2021 Ford F-350 SD Problems, Complaints & Recalls

Source: NHTSA · Updated Oct 7, 2026 · 98 owner complaints analyzed

Compared with other F-350 SD years
About as many complaints as other years 17th of 32 for complaints
NHTSA crash rating
Not rated

Owners have filed 98 complaints with NHTSA about the 2021 Ford F-350 SD. That ranks 17th out of 32 F-350 SD model years for complaints. The most reported problem area is fuel system, diesel (24 complaints, 24%), typically at around 110,000 miles. Complaints mention 1 crash, 4 fires, 3 injuries. There are 14 safety recalls covering this model year. NHTSA has opened 1 defect investigation involving it.

Complaints are unverified owner reports and are not adjusted for sales volume.

Compare with another car

Most common 2021 Ford F-350 SD problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Fuel System, Diesel24 · ~110,000 mi
Engine15 · ~85,000 mi
Fuel/propulsion System15
Electrical System13 · ~121,100 mi
Power Train10 · ~89 mi
Unknown or Other10
Back Over Prevention5 · ~119,500 mi
Suspension5 · ~37,000 mi
Latches/locks/linkages4 · ~32,500 mi
Service Brakes4 · ~40,500 mi
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Fuel System, Diesel2424%110,000——
Engine1515%85,000——
Fuel/propulsion System1515%———
Electrical System1313%121,100——
Power Train1010%89——
Unknown or Other1010%———
Back Over Prevention55%119,500——
Suspension55%37,000——
Latches/locks/linkages44%32,500——
Service Brakes44%40,500——
Steering44%89——
Visibility44%14,119——
Visibility/wiper44%16,000——
Structure33%23,000——
Vehicle Speed Control33%———
Lane Departure22%———
Engine and Engine Cooling11%92,567——
Equipment11%———
Fuel System, Gasoline11%129,000——
Seats11%6,600——
Tires11%34,000——

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2025, with 37 complaints
2021: 9202192022: 162022162023: 9202392024: 112024112025: 372025372026: 16202616

n = 98 complaints · Source: NHTSA

2021 Ford F-350 SD recalls (14)

Tap a recall to see the problem, the risk and the fix.

Fuel system, diesel:delivery:fuel pumpMar 17, 2026 · NHTSA campaign 26V158000 · 9,839 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2020-2022 F-Super Duty F250, F350, F450, F550, 2021-2022 F600, and 2022 F750 vehicles previously repaired incorrectly under recall number 24V957. Biodiesel deposits may form on the pump drivetrain roller components, which could lead to failure of the high pressure fuel pump.

Risk: High pressure fuel pump failure can cause a loss of drive power, increasing the risk of a crash.

Fix: Dealers will update the powertrain control module (PCM) software, free of charge. Owner notification letters were mailed mailed April 7, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 26S17. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on March 18, 2026.

Back over prevention:softwareOct 10, 2025 · NHTSA campaign 25V686000 · 291,901 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2020-2022 F-250 SD, F-350 SD, and F-450 SD vehicles. The 360-degree view camera system may not display a rearview image properly in certain lighting conditions.

Risk: A rearview camera image that does not display properly can reduce the driver’s view behind the vehicle, increasing the risk of a crash.

Fix: Dealers will update the image processing module software, free of charge.This will be a phased campaign, with the remedy becoming available in different phases based on model years. Interim letters notifying owners of the safety risk were mailed on October 30, 2025. Additional letters will be mailed once the remedy is available on each phase. Owner notification letters were mailed May 19, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25SA8. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on October 13, 2025.

Steering:columnSep 19, 2025 · NHTSA campaign 25V626000 · 115,539 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2020-2021 F-250, F-350, and F-450 vehicles. The steering column upper shaft may detach from the steering column and result in a loss of steering control.

Risk: A loss of steering control increases the risk of a crash.

Fix: Dealers will inspect the steering column, and repair or replace the upper shaft as necessary, free of charge. Owner notification letters were mailed February 20, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S94. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning September 23, 2025.

Fuel system, gasoline:delivery:fuel pumpJul 7, 2025 · NHTSA campaign 25V455000 · 850,318 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2021-2023 Bronco, Explorer, Lincoln Aviator, F-250 SD, F-350 SD, F-450 SD, F-550 SD, 2021-2022 Lincoln Navigator, Mustang, F-150, and 2022 Expedition vehicles. The low-pressure fuel pump may fail, which can result in an engine stall while driving.

Risk: An engine stall increases the risk of a crash.

Fix: Dealers will replace the low pressure fuel pump on super duty vehicles and update the powertrain control module (PCM) software on all other affected vehicles, free of charge. Owner notification letters were mailed July 27, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S75.

