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#BS-2021-FORF55-4A8B2021 Ford F-550Problems, Recalls & Reliability
Based on reports from 16 owners and 9 recalls for this exact model.
Data updated ·checked October 21, 2026 · NHTSA complaints through October 19, 2026
Preliminary Verdict
Proceed with Caution
Based on 16 complaints, 0 crashes, 5 fires, and 9 recalls.
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Mechanic Inspection Checklist
9 owners reported fuel system issues — failures commonly reported around 101K miles.
30,000-Mile Cost Projection
Best Case
Most Likely
Worst Case
Top cost driver: Fuel System (9 reports).
Also in your report
Owner Intelligence
AI-synthesized themes from real complaints
Buyer Lot Checklist
Questions, test drive checks, walk-away triggers
Negotiation Talking Points
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Buy / Skip Verdict
Final recommendation with conditions
Where the complaints fall
2021 Ford F-550: Known Issues & Problem Areas
Fuel System Issues
Fuel System complaints account for 56% of all reports filed for the 2021 Ford F-550, with 9 owners filing complaints with NHTSA. The median mileage at time of complaint is 101,000 miles, suggesting issues tend to surface around the 101K-mile mark.
Engine Issues
Engine complaints account for 13% of all reports filed for the 2021 Ford F-550, with 2 owners filing complaints with NHTSA. Owners should pay attention to engine-related symptoms during test drives and pre-purchase inspections.
Engine And Engine Cooling:engine:diesel Issues
Engine And Engine Cooling:engine:diesel complaints account for 6% of all reports filed for the 2021 Ford F-550, with 1 owners filing complaints with NHTSA. Owners should pay attention to engine and engine cooling:engine:diesel-related symptoms during test drives and pre-purchase inspections.
Fuel System, Other:fuel Filter Issues
Fuel System, Other:fuel Filter complaints account for 6% of all reports filed for the 2021 Ford F-550, with 1 owners filing complaints with NHTSA. Owners should pay attention to fuel system, other:fuel filter-related symptoms during test drives and pre-purchase inspections.
Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.
Complaint trend by year
Complaints filed with NHTSA by year for the 2021 Ford F-550. Recent trend: decreasing.
Don't negotiate blind — know what this car costs to own
Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict
Recall History (9 recalls)
VISIBILITY:WINDSHIELD:CRITICAL FASTENERS
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."
POWER TRAIN:AXLE HUBS
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.
FUEL SYSTEM, DIESEL
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.
VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES
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.
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
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."
+ 4 more recalls in the full report
Recall severity analysis & seller scripts
The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.
NHTSA Defect Investigations (1)
1 investigation still open: NHTSA is examining whether a defect warrants a recall.
Sogefi Secondary Diesel Fuel Filter Leak
FUEL SYSTEM, DIESEL
The worst model year for the Ford F-550 is the 2006 — worth knowing if you're cross-shopping years. The biggest problem area is fuel system.
About this data
NHTSA Complaints
Federal database of owner-filed safety complaints. 16 records for this vehicle.
NHTSA Recalls
Manufacturer-issued safety recalls. 9 recalls found for this vehicle.
Repair Cost Data
Real-world repair costs from owner reports and independent databases.
Last updated (checked October 21, 2026). NHTSA complaints received through October 19, 2026.
Other Ford F-550 Model Years
2021 Ford F-550: Frequently Asked Questions
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Get the Full 2021 Ford F-550 Report
10 sections of AI analysis based on 16 owner reports. Know before you buy.