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#BS-2021-FORF35-1F412021 Ford F-350Problems, Recalls & Reliability
Based on reports from 132 owners and 15 recalls for this exact model.
Data updated ·checked October 21, 2026 · NHTSA complaints through October 19, 2026
Preliminary Verdict
Think Twice
Based on 132 complaints, 2 crashes, 6 fires, and 15 recalls.
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Mechanic Inspection Checklist
40 owners reported fuel system issues — failures commonly reported around 85K miles.
Failure Timeline by Mileage
Peak failure range: 0–30K miles (11 reports) • Median: 85K miles
30,000-Mile Cost Projection
Best Case
Most Likely
Worst Case
Top cost driver: Fuel System (40 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
Data-backed dollar deductions
Buy / Skip Verdict
Final recommendation with conditions
Where the complaints fall
2021 Ford F-350: Known Issues & Problem Areas
Fuel System Issues
Fuel System complaints account for 30% of all reports filed for the 2021 Ford F-350, with 40 owners filing complaints with NHTSA. The median mileage at time of complaint is 85,000 miles, suggesting issues tend to surface around the 85K-mile mark.
Engine Issues
Engine complaints account for 11% of all reports filed for the 2021 Ford F-350, with 15 owners filing complaints with NHTSA. Owners should pay attention to engine-related symptoms during test drives and pre-purchase inspections.
Electrical Issues
Electrical complaints account for 8% of all reports filed for the 2021 Ford F-350, with 11 owners filing complaints with NHTSA. Owners should pay attention to electrical-related symptoms during test drives and pre-purchase inspections.
Drivetrain Issues
Drivetrain complaints account for 7% of all reports filed for the 2021 Ford F-350, with 9 owners filing complaints with NHTSA. Owners should pay attention to drivetrain-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-350. 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 (15 recalls)
EQUIPMENT
Icon Vehicle Dynamics, LLC (Icon) is recalling all 05-UP FSD 2.5 Centerline Stabilizer Kits with part number 65050. The kits were sold as an accessory for certain 2005-2021 Ford F-250 4X4 and F-350 4X4 pickup trucks. The foam ring inside the stabilizer "through shaft" may block the piston ports, possibly causing the steering to lock up.
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."
TRAILER HITCHES:FIFTH WHEEL ASSEMBLY
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.
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.
POWER TRAIN:AXLE ASSEMBLY
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.
+ 10 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.
2021 Ford F-350 NHTSA Safety Ratings
Overall
Not ratedFrontal crash
Not ratedSide crash
Not ratedRollover
Not ratedFrom NHTSA's New Car Assessment Program (5-Star Safety Ratings). Where NHTSA tested more than one version of this vehicle, the lowest rating is shown.
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-350 is the 2008 — worth knowing if you're cross-shopping years. The biggest problem area is engine.
About this data
NHTSA Complaints
Federal database of owner-filed safety complaints. 132 records for this vehicle.
NHTSA Recalls
Manufacturer-issued safety recalls. 15 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; safety ratings from NHTSA's 5-Star program.
Other Ford F-350 Model Years
2021 Ford F-350: Frequently Asked Questions
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Get the Full 2021 Ford F-350 Report
10 sections of AI analysis based on 132 owner reports. Know before you buy.