Use cautionVehicle recall · NHTSA · Published May 25, 2021
Ford 2021 F-350 SD: Wheel Extender Risk May Cause Crash
Ford recalls 2021 F-350 SD trucks with front wheel hub extenders that may detach, increasing crash risk. Owners must stop driving until nuts are verified by dealer.
“Ford 2021 F-350 SD: Wheel Extender Risk May Cause Crash.” GovInfoNow, updated August 18, 2026. https://govinfonow.com/recall/80395-ford-2021-f-350-sd-wheel-extender-risk-may-cause. Based on NHTSA recall #21V390000 (https://www.nhtsa.gov/recalls?nhtsaId=21V390000).
Ford Motor Company recalled certain 2021 F-350, F-450, F-550, and F-600 vehicles due to a detached wheel hazard. The National Highway Traffic Safety Administration announced the recall on May 25, 2021. Owners should not drive their vehicles until dealers inspect and tighten the front wheel hub extender nuts free of charge.
How to tell if you have it
Ford F-350 SD, 2021
Ford F-450 SD, 2021
Ford F-550 SD, 2021
Ford F-600 SD, 2021
What to do
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. Owners may contact Ford customer service at 1-866-436-7332.
The hazard
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. This detachment increases the risk of a crash.
Context
GovInfoNow's records show Ford Motor Company has 643 other recalls on record since 2010-01-29. Other recent recalls include the Ford 2021 Bronco Hard Top Recall (2026-10-22), the Ford F-450 SD Recall (2026-10-06), and the Ford F-150 Recall (2026-10-06). NHTSA has 98 owner complaints on file for the 2021 FORD F-350 SD, with the latest received 2026-10-07.
How to tell if you have this one
Check for the 2021 F-350 SD model with front wheel hub extenders. The recall was announced on June 18, 2021, and applies to vehicles sold after that date.
Brand
Ford
Category
Vehicle
Based on the official NHTSA remedy
What to do — step by step
Stop Driving Until Verified
Do not drive the vehicle until a dealer verifies the torque of the wheel extender nuts.
Contact Ford Customer Service
Call Ford at 1-866-436-7332 to get instructions for the free inspection and tightening.
Official remedy
What NHTSA says to do
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.
How this recall unfolded
Recall timeline
Owners were mailed letters 24 days after NHTSA received the defect report.
1NHTSA received the defect report
2Owner letters mailed
Dates from the agency record only; steps without a date are left out.
Take action
Contact Ford
We’ve drafted a message you can send Ford to request your refund or repair — edit it as you like.
Subject: Recall 21V390000 — Ford 2021 F-350 SD: Wheel Extender Risk May Cause Crash
Hello,
I own a Ford 2021 F-350 SD: Wheel Extender Risk May Cause Crash that is covered by recall 21V390000 from Ford.
The official recall notice states: 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.
I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?
Thank you.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Plain-language summary written by qwen3:4b on August 18, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.