2021 Ford F-600 SD Problems, Complaints & Recalls

Source: NHTSA · Updated Mar 18, 2026 · 2 owner complaints analyzed

Compared with other F-600 SD years
Not enough data 1st of 7 for complaints
NHTSA crash rating
Not rated

Owners have filed 2 complaints with NHTSA about the 2021 Ford F-600 SD. That is the most of any F-600 SD model year in the database (7 years). The most reported problem area is fuel/propulsion system (1 complaints, 50%). There are 5 safety recalls covering this model year.

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

Compare with another car

Most common 2021 Ford F-600 SD problems

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

Fuel/propulsion System1
Fuel System, Diesel1
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Fuel/propulsion System150%———
Fuel System, Diesel150%———

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

2021 Ford F-600 SD recalls (5)

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: 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.

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 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.

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.

Recent owner reports

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

The contact owns a 2021 Ford F-600 SD. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. The local dealer was contacted, and the contact was advised that the repairs could cause more failures…

Fuel System, Diesel · received Feb 6, 2026 · NHTSA complaint 11716228

I am filing a complaint against Ford Motor Company regarding a known defect in my 2021 Ford F-600 truck that resulted in a catastrophic fuel system failure. The truck has only 110,000 miles and has been maintained appropriately. It is registered in the State of Illinois and is used for my…

Fuel/propulsion System · received Jan 7, 2026 · NHTSA complaint 11709382

Other Ford F-600 SD years

← 2020 F-600 SD · 2022 F-600 SD →

See all Ford F-600 SD problems by year, every Ford model, or the Ford VIN decoder.

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Frequently asked questions

What are the most common problems with the 2021 Ford F-600 SD?

Owners most often report fuel/propulsion system, fuel system, diesel problems. The top one, fuel/propulsion system, accounts for 1 complaint.

Was there a recall on the 2021 Ford F-600 SD?

Yes, 5 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2021 Ford F-600 SD a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other F-600 SD model years, the 2021 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.