The 2021 6.7 Powerstroke sets a high bar for towing performance and refined efficiency in a diesel half-ton. With its advanced powertrain calibration, the model emphasizes payload capability, highway range, and driver confidence in demanding conditions.
Below is a detailed technical snapshot of the 2021 6.7 Powerstroke, highlighting critical performance metrics and real-world usability figures.
| Category | Metric | Value | Notes |
|---|---|---|---|
| Engine | Configuration | 7.3L V8 Turbo Diesel | Solid-iron block, compacted graphite iron (CGI) cylinder liners |
| Power | Peak Horsepower | 475 hp @ 3,250 rpm | Delivered across a broad mid-range for towing and hauling |
| Torque | Peak Torque | 1,050 lb-ft @ 1,800 rpm | Strong low-end pull for payload and trailer control |
| Drivetrain | Drivetrain | 4WD | Auto transfer case with three modes: Auto, 4WD, 2WD |
| Fuel | Fuel Tank | 26.0 gal (98.4 L) | Extended range supports long-haul capability |
Towing and Payload Capabilities
Maximum Towing and Trailering Performance
The 2021 6.7 Powerstroke is engineered for serious trailering duties, pairing the robust diesel with an optimized transmission and rear axle options. Ford rates maximum conventional trailer tow at 24,200 lb when properly equipped, with a gooseneck/ fifth-wheel rating of 37,000 lb. These figures assume correct hitch setup, axle ratios, and payload management.
Curb Weight and Payload Capacity
Handling capability is closely tied to curb weight and available payload. The F-350 Super Duty variants with the 6.7 Powerstroke deliver a best-in-class payload range between 4,270 lb and 4,580 lb depending on cab configuration and bed length. Curb weight typically sits around 7,500 lb for the standard-bed 4WD model, influencing tongue weight limits and total capacity planning.
Fuel Efficiency and Driving Range
Real-World MPG and Economy
Thanks to the high compression ratio and advanced after-treatment, the 2021 6.7 Powerstroke balances power with reasonable fuel economy. EPA-estimated figures are 19 city / 26 highway MPG for the standard rear-wheel-drive setup, with 4WD models near 18 city / 25 highway MPG. Many drivers report highway numbers in the low to mid-20s, and loaded trucks still achieving respectable mid-teens in mixed use.
Extended Range on a Full Tank
The combination of a large fuel tank and efficient powertrain translates into strong real-world range. With 26.0 gallons available, drivers commonly see 500 to 600 miles between fill-ups when highway driving. Range is influenced by trailer weight, tire rolling resistance, and driving style, but the truck is designed for long-haul endurance.
Technology and Driver Assistance
Infotainment, Connectivity, and Safety Systems
The 2021 6.7 Powerstroke benefits from Ford’s latest cabin technology, including SYNC 3 with over-the-air capability and support for Apple CarPlay and Android Auto. Upgraded safety suites offer enhanced blind-spot monitoring, lane-keeping assist, and trailer sway control. These systems work together to simplify towing tasks and improve overall confidence on the road.
Reliability, Maintenance, and Ownership Costs
Durability, Service Intervals, and Common Considerations
Ford positions the 6.7 Powerstroke as a long-life workhorse, with many components shared across Super Duty models. Recommended service intervals are typically every 10,000 miles or 12 months, using high-pressure common-rail fuel system compatible with low-sulfur diesel. Owners often highlight strong resale value and component longevity, while noting that larger fuel tanks and towing packages can influence insurance and maintenance costs.
Key Takeaways and Recommendations
- Strong low-end diesel torque and a responsive transmission deliver confident towing and hauling.
- Plan around payload and tongue weight limits to maximize trailer capacity safely.
- Use the 4WD system strategically for work sites and adverse weather without compromising fuel efficiency.
- Schedule regular maintenance with correct diesel formulations to preserve durability and resale value.
FAQ
Reader questions
What is the maximum conventional trailer weight the 2021 6.7 Powerstroke can tow?
When properly equipped, the truck can tow up to 24,200 lb of conventional trailer weight, assuming appropriate axle ratio, hitch capacity, and payload distribution.
What is the peak towing-derived payload available with a loaded trailer?
Payload capacity ranges from approximately 4,270 lb to 4,580 lb depending on configuration, allowing substantial cargo alongside a mid-tenthousand-pound trailer tongue weight.
How does fuel economy perform when towing a heavy trailer on the highway?
While towing, real-world fuel economy typically drops into the mid-teens MPG, though the large tank and efficient engine help maintain over 500 miles of range between fill-ups under moderate loads.
What driver assistance features specifically support towing with the 2021 6.7 Powerstroke?
Key features include trailer sway control, integrated brake controllers, enhanced blind-spot monitoring, and lane-keeping assist, all designed to improve stability and awareness when hauling heavy loads.