The RAM 2500/3500 Regular Cab I, specifically the 2500 model equipped with the 5.7 Hemi V8 engine and a four-wheel drive automatic transmission, represents a significant offering in the American heavy-duty pickup truck market. Produced from 2010 through 2012, this configuration occupied a middle ground within the RAM lineup, providing a balance between capability, comfort, and affordability. It was part of the second generation of the redesigned RAM heavy-duty trucks, known internally as the D/W series, and built upon a robust fully boxed frame. This variant aimed to appeal to buyers needing substantial towing and hauling capacity without the expense of the higher-trim levels or the more powerful Cummins diesel engine options.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Regular Cab I |
| Type (Engine) | 2500 5.7 Hemi V8 (383 Hp) 4×4 Automatic |
| Start of production | 2010 |
| End of production | 2012 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 2-3 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7.3 kg/Hp, 137.3 Hp/tonne |
| Weight-to-torque ratio | 5.1 kg/Nm, 194.3 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 | 9.6:1 |
| 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 | 17.7 l, 18.7 US qt | 15.57 UK qt |
| Kerb Weight | 2790 kg, 6150.9 lbs |
| Max. weight | 3992 kg, 8800.85 lbs |
| Max load | 1202 kg, 2649.96 lbs |
| Trunk (boot) space – maximum | 2115 l, 74.69 cu. ft |
| Fuel tank capacity | 132 l, 34.87 US gal | 29.04 UK gal |
| Permitted trailer load with brakes (12%) | 4014 kg, 8849.36 lbs |
| Length | 5867 mm, 230.98 in |
| Width including mirrors | 2004 mm, 78.9 in |
| Height | 1923 mm, 75.71 in |
| Wheelbase | 3556 mm, 140 in |
| Front track | 1735 mm, 68.31 in |
| Rear (Back) track | 1925 mm, 75.79 in |
| Minimum turning circle (turning diameter) | 12.6 m, 41.34 ft |
| Approach angle | 18.1° |
| Departure angle | 27.6° |
| Ramp-over (brakeover) angle | 16.9° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 5 gears, automatic transmission |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Leaf spring |
| Front brakes | Disc |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Tires size | 245/70 R17 E; 265/70 R17 E |
| Wheel rims size | 7.5J x 17; 8.0J x 17 |
Introduction
The 2010-2012 RAM 2500/3500 Regular Cab I with the 5.7L Hemi V8 and automatic transmission was a workhorse designed for the American market. It slotted into the RAM heavy-duty lineup below the more expensive and powerful Cummins diesel options, offering a gasoline-powered alternative for those who didn’t require the ultimate in towing capacity or preferred the lower initial cost. The “Regular Cab I” designation refers to the body style – a two-door, bench-seat configuration – and the first iteration of this generation’s design. This truck was built on the 1HX0 platform, shared with the Dodge 3500, and aimed at buyers needing a robust pickup for work or recreational purposes.
Powertrain & Engine Architecture
At the heart of this RAM 2500/3500 variant lies the EZC engine code 5.7-liter Hemi V8. This engine is a naturally aspirated, 90-degree V8 featuring multi-port fuel injection. The Hemi designation refers to the hemispherical combustion chambers, a design choice intended to improve airflow and efficiency. The engine produces 383 horsepower at 5600 rpm and 400 lb-ft of torque at 4000 rpm. The 545RFE five-speed automatic transmission was the sole transmission option for this configuration. This transmission is known for its durability and smooth shifting, although it lacks the fuel efficiency of more modern transmissions. The transmission features electronic range selection and tow/haul mode, optimizing shift points for heavier loads. The engine’s architecture is a traditional overhead valve (OHV) design with two valves per cylinder, controlled by a single camshaft.
Driving Characteristics
The 5.7L Hemi-powered RAM 2500/3500 offered a noticeable step up in performance compared to earlier generations, but it wasn’t a sports truck. Acceleration was adequate for everyday driving, but hauling heavy loads or towing significantly impacted responsiveness. The 545RFE automatic transmission provided smooth shifts, but the relatively wide gear ratios meant the engine often operated at higher rpm during highway cruising. Compared to the Cummins diesel variants, this 5.7L Hemi offered less low-end torque, making it less ideal for extremely heavy towing. However, it provided a quieter and smoother driving experience, and the lower initial cost was a significant advantage for many buyers. The 4×4 system provided good traction in various conditions, making it suitable for both on-road and off-road use.
Equipment & Trim Levels
The RAM 2500/3500 Regular Cab I with the 5.7 Hemi typically came standard with basic features such as air conditioning, a CD player, and vinyl upholstery. Higher trim levels, like the SLT and Laramie, added features like power windows and locks, keyless entry, upgraded audio systems, and cloth or leather upholstery. Optional extras included a trailer brake controller, a navigation system, and various appearance packages. The interior was functional and durable, designed to withstand the rigors of work truck use. The standard bench seat could accommodate up to three passengers, although space was limited. The dashboard layout was straightforward and easy to use, with large, clearly marked controls.
Chassis & Braking
The RAM 2500/3500 featured a robust fully boxed frame designed for heavy-duty use. The front suspension utilized an independent multi-link setup, providing a relatively comfortable ride for a heavy-duty truck. The rear suspension employed leaf springs, which were well-suited for carrying heavy loads. 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 provided good stopping power, even when towing. The 2500 model typically came with 17-inch wheels, while the 3500 model often featured larger wheels and tires for increased load capacity.
Market Reception & Comparison
Critics generally praised the RAM 2500/3500 for its comfortable ride, spacious interior, and robust construction. The 5.7L Hemi engine was considered a capable performer, but it wasn’t as fuel-efficient as some of its competitors. Compared to the Cummins diesel variants, the Hemi offered lower fuel economy but a lower purchase price. The Hemi-powered RAM 2500/3500 was often seen as a good value for buyers who didn’t need the ultimate in towing capacity or fuel efficiency. It competed primarily with the Ford F-250/F-350 and Chevrolet Silverado 2500/3500, both of which offered similar gasoline and diesel engine options.
Legacy
The 5.7L Hemi V8 and 545RFE automatic transmission combination proved to be a relatively reliable powertrain. While not without its quirks, the engine is known for its durability and relatively low maintenance costs. Today, these trucks can be found in the used car market at affordable prices. They remain popular among those seeking a capable and affordable heavy-duty pickup. Common issues include oil leaks and sensor failures, but these are generally not major concerns. The RAM 2500/3500 Regular Cab I with the 5.7 Hemi continues to be a viable option for those needing a workhorse truck that can handle a variety of tasks.
