Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Crew Cab Long I (facelift 2013) |
| Type (Engine) | 3500 6.7 HO Cummins TD (385 Hp) 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 | Diesel |
| Weight-to-power ratio | 9 kg/Hp, 111.7 Hp/tonne |
| Weight-to-torque ratio | 3 kg/Nm, 334.1 Nm/tonne |
| Power | 385 Hp @ 2800 rpm |
| Power per litre | 57.5 Hp/l |
| Torque | 1152 Nm @ 1700 rpm (849.67 lb.-ft. @ 1700 rpm) |
| Maximum engine speed | 3200 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | ETK |
| 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 | 4 |
| 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 | 3448 kg (7601.54 lbs.) |
| Max. weight | 5443 kg (11999.76 lbs.) |
| Max load | 1995 kg (4398.22 lbs.) |
| Trunk (boot) space – maximum | 2115 l (74.69 cu. ft.) |
| Permitted trailer load with brakes (12%) | 7815 kg (17229.13 lbs.) |
| Length | 6586 mm (259.29 in.) |
| Width including mirrors | 2009 mm (79.09 in.) |
| Height | 1986 mm (78.19 in.) |
| Wheelbase | 4290 mm (168.9 in.) |
| Front track | 1720 mm (67.72 in.) |
| Rear (Back) track | 1704 mm (67.09 in.) |
| Minimum turning circle (turning diameter) | 16.2 m (53.15 ft.) |
| Approach angle | 21.0° |
| Departure angle | 23.7° |
| Ramp-over (brakeover) angle | 19.5° |
| 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 Aisin |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Leaf spring |
| Front brakes | Disc |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Power steering | Hydraulic Steering |
| Tires size | 285/60 R20 115T |
| Wheel rims size | 8J x 20 ET55 |
The RAM 2500/3500 Crew Cab Long I, as updated with a facelift in 2013, represented a significant evolution in the heavy-duty pickup truck segment. Specifically, the 3500 model equipped with the 6.7-liter High Output (HO) Cummins turbocharged diesel engine paired with an automatic transmission, produced from 2014 to 2018, was a popular configuration for those needing substantial towing and hauling capability. This variant occupied a premium position within the RAM lineup, offering a balance of power, refinement, and practicality for both work and personal use. It built upon the foundation of the previous generation, enhancing interior features, ride quality, and overall performance.
Powertrain & Engine Architecture
The heart of this RAM 3500 variant is the 6.7-liter Cummins ETK inline-six diesel engine. This engine is a robust and well-regarded powerplant known for its durability and torque output. The “HO” designation signifies the High Output version, which featured a larger turbocharger and revised engine management to deliver 385 horsepower and a massive 1152 Nm (849.67 lb-ft) of torque. The engine utilizes a diesel commonrail fuel injection system, providing precise fuel delivery for optimal combustion and efficiency. The overhead valve (OHV) valvetrain, while a more traditional design, contributes to the engine’s longevity and ease of maintenance. The engine’s robust construction and relatively simple design have made it a favorite among diesel enthusiasts.
The automatic transmission used in this configuration is a heavy-duty six-speed unit manufactured by Aisin. This transmission is specifically designed to handle the high torque output of the Cummins engine and provide smooth, reliable shifting. The transmission’s gear ratios are optimized for both towing and everyday driving, offering a balance of power and fuel economy.
Driving Characteristics
The 6.7L HO Cummins with the Aisin automatic delivers a driving experience focused on capability and confidence. While not a sports truck, the abundant torque allows for effortless acceleration, even when heavily loaded or towing. The automatic transmission shifts smoothly and predictably, making it easy to manage power delivery. Compared to the standard output Cummins or the gasoline engine options, this variant provides significantly more pulling power. The 6-speed automatic, while not as quick-shifting as some newer transmissions, is known for its durability and ability to withstand the stresses of heavy-duty use. The substantial weight of the truck and the characteristics of the diesel engine mean that responsiveness isn’t as immediate as in lighter vehicles, but the sheer force available is impressive.
Equipment & Trim Levels
The 3500 Crew Cab Long I typically came standard with features like air conditioning, power windows and locks, a basic audio system, and vinyl upholstery. However, the specific trim level (e.g., SLT, Laramie, Limited) dictated the level of luxury and convenience features included. Higher trims offered leather upholstery, heated and ventilated seats, a premium sound system, navigation, and advanced safety features. Optional extras included a sunroof, upgraded wheels, and various appearance packages. The Crew Cab configuration provided ample space for passengers, making it a comfortable choice for families or crews.
Chassis & Braking
The RAM 3500 features a robust chassis designed to withstand the stresses of heavy-duty use. The front suspension utilizes an independent multi-link design for improved ride quality and handling, while the rear suspension employs a traditional leaf spring setup for durability and load-carrying capacity. 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. Hydraulic power steering provides responsive and precise steering feel.
Market Reception & Comparison
The RAM 3500 with the 6.7L HO Cummins and automatic transmission was generally well-received by critics and consumers alike. It was praised for its powerful engine, smooth transmission, and comfortable ride. Compared to competitors like the Ford Super Duty and Chevrolet Silverado HD, the RAM 3500 often stood out for its refined interior and user-friendly features. Fuel economy, while not a primary concern for heavy-duty truck buyers, was respectable for a vehicle of this size and capability. Reliability was also a strong point, with the Cummins engine being known for its longevity.
Legacy
The 6.7L Cummins engine, particularly in its HO configuration, has become a legend in the diesel truck world. These engines are known to last for hundreds of thousands of miles with proper maintenance. On the used car market, RAM 3500s from this era continue to hold their value, particularly those equipped with the Cummins engine and automatic transmission. They remain a popular choice for those needing a capable and reliable work truck or tow vehicle. The combination of power, durability, and comfort has cemented this variant’s place as a benchmark in the heavy-duty pickup truck segment.