Back over prevention: sensing system: cameraJan 31, 2025 · NHTSA campaign 25V048000 · 91,580 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2021 Expedition, 2021-2022 Super Duty F-250, F-350, F-450, F-550, F-600, and 2020-2022 Lincoln Corsair vehicles. The rearview camera may display a blank or distorted image.

Risk: Rearview camera failure can reduce the driver's view of what is behind the vehicle, increasing the risk of a crash.

Fix: Dealers will replace the rearview camera as necessary, free of charge. Owner notification letters were mailed September 18, 2025. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S05.

Fuel system, diesel:delivery:fuel pumpDec 20, 2024 · NHTSA campaign 24V957000 · 295,449 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2020-2022 F-Super Duty F250, F350, F450, F550, F600, and 2021-2022 F-650, F750 vehicles. Biodiesel deposits may form on the pump drivetrain roller components, which could lead to failure of the high pressure fuel pump.

Risk: High pressure fuel pump failure can cause a loss of drive power, increasing the risk of a crash.

Fix: Dealers will update the powertrain control module (PCM) and Transmission Control Module (TCM) software, free of charge. Owner notification letters were mailed January 23, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 24S78.

Equipment:other:owners/service/other manualJun 9, 2023 · NHTSA campaign 23V420000 · 691,133 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2018-2023 Expedition and Lincoln Navigator vehicles equipped with third-row seating; and 2019-2023 F-Super Duty F-250, F-350, F-450, and F-550 SuperCab vehicles. The owner's manual does not include instructions for adjusting or removing certain head restraints. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 202, "Head Restraints."

Risk: Without instructions, the head restraints may be improperly adjusted, increasing the risk of injury in the event of a crash.

Fix: Ford will mail the Owner's Manual addendums that describe how to adjust and remove the head restraints for the center seating positions, free of charge. Owner notification letters were mailed July 21, 2023. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 23C20.

Visibility:windshield wiper/washer:linkagesApr 14, 2022 · NHTSA campaign 22V250000 · 652,996 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2020-2021 F-150, Expedition, 2020-2022 Super Duty F-250, F-350, F-450, F-550, and 2020-2021 Lincoln Navigator vehicles. The windshield wiper arms may break, causing the windshield wipers to fail.

Risk: Inoperative windshield wipers can reduce visibility in certain driving conditions, increasing the risk of a crash.

Fix: Dealers will replace both front windshield wiper arms, free of charge. Interim owner notification letters, informing owners of the safety risk, were mailed on May 24, 2022. Remedy parts are expected to be available 3rd Quarter 2022. Owner notification letters were mailed on October 21, 2022. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 22S26.

Structure:frame and members:underbody shields; power train:driveline:driveshaftFeb 16, 2022 · NHTSA campaign 22V087000 · 247,445 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2017-2022 F-250 and F-350 Super Duty vehicles equipped with gasoline engines and aluminum driveshafts. Underbody heat and noise insulators may loosen and contact the aluminum driveshaft, which could damage the driveshaft and cause it to fracture.

Risk: A fractured driveshaft can cause a loss of drive power, or a loss of vehicle control if the driveshaft contacts the ground. Additionally, unintended movement could occur while parked if the parking brake is not engaged. Any of these scenarios can increase the risk of a crash.

Fix: Dealers will inspect and repair the driveshaft as necessary, and properly attach the underbody insulators, free of charge. Owner notification letters were mailed on April 7, 2022. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 22S09.

Fuel system, dieselJan 14, 2022 · NHTSA campaign 22V013000 · 19,697 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2021 Super Duty F-250, F-350, F-450, F-550, F-600, and Medium Duty F-650 and F-750 vehicles equipped with 6.7L diesel engines. A small void may be present in the top-center of the vehicle's underhood secondary fuel filter cap, which may progress to a pinhole over time, allowing fuel to leak from the top of the secondary fuel filter.

Risk: A fuel leak in the presence of an ignition source can increase the risk of a fire or injury.

Fix: Dealers will replace the primary and secondary fuel filters, free of charge. Owner notification letters were mailed January 28, 2022. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 22S01.

Power train:axle assemblyJul 15, 2021 · NHTSA campaign 21V536000 · 27,604 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2020-2021 F-350 Super Duty pickup trucks equipped with 6.7L diesel engines and Dana model 275 rear axles. The rear axle housing may not support the load of the pickup truck and deform, which could result in driveshaft separation.

Risk: Driveshaft separation may result in a loss of drive power, or unintended vehicle movement if the vehicle is in park without the parking brake applied, increasing the risk of a crash.

