Used 2021 Ford F-350 Super Duty for SaleNationwide

How much does the 2021 Ford F-350 Super Duty cost?

Prices have softened 3.23% compared to this time last year, making it a favorable time to shop this model year.

There are 1,694 listings available, which suggests solid inventory for a heavy-duty truck shopper.

If you find a listing below $48,771.67, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2021 Ford F-350 Super Duty a good car?

Generally — the 4.44/5 user rating and 7.67/10 expert rating point to a truck that delivers strongly where it matters most. The model scores 9/10 across Look and feel and Form and function.

Owners consistently praise its robust performance, spacious interior, and the amount of features you get for the price. The feedback also points to useful fuel efficiency on long trips, which helps offset some of the truck’s size and capability-focused mission.

The trade-offs are clear: poor ride quality, poor handling, and noise are part of the package. That makes the F-350 best suited to you if you need serious towing and hauling capability, multiple body styles, and a broad equipment range rather than a refined daily driver.

With 25.9% of listings marked as good or great deals, there is still room to shop selectively.

Is the 2021 Ford F-350 Super Duty reliable?

Owners rate it 4.44/5, a solid signal of long-term satisfaction.

The owner feedback also points to a truck that feels robust, dependable, and well suited to long-term use, especially when you value strength and capability over polish. In expert testing, the diesel powertrain and 10-speed automatic were described as delivering on their promise, which reinforces the sense that the truck is built to handle hard work consistently.

For used buyers, the main long-term ownership risk is less about whether the truck can do the job and more about how previous use, maintenance, and towing demands may have affected it.

What should I look for when buying a used 2021 Ford F-350 Super Duty?

Accident-free inventory is solid at 80.9% — always verify the vehicle history report.

You should still check the history report carefully, because heavy-duty trucks are often used hard and may have seen towing, hauling, or fleet duty. A thorough pre-purchase inspection matters here, especially for signs of wear in the suspension, brakes, steering, and bed area. Focus on overall condition and how the truck was used, not just mileage.

Key things to evaluate:

• Trim level: The F-350 ranges from work-focused XL and XLT models to more upscale Lariat, King Ranch, Platinum, and Limited trims. The cabin gets more luxurious as you move up, and the Limited adds premium touches such as higher-end materials, a panoramic glass sunroof, and the available turbodiesel V8 with 4WD.
• Powertrain: You can shop multiple powertrain options, including the optional turbo-diesel V8 that delivers massive torque and strong towing performance. The diesel is the standout choice if your priority is serious hauling.
• Safety package: Available driver-assistance systems include adaptive cruise control, forward-collision warning, automatic emergency braking, lane-departure warning, lane-keep assist, blind-spot monitoring with trailer coverage, and rear cross-traffic alert. Some features are available rather than standard, so check the exact equipment on the truck you’re considering.
• Infotainment: The truck uses an 8-inch touchscreen with Sync 3. Wireless smartphone charging, navigation, FordPass Connect services with a 4G LTE WiFi hotspot, and a B&O premium sound system are available on higher trims.
• Fuel efficiency: The diesel test truck averaged 15.4 mpg in testing and 16.5 mpg over a full week of driving.

Which 2021 Ford F-350 Super Duty trim should I buy?

The 2021 Ford F-350 Super Duty is offered in 6 trim levels: XL, XLT, Lariat, King Ranch, Platinum, Limited.

Here's the short version:

• XL: This is the work-first choice if you want the lowest entry point and plan to prioritize capability over comfort. It makes the most sense for fleet use or buyers who need the truck’s core towing and hauling strength without paying for luxury extras.
• XLT: This is the best-value trim for many shoppers because it adds more everyday usability while staying closer to the truck’s practical roots. If you want a balanced mix of equipment and price, this is the trim to start with.
• Lariat: This is the step up if you want a more comfortable cabin and more of the features that make the F-350 easier to live with. It suits you if the truck will spend time as both a work tool and a daily driver.
• King Ranch: This trim is where the cabin starts moving into higher-end territory, with more upscale décor and a stronger luxury-truck feel. Choose it if you want the F-350’s capability with a more distinctive interior presentation.
• Platinum: This is the better fit if you want a premium-feeling heavy-duty truck with a more polished look and feel. It’s aimed at buyers who want capability without giving up upscale appointments.
• Limited: This is the top-end choice, and it’s the one to buy if you want the most luxurious version of the F-350. It includes the available turbodiesel V8 and 4WD, plus the richest interior treatment and the most complete feature set.

Adaptive steering is standard on Limited and optional on other trims except XL and XLT.

Is now a good time to buy a used 2021 Ford F-350 Super Duty?

This looks like a moderate, selective buyer’s market, so you can shop with some leverage if you know what you want.

• Deal availability: 25.9% of listings are priced as good or great deals.
• Inventory: There are 1,694 listings available.
• Price trend: Prices have softened 3.23% compared with last year.
• Clean inventory: 80.9% of listings are accident-free.

If you find a listing below $48,771.67, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 Ford F-350 Super Duty's resale value?

The current average of $49,330 sits slightly below last year's $50,977.

That kind of price movement suggests the truck has softened enough to help you buy more carefully now, while still retaining meaningful value in a segment where capability matters. For a future seller, the key takeaway is that strong demand for heavy-duty trucks can support resale, but condition and equipment will matter a lot.

Because this model year still attracts buyers looking for serious towing and hauling ability, well-kept examples should remain easier to move than trucks with unclear history or heavy wear. Higher-trim trucks and well-equipped diesel models may also hold attention better if they are clean and properly maintained.

Vehicles with solid owner satisfaction ratings, like this model year's 4.44/5, tend to retain buyer demand, which supports resale value over time.

Is the 2021 Ford F-350 Super Duty safe?

It earns a 7/10 safety score from our experts.

The truck comes with available driver-assistance systems including adaptive cruise control, forward-collision warning, automatic emergency braking, lane-departure warning, lane-keep assist, blind-spot monitoring with trailer coverage, and rear cross-traffic alert. The test truck’s adaptive cruise control did not bring the truck to a full stop, so you should not treat it as a substitute for attentive driving.

The safety picture is also shaped by the truck’s size and weight, which can help in some collisions but also makes careful driving especially important. Blind-spot monitoring is helpful, but you still need to set the mirrors correctly because smaller vehicles can disappear from view.

Should I buy a 2021 Ford F-350 Super Duty or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 25.9% of listings are priced as good or great deals.
• Accident-free inventory is solid at 80.9% — always verify the vehicle history report.
• Price trend: Prices have softened 3.23% compared with last year.
• Owners rate it 4.44/5 — a solid satisfaction signal.
• One year after a refresh, it continues to benefit from powertrain, technology, design, and capability changes.

Consider the 2020 if:

• At $45,343, the 2020 costs less than the current year's $49,330 average.
• It offers a wide variety of trims for buyers who want flexibility across work and family use.

The bottom line: If you want the stronger current-market balance of features, satisfaction, and softened pricing, the 2021 is the better default choice. If your priority is spending less up front and you still want the F-350’s core capability, the 2020 is the more budget-friendly path.

These recommendations are based on CarGurus' proprietary market data from August 28, 2026, CarGurus experts' opinions, and generative AI.