Ford F-53 2020–2021 — technical service bulletin
Bulletin SSM 49694 · NHTSA communication 10189585 · issued Mar 26, 2021
Technical service bulletin
communication type
Suspension
component
2020–2021
model years
2
vehicle entries
Official summary
Some 2020-2021 F-53 Motorhome Chassis vehicles requiring service to the rear stabilizer bar may have a detached weld nut on the rear axle housing. Service this missing nut with part number W713546-S439.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.