Fix: Dealers will inspect the axle housing for deformities, and repair or replace the housing, as necessary, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall 21S31.

Power train:axle hubsDo not driveMay 25, 2021 · NHTSA campaign 21V390000 · 17,616 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2021 F-350, F-450, F-550, and F-600 vehicles equipped with dual rear wheels and front wheel hub extenders. The front wheel hub extenders may be improperly attached to the front rotor hub assemblies, which could result in separation of the wheels and wheel extenders from the vehicle.

Risk: A detached wheel and wheel extender can increase the risk of a crash.

Fix: Owners are instructed not to drive their vehicles until the torque of the wheel extender nuts can be verified. Dealers will inspect and tighten the front wheel hub extender nuts, free of charge. Owner notification letters were mailed on June 18, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 21S26.

Trailer hitches:fifth wheel assemblyMay 24, 2021 · NHTSA campaign 21V379000 · 1,796 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2021 Super Duty F-350 and F-450 vehicles equipped with a fifth wheel left-hand mounting bracket that may be cracked.

Risk: A cracked mounting bracket could result in the fifth wheel detaching from the vehicle while towing, increasing the risk of a crash.

Fix: Dealers will inspect the mounting bracket, and replace the bracket if necessary, free of charge. Owner notification letters were mailed on June 16, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 21S23.

Visibility:windshield:critical fastenersFeb 18, 2021 · NHTSA campaign 21V090000 · 79,017 vehicles

Problem: Ford Motor Company (Ford) is recalling certain 2021 F-150 and 2020-2021 F-250, F-350, F-450, and F-550 Super Duty vehicles. During manufacturing, the windshield may not have been properly bonded to the vehicle, allowing it to detach in a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 212, "Windshield Mounting."

Risk: In the event of a crash, if the windshield separates from the vehicle, it can increase the risk of injury.

Fix: Ford will notify owners, and dealers will remove and reinstall the windshield, free of charge. The recall began April 16, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 21C06.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

NHTSA defect investigations

  • Sogefi Secondary Diesel Fuel Filter Leak (PE24014) — opened May 9, 2024, still open.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

Failed Component & Availability for Inspection: The Bosch CP4 high-pressure fuel pump (HPFP) failed internally, shedding metallic debris throughout the entire fuel system. This matches the exact defect in NHTSA Recall 24V-957 and Ford Safety Recalls 24S78 and 26S17. The failing CP4 pump and eight…

Engine · received Oct 7, 2026 · NHTSA complaint 11769485

The contact owns a 2021 Ford F-350 SD. The contact stated that while driving 50 MPH, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The engine seized, and the vehicle was pulled over to the shoulder of the roadway. The contact stated that while…

Fuel System, Diesel · received Oct 2, 2026 · NHTSA complaint 11768516

The high pressure fuel pump failed sending metal shavings through out the entire fuel system. I had no heads up and the failure left me stranded on top of a bridge. I called 911 twice and finally the cops showed up and wrecker towed me off the bridge. Ford is aware of this known issue with this…

Fuel/propulsion System · received Sep 3, 2026 · NHTSA complaint 11761855

The contact owns a 2021 Ford F-350 SD. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The contact stated that while driving 20 MPH, the message "Reduced Power" was displayed, and the check engine warning light was illuminated. The vehicle stalled and…

Fuel System, Diesel · received Aug 19, 2026 · NHTSA complaint 11757987

Vehicle went into limp mode and we towed it to the dealership. They ran diagnostics and found that the fuel filter was causing a fault for water in the fuel filter. They replaced the fuel filter and ran diagnostics again and it flagged failure for Low pressure fuel pump. They replaced the low…

Fuel/propulsion System · received Aug 6, 2026 · NHTSA complaint 11755333

Other Ford F-350 SD years

← 2020 F-350 SD · 2022 F-350 SD →

See all Ford F-350 SD problems by year, every Ford model, or the Ford VIN decoder.

Similar Ford models

Embed this 2021 Ford F-350 SD badge on your site

Copy this code into your blog or forum post. It shows live complaint and recall counts and links back here.

Frequently asked questions

What are the most common problems with the 2021 Ford F-350 SD?

Owners most often report fuel system, diesel, engine, fuel/propulsion system problems. The top one, fuel system, diesel, accounts for 24 complaints.

Was there a recall on the 2021 Ford F-350 SD?

Yes, 14 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2021 Ford F-350 SD a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other F-350 SD model years, the 2021 has about as many complaints as a typical year. Always get a pre-purchase inspection and check the VIN for open recalls.