The Ford F-350 Super Duty IV, produced from 2017 to 2019, represents the fourth generation of Ford’s heavy-duty pickup truck line. This particular variant, the Super Cab Long Box equipped with a 6.7-liter Power Stroke V8 diesel engine producing 450 horsepower and paired with a TorqShift 6-speed automatic transmission, and a Dual Rear Wheel (DRW) configuration, was positioned as a workhorse for demanding tasks, bridging the gap between the standard F-350 and the even more capable F-450. It catered to owners needing substantial towing and payload capacity without the added expense and complexity of the F-450.
Technical Specifications
| Brand | Ford |
| Model | F-350 Super Duty |
| Generation | F-350 Super Duty IV Super Cab Long box |
| Type (Engine) | 6.7d V8 (450 Hp) 4×4 Automatic DRW |
| Start of production | 2017 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 6 |
| Doors | 2 |
| Fuel Type | Diesel |
| Weight-to-power ratio | 7.5 kg/Hp, 133.2 Hp/tonne |
| Weight-to-torque ratio | 2.7 kg/Nm, 375.1 Nm/tonne |
| Power | 450 Hp @ 2800 rpm |
| Power per litre | 67.6 Hp/l |
| Torque | 1267 Nm @ 1800 rpm (934.49 lb.-ft. @ 1800 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 | 12.3 l (13 US qt | 10.82 UK qt) |
| Coolant | 33.2 l (35.08 US qt | 29.21 UK qt) |
| Kerb Weight | 3378-3567 kg (7447.22 – 7863.89 lbs.) |
| Trunk (boot) space – minimum | 2222 l (78.47 cu. ft.) |
| Fuel tank capacity | 129 l (34.08 US gal | 28.38 UK gal) |
| Permitted trailer load with brakes (12%) | 14333 kg (31598.86 lbs.) |
| Length | 6462 mm (254.41 in.) |
| Width | 2438 mm (95.98 in.) |
| Width including mirrors | 2690 mm (105.91 in.) |
| Height | 2055 mm (80.91 in.) |
| Wheelbase | 4171 mm (164.21 in.) |
| Front track | 1755 mm (69.09 in.) |
| Rear (Back) track | 1897 mm (74.69 in.) |
| Front overhang | 970 mm (38.19 in.) |
| Rear overhang | 1321 mm (52.01 in.) |
| Ride height (ground clearance) | 198 mm (7.8 in.) |
| Approach angle | 18.4° |
| Departure angle | 20.5° |
| Ramp-over (brakeover) angle | 21.8° |
| Drivetrain Architecture | All wheel drive (4×4). ICE drives rear wheels, front wheels engaged via clutch. |
| Number of gears and type of gearbox | 6 gears, automatic transmission TorqShift |
| Front suspension | Dependent spring suspension with anti-roll bar, Trailing arm |
| Rear suspension | Rigid axle suspension, Leaf spring |
| Front brakes | Ventilated discs, 363 mm |
| Rear brakes | Ventilated discs, 363 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 245/75 R17 |
| Wheel rims size | 17 |
Powertrain & Engine Architecture
The heart of this F-350 variant is the 6.7-liter Power Stroke V8 diesel engine. This engine, designated with various internal codes depending on the specific year and calibration, is a turbocharged, intercooled diesel featuring a cast iron block and aluminum cylinder heads. The 6.7L Power Stroke utilizes a high-pressure fuel injection system, common rail technology, and an electronically controlled variable geometry turbocharger (VGT) to optimize performance and efficiency. The overhead valve (OHV) configuration, while traditional, contributes to the engine’s durability and relatively simple maintenance. The TorqShift 6-speed automatic transmission is a heavy-duty unit designed to handle the substantial torque output of the diesel engine. It features a wide gear ratio spread and a robust construction, enabling smooth shifting and efficient power delivery.
Driving Characteristics
The 450 horsepower and 934 lb-ft of torque delivered by this powertrain configuration provide substantial pulling power and acceleration, even when heavily loaded. While not as quick as gasoline-powered trucks, the F-350’s diesel engine offers a broad torque curve, making it exceptionally capable for towing and hauling. The automatic transmission, while generally smooth, can exhibit some hunting for the right gear in certain situations, particularly when navigating hilly terrain. Compared to the 6.2L gasoline V8 option, the diesel provides significantly more torque at lower RPMs, making it ideal for demanding work. Compared to higher-output diesel variants, this 450hp version offers a balance between power and fuel economy, making it a practical choice for those who don’t require the absolute maximum towing capacity.
Equipment & Trim Levels
The F-350 Super Duty IV offered a range of trim levels, with the 6.7L diesel/automatic combination available on most. Standard equipment typically included air conditioning, power windows and locks, a basic audio system, and vinyl upholstery. Higher trim levels, such as Lariat, King Ranch, and Platinum, added features like leather upholstery, heated and ventilated seats, a premium sound system, navigation, and advanced driver-assistance systems. The Super Cab configuration provided additional rear seating and storage space compared to the regular cab models. Optional extras included a fifth-wheel hitch, a gooseneck hitch, and various off-road packages.
Chassis & Braking
The F-350 Super Duty IV features a robust chassis designed to withstand heavy loads. The front suspension utilizes a two-stage leaf spring design with anti-roll bar, while the rear suspension employs leaf springs. The DRW configuration (Dual Rear Wheels) significantly increases stability and load-carrying capacity. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard. The steering system is a hydraulic recirculating ball setup, offering a solid and predictable feel.
Market Reception & Comparison
The 2017-2019 Ford F-350 Super Duty with the 6.7L diesel and automatic transmission was generally well-received by critics and consumers. It was praised for its powerful engine, robust construction, and impressive towing and payload capabilities. Fuel economy, while not exceptional, was considered reasonable for a heavy-duty truck of its size and capability. Compared to the gasoline-powered F-350, the diesel offered superior torque and fuel efficiency when towing. Compared to the higher-output diesel variants, this 450hp version offered a more affordable price point and slightly better fuel economy, making it a popular choice for those who didn’t need the absolute maximum power.
Legacy
The 6.7-liter Power Stroke diesel engine has proven to be a durable and reliable powerplant, with many examples exceeding 200,000 miles with proper maintenance. The TorqShift transmission is also generally considered to be a robust unit. On the used car market, these F-350s hold their value relatively well, particularly those in good condition with well-documented maintenance histories. They remain a popular choice for those seeking a capable and dependable heavy-duty truck for work or recreational purposes. Common maintenance items include regular oil changes, fuel filter replacements, and occasional turbocharger maintenance. Overall, this variant of the F-350 Super Duty represents a solid and capable truck that continues to serve owners well years after its production run ended.
