The Ford F-350 Super Duty III Super Cab Long Box, equipped with the 6.7-liter V8 Power Stroke Turbo Diesel engine producing 400 horsepower, represents a significant iteration in Ford’s long-running line of heavy-duty pickup trucks. Produced from 2011 to 2016, this variant occupied a crucial position within the F-350 range, catering to buyers needing substantial towing and hauling capacity without stepping up to the even more robust F-450. This particular configuration – the Super Cab (extended cab), long bed, 4×4 drivetrain, and six-speed automatic transmission – was a popular choice for commercial users, ranchers, and individuals requiring a versatile and powerful work truck.
Technical Specifications
| Brand | Ford |
| Model | F-350 Super Duty |
| Generation | F-350 Super Duty III Super Cab Long box |
| Type (Engine) | 6.7 V8 Power Stroke TD (400 Hp) 4×4 Automatic DRW |
| Start of production | 2011 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 5 |
| Doors | 2 |
| Fuel Type | Diesel |
| Power | 400 Hp @ 2800 rpm |
| Power per litre | 60.1 Hp/l |
| Torque | 1085 Nm @ 1600 rpm / 800.25 lb.-ft. @ 1600 rpm |
| Engine layout | Front, Longitudinal |
| Engine displacement | 6653 cm3 / 405.99 cu. in. |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 99.06 mm / 3.9 in. |
| Piston Stroke | 107.95 mm / 4.25 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 | 12.4 l / 13.1 US qt | 10.91 UK qt |
| Coolant | 27.8 l / 29.38 US qt | 24.46 UK qt |
| Trunk (boot) space – maximum | 2189 l / 77.3 cu. ft. |
| Fuel tank capacity | 142 l / 37.51 US gal | 31.24 UK gal |
| Permitted trailer load with brakes (12%) | 6804 kg / 15000.25 lbs. |
| Length | 6314 mm / 248.58 in. |
| Width | 2438 mm / 95.98 in. |
| Width with mirrors folded | 2664 mm / 104.88 in. |
| Width including mirrors | 2794 mm / 110 in. |
| Height | 2024 mm / 79.69 in. |
| Wheelbase | 4013 mm / 157.99 in. |
| Front overhang | 968 mm / 38.11 in. |
| Rear overhang | 1331 mm / 52.4 in. |
| Ride height (ground clearance) | 203 mm / 7.99 in. |
| Approach angle | 20.6° |
| Departure angle | 18.7° |
| Ramp-over (brakeover) angle | 18.6° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, automatic transmission TorqShift |
| Front suspension | Dependent spring suspension with anti-roll bar |
| Rear suspension | Rigid axle suspension, Transverse stabilizer, Leaf spring |
| Front brakes | Ventilated discs, 346.96 mm |
| Rear brakes | Ventilated discs, 340.11 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Power steering | Hydraulic Steering |
| Tires size | 245/75 R17 |
Powertrain & Engine Architecture
The heart of this F-350 variant is the 6.7-liter Power Stroke V8 diesel engine. This engine, introduced in 2011, represented a significant upgrade over the previous 6.4-liter Power Stroke. It utilizes a cast iron block and aluminum cylinder heads, featuring a single turbocharger with a variable geometry turbine (VGT) for improved responsiveness and efficiency. The engine employs a high-pressure common rail fuel injection system, delivering fuel at over 30,000 psi for optimized combustion. The overhead valve (OHV) configuration, while traditional, proved durable and reliable. The six-speed TorqShift automatic transmission, a heavy-duty unit designed to handle the engine’s substantial torque output, features a wide gear ratio spread for both towing and fuel economy.
Driving Characteristics
The 400 horsepower and 800 lb-ft of torque delivered by the 6.7L Power Stroke in this F-350 configuration provided ample power for demanding tasks. While not as quick as lighter-duty pickups, the F-350 offered impressive acceleration, even when heavily loaded. The TorqShift transmission’s gear ratios were well-suited for towing, providing smooth and confident shifts. Compared to the gasoline-powered F-350 models, the diesel offered significantly more low-end torque, making it ideal for hauling heavy trailers or navigating challenging terrain. The automatic transmission, while convenient, did result in a slight performance deficit compared to the available manual transmission options, which allowed for more direct control over gear selection.
Equipment & Trim Levels
The F-350 Super Duty III Super Cab Long Box 6.7L Diesel typically came standard with features like air conditioning, power windows and locks, a basic audio system, and vinyl upholstery. The Super Cab configuration offered a second row of seating, increasing passenger capacity. Popular optional extras included leather upholstery, a premium sound system, navigation, a rearview camera, and various towing packages. Trim levels, such as XL, XLT, and Lariat, offered progressively more luxurious features and appointments. The XLT trim was a common choice, striking a balance between affordability and comfort.
Chassis & Braking
The F-350 Super Duty chassis is built around a robust fully boxed frame, designed to withstand heavy loads and demanding use. The front suspension utilizes a solid axle with coil springs and stabilizer bar, while the rear suspension employs a leaf spring setup with a transverse stabilizer bar. This configuration prioritized load-carrying capacity and durability over ride comfort. Braking duties were handled by ventilated disc brakes on all four wheels, providing adequate stopping power even with heavy loads. An Anti-lock Braking System (ABS) was standard equipment.
Market Reception & Comparison
The 2011-2016 Ford F-350 Super Duty with the 6.7L Power Stroke diesel received generally positive reviews. Critics praised its powerful engine, robust construction, and impressive towing capacity. Fuel economy, while not exceptional, was considered reasonable for a heavy-duty pickup. Compared to the gasoline-powered F-350 models, the diesel offered superior torque and fuel efficiency when towing. Compared to the higher-output versions of the 6.7L Power Stroke (available in the F-450), this variant offered a more accessible price point and was often preferred by buyers who didn’t require the absolute maximum towing capacity.
Legacy
The 6.7-liter Power Stroke diesel engine proved to be a durable and reliable powerplant, and examples of this F-350 variant continue to be popular on the used car market. While early versions of the 6.7L Power Stroke experienced some issues with the turbocharger and fuel injection system, these were largely addressed through Ford’s service bulletins and recalls. Properly maintained examples of this truck can provide many years of reliable service. The F-350 Super Duty III Super Cab Long Box 6.7L Diesel remains a capable and versatile work truck, valued for its power, durability, and towing capacity.
