ESA |
| Engine displacement | 6417 cm3 (391.59 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103.9 mm (4.09 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV |
| Engine oil capacity | 6.6 l (6.97 US qt | 5.81 UK qt) |
| Coolant | 15.7 l (16.59 US qt | 13.81 UK qt) |
| Kerb Weight | 3224 kg (7107.7 lbs.) |
| Max. weight | 4536 kg (10000.17 lbs.) |
| Max load | 1312 kg (2892.46 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%) | 5548 kg (12231.25 lbs.) |
| Length | 6309 mm (248.39 in.) |
| Width including mirrors | 2009 mm (79.09 in.) |
| Height | 1989 mm (78.31 in.) |
| Wheelbase | 4064 mm (160 in.) |
| Front track | 1735 mm (68.31 in.) |
| Rear (Back) track | 1732 mm (68.19 in.) |
| Minimum turning circle (turning diameter) | 14.2 m (46.59 ft.) |
| Approach angle | 23.9° |
| Departure angle | 23.0° |
| Ramp-over (brakeover) angle | 18.3° |
| 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) |
| Power steering | Hydraulic Steering |
| Tires size | 275/70 R18 118T; 285/60 R20 115H |
| Wheel rims size | 8J x 18 ET43; 8J x 20 ET55 |
Powertrain & Engine Architecture
The heart of this RAM 2500 variant is the 6.4-liter (392 cubic inch) Hemi V8 engine, designated as the ESA code. This engine is a naturally aspirated, overhead valve (OHV) design, known for its robust construction and relatively simple maintenance requirements. It utilizes a multi-port fuel injection system, delivering fuel directly into the intake ports. The 6.4 Hemi benefits from variable valve timing (VVT) technology, optimizing performance and fuel efficiency across a wider range of engine speeds. The engine produces 410 horsepower at 5,600 rpm and 429 lb-ft of torque at 4,000 rpm. This output is delivered through a six-speed automatic transmission, providing smooth and responsive shifting. The transmission is electronically controlled, adapting to driving conditions and driver input. The 4×4 system is part-time, allowing the driver to select between two-wheel drive and four-wheel drive modes as needed.
Driving Characteristics
The 6.4 Hemi V8, paired with the six-speed automatic, delivers a confident and capable driving experience. While not as fuel-efficient as smaller displacement engines or diesel options, it provides ample power for towing, hauling, and everyday driving. The automatic transmission is well-tuned, offering smooth gear changes and a responsive feel. Compared to the 5.7L Hemi V8 found in lower trims, the 6.4 offers a noticeable increase in power and torque, making it more suitable for demanding tasks. The gear ratios are optimized for both low-end grunt and highway cruising. The truck feels planted and stable, even when heavily loaded, thanks to its robust chassis and well-tuned suspension. It doesn’t possess the nimble handling of smaller pickups, but it provides a comfortable and predictable ride.
Equipment & Trim Levels
The 2500 with the 6.4 Hemi typically came in mid-range trim levels, such as the SLT or Laramie. Standard features included air conditioning, power windows and locks, a basic infotainment system with a touchscreen display, and cloth upholstery. Higher trim levels added features like leather upholstery, heated and ventilated front seats, a premium sound system, and advanced safety technologies. The Mega Cab configuration offered significantly more rear-seat legroom than the standard cab, making it ideal for families or passengers. Optional extras included a sunroof, navigation system, and various towing packages.
Chassis & Braking
The RAM 2500/3500 utilizes a heavy-duty chassis designed to withstand the stresses of towing and hauling. The suspension system consists of independent multi-link suspension at both the front and rear, providing a comfortable ride and good handling characteristics. Braking duties are handled by disc brakes on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety and control during emergency braking situations. Hydraulic power steering provides a responsive and predictable steering feel.
Market Reception & Comparison
The 6.4 Hemi-equipped RAM 2500 received generally positive reviews from automotive critics. It was praised for its powerful engine, comfortable ride, and spacious interior. Compared to the diesel-powered RAM 2500/3500, the 6.4 Hemi offered a lower initial cost but sacrificed fuel economy. Compared to the 5.7L Hemi, it provided a significant performance upgrade. Reliability was generally considered good, although some owners reported issues with the air suspension system (if equipped). Fuel economy was typical for a heavy-duty pickup truck, averaging around 13-15 mpg in mixed driving.
Legacy
The 6.4 Hemi V8 has proven to be a durable and reliable engine, and the RAM 2500/3500 from this generation remains a popular choice in the used truck market. The ESA engine code is well-regarded for its longevity and relatively straightforward maintenance. These trucks continue to offer a compelling combination of capability, comfort, and value, making them a practical choice for buyers needing a heavy-duty pickup for work or recreation. The Mega Cab configuration, in particular, holds its value well due to its spacious interior and family-friendly appeal.
