The Ford F-350 Super Duty III, specifically the Regular Cab Long Box configuration powered by the 6.7-liter V8 Power Stroke Turbo Diesel engine producing 400 horsepower and paired with a 6-speed automatic transmission, was a mainstay of Ford’s heavy-duty truck lineup from 2011 to 2016. This variant occupied a significant position within the F-350 range, appealing to buyers needing substantial towing and hauling capacity without opting for the more luxurious trims. It represented a balance between capability and cost, making it a popular choice for commercial users, farmers, and those requiring a robust work truck.
Technical Specifications
| Brand | Ford |
| Model | F-350 Super Duty |
| Generation | F-350 Super Duty III Regular Cab Long box |
| Type (Engine) | 6.7 V8 Power Stroke TD (400 Hp) 4×4 Automatic SRW |
| Start of production | 2011 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 3 |
| Doors | 2 |
| Fuel Type | Diesel |
| Weight-to-power ratio | 7.2 kg/Hp, 138.6 Hp/tonne |
| Weight-to-torque ratio | 2.7 kg/Nm, 376.1 Nm/tonne |
| 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) |
| Kerb Weight | 2885 kg (6360.34 lbs.) |
| Max. weight | 5126 kg (11300.9 lbs.) |
| Max load | 2241 kg (4940.56 lbs.) |
| Trunk (boot) space – maximum | 2189 l (77.3 cu. ft.) |
| Fuel tank capacity | 98 l (25.89 US gal | 21.56 UK gal) |
| Permitted trailer load with brakes (12%) | 5670 kg (12500.21 lbs.) |
| Length | 5781 mm (227.6 in.) |
| Width | 2029 mm (79.88 in.) |
| Width with mirrors folded | 2664 mm (104.88 in.) |
| Width including mirrors | 2794 mm (110 in.) |
| Height | 2032 mm (80 in.) |
| Wheelbase | 3480 mm (137.01 in.) |
| Front overhang | 968 mm (38.11 in.) |
| Rear overhang | 1331 mm (52.4 in.) |
| Ride height (ground clearance) | 208 mm (8.19 in.) |
| Approach angle | 18.8° |
| Departure angle | 21.5° |
| Ramp-over (brakeover) angle | 21.5° |
| 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, 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 | 265/70 R17; 275/65 R18; 275/70 R18 |
Powertrain & Engine Architecture
At the heart of this F-350 variant lies the 6.7-liter Power Stroke V8 diesel engine. This engine, designated with various internal codes throughout its production run, represents a significant advancement in Ford’s diesel technology. It features a cast iron block and aluminum cylinder heads, contributing to its durability and relatively lighter weight. The engine utilizes a common-rail direct fuel injection system, delivering fuel at extremely high pressures for optimized combustion and reduced emissions. A variable geometry turbocharger (VGT) with an intercooler further enhances performance and efficiency. The OHV valvetrain, while traditional, is robust and well-suited to the demands of heavy-duty operation. The 6-speed TorqShift automatic transmission, a heavy-duty unit designed to handle the engine’s substantial torque output, provides smooth and reliable shifting. This transmission features a tow/haul mode, optimizing shift points for towing and hauling applications.
Driving Characteristics
The 400 horsepower and 800 lb-ft of torque delivered by this powertrain configuration provided substantial performance for a heavy-duty truck. While not as quick as lighter-duty pickups or those equipped with higher-output engines, the F-350 6.7L Power Stroke offered ample power for towing large trailers, hauling heavy loads, and navigating challenging terrain. The automatic transmission, while generally smooth, could sometimes feel hesitant during downshifts, particularly when heavily loaded. Compared to the manual transmission options, the automatic prioritized ease of use over outright performance. The gear ratios were optimized for towing, resulting in a lower final drive ratio and a focus on maximizing torque at lower engine speeds. This made it an excellent choice for those who frequently tow or haul, but it did slightly compromise fuel economy compared to trims with different gearing.
Equipment & Trim Levels
The F-350 Super Duty III Regular Cab Long Box 6.7L Power Stroke typically came standard with features geared towards work and utility. This included a heavy-duty vinyl interior, air conditioning, a basic audio system, and power windows and locks. Optional extras included upgraded audio systems, power-adjustable seats, a trailer brake controller, and various appearance packages. The Regular Cab configuration prioritized functionality over luxury, offering a spacious interior focused on durability and ease of cleaning. The Long Box provided ample cargo space for tools, equipment, or other materials.
Chassis & Braking
The chassis of the F-350 Super Duty was designed for heavy-duty use, featuring a robust frame and heavy-duty suspension components. The front suspension utilized a dependent spring setup with an anti-roll bar, while the rear suspension employed a rigid axle with leaf springs. This configuration provided excellent load-carrying capacity and stability. Braking duties were handled by ventilated disc brakes on all four wheels, providing ample stopping power even when heavily loaded. An Anti-lock Braking System (ABS) was standard, enhancing safety and control. The hydraulic power steering provided responsive and precise steering feel.
Market Reception & Comparison
The F-350 Super Duty with the 6.7L Power Stroke and automatic transmission received generally positive reviews. Critics praised its robust powertrain, impressive towing and hauling capabilities, and comfortable ride quality. However, some noted the relatively high price compared to competitors and the potential for diesel-related maintenance costs. Compared to the gasoline-powered F-350 models, the diesel offered significantly more torque and better fuel economy when towing. Compared to higher-trim F-350s, this variant offered a more affordable entry point into the heavy-duty truck market, sacrificing some luxury features for practicality and value.
Legacy
The 6.7-liter Power Stroke engine has proven to be a durable and reliable powertrain, with many examples exceeding 200,000 miles with proper maintenance. The F-350 Super Duty from this era remains a popular choice in the used truck market, particularly among those seeking a capable and affordable work truck. While diesel engines generally require more specialized maintenance than gasoline engines, the 6.7L Power Stroke has earned a reputation for longevity and relatively straightforward repairs. The combination of power, capability, and value has cemented its place as a significant truck in Ford’s history.
