Oshkosh S-Series, model years 2020 to 2021. Filed by Oshkosh Corporation and reported to NHTSA on 26 February 2021. 19 vehicles potentially affected.
What the notice says Oshkosh Corporation (Oshkosh) is recalling certain 2020-2021 S-Series vehicles. The rear axle output shaft may not have been heat-treated properly, which could cause the shaft to fracture.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
What owners ask about this recall
- Which vehicles does recall 21V125 cover?
- Oshkosh S-Series, model years 2020-2021.
- What is wrong with them?
- Oshkosh Corporation (Oshkosh) is recalling certain 2020-2021 S-Series vehicles. The rear axle output shaft may not have been heat-treated properly, which could cause the shaft to fracture.
- What can happen if it is not put right?
- A fractured rear output shaft may cause the shaft or interaxle driveline to detach from the vehicle, increasing the risk of a crash or injury.
- Is there a fix yet?
- Yes, and it is free. Oshkosh will notify owners, and owners will be instructed to inspect the output shaft, and if necessary, order a new one and replace it, free of charge. The recall began on March 31, 2021. Owners may contact Oshkosh customer service at 1-888-686-7278.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “A fractured rear output shaft may cause the shaft or interaxle driveline to detach from the vehicle, increasing the risk of a crash or injury.”
affected
in the notice
caught
| Campaign | 21V125 |
|---|---|
| Filed by | Oshkosh Corporation |
| System at fault | Power Train:Automatic Transmission:Internal:Shaft:Output |
| Reported to NHTSA | 26 February 2021 |
| Model years | 2020-2021 |
| Vehicles named | OSHKOSH S-SERIES |
What the notice says today
The consequence
A fractured rear output shaