The RAM 1500 Quad Cab (DS) equipped with the 5.7 Hemi V8 engine and a four-wheel drive (4×4) automatic transmission was a popular configuration produced between 2010 and 2012. This variant represented a sweet spot in the fourth generation (DS) 1500 lineup, offering a substantial increase in power and capability over the base V6 models, while remaining more accessible than the higher-trim level options like the Laramie or Limited. It was positioned as a workhorse truck capable of both demanding tasks and comfortable daily driving, appealing to a broad range of buyers in the North American market.
Technical Specifications
| Brand | RAM |
| Model | 1500 |
| Generation | 1500 Quad Cab (DS) |
| Type (Engine) | 5.7 Hemi V8 (390 Hp) 4×4 Automatic |
| Start of production | 2010 |
| End of production | 2012 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5-6 |
| Doors | 4 |
| Fuel consumption (urban) | 16.7 l/100 km (14.1 US mpg) |
| Fuel consumption (extra urban) | 11.4 l/100 km (20.6 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 6.1 kg/Hp |
| Weight-to-torque ratio | 4.3 kg/Nm |
| Power | 390 Hp @ 5600 rpm |
| Power per litre | 69 Hp/l |
| Torque | 552 Nm @ 4000 rpm (407.13 lb.-ft. @ 4000 rpm) |
| Maximum engine speed | 5800 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EZH |
| 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 |
| Valvetrain | OHV |
| Engine oil capacity | 6.6 l (6.97 US qt | 5.81 UK qt) |
| Coolant | 15 l (15.85 US qt | 13.2 UK qt) |
| Kerb Weight | 2395 kg (5280.07 lbs.) |
| Max. weight | 3039 kg (6699.85 lbs.) |
| Max load | 644 kg (1419.78 lbs.) |
| Trunk (boot) space – maximum | 1628 l (57.49 cu. ft.) |
| Fuel tank capacity | 98 l (25.89 US gal | 21.56 UK gal) |
| Permitted trailer load with brakes (12%) | 3425 kg (7550.83 lbs.) |
| Length | 5816 mm (228.98 in.) |
| Width including mirrors | 2016 mm (79.37 in.) |
| Height | 1922 mm (75.67 in.) |
| Wheelbase | 3569 mm (140.51 in.) |
| Front track | 1732 mm (68.19 in.) |
| Rear (Back) track | 1714 mm (67.48 in.) |
| Drag coefficient (Cd) | 0.36 |
| Minimum turning circle (turning diameter) | 13.8 m (45.28 ft.) |
| Approach angle | 20.5° |
| Departure angle | 25.4° |
| Ramp-over (brakeover) angle | 16.6° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 5 gears, automatic transmission |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Tires size | 265/70 R17 |
| Wheel rims size | 7.0J x 17 |
Powertrain & Engine Architecture
The heart of this RAM 1500 variant is the 5.7-liter HEMI V8 engine, internally designated as the EZH. This engine is a third-generation HEMI, featuring overhead valve (OHV) valvetrain, a cast iron block, and aluminum cylinder heads. It utilizes a multi-point fuel injection system to deliver fuel directly into the intake ports. The 5.7L HEMI is known for its robust construction and relatively simple design, contributing to its reliability. The engine produces 390 horsepower at 5,600 rpm and 407 lb-ft of torque at 4,000 rpm. The automatic transmission paired with this engine is a five-speed unit, designed to handle the engine’s substantial torque output. While not as sophisticated as some newer transmissions, it provides smooth and reliable shifting for everyday use and towing. The 4×4 system is typically a part-time system, allowing the driver to switch between two-wheel drive and four-wheel drive as needed.
Driving Characteristics
The 5.7 Hemi V8, coupled with the five-speed automatic, delivers a noticeable step up in performance compared to the base V6 models. Acceleration is brisk, and the truck feels confident when merging onto highways or passing other vehicles. The automatic transmission is tuned for smooth operation, prioritizing comfort over aggressive shifting. However, it doesn’t offer the responsiveness of a manual transmission or the efficiency of a more modern eight-speed automatic. The gear ratios are optimized for towing and hauling, providing ample low-end torque. The 4×4 system provides enhanced traction in slippery conditions, making it suitable for off-road use and inclement weather. Compared to the higher-output 6.1L HEMI available in some trims, the 5.7L offers a more balanced driving experience, prioritizing usability and fuel economy over outright performance.
Equipment & Trim Levels
The Quad Cab (DS) 5.7 Hemi 4×4 typically came standard with features like air conditioning, power windows and locks, a basic audio system, and cloth upholstery. The “DS” designation indicates a mid-range trim level, offering more features than the base ST model but falling short of the luxury found in the Laramie or Limited trims. Optional extras included a premium sound system, leather upholstery, heated seats, a navigation system, and various towing packages. The interior design is functional and durable, with a focus on practicality rather than lavishness.
Chassis & Braking
The RAM 1500 utilizes a body-on-frame construction, providing a robust and durable platform for heavy-duty use. The front suspension features a double wishbone design, while the rear suspension employs an independent multi-link setup. This combination provides a comfortable ride quality, even when the truck is loaded. Braking duties are handled by ventilated discs at the front and solid discs at the rear. An Anti-lock Braking System (ABS) is standard, enhancing safety and control during emergency braking situations. The truck’s substantial weight necessitates a robust braking system to ensure adequate stopping power.
Market Reception & Comparison
The RAM 1500 Quad Cab 5.7 Hemi 4×4 was well-received by critics and consumers alike. It was praised for its powerful engine, comfortable ride, and spacious interior. Fuel economy, however, was a common criticism, with the 5.7L HEMI returning around 14-20 mpg in real-world driving. Compared to the V6 models, the 5.7 Hemi offered a significant performance upgrade, making it a popular choice for those who needed to tow or haul heavy loads. Compared to the higher-trim level models, it provided a more affordable entry point into the RAM 1500 lineup without sacrificing too much in terms of capability or comfort.
Legacy
The 5.7 Hemi V8 engine has proven to be remarkably reliable, with many examples exceeding 200,000 miles with proper maintenance. The five-speed automatic transmission is also generally considered durable, although it may require servicing at higher mileage. In the used car market, these RAM 1500s remain popular due to their combination of power, capability, and affordability. They are often sought after by those looking for a capable work truck or a comfortable daily driver. Regular maintenance, including oil changes and fluid checks, is crucial to ensuring the long-term reliability of this powertrain.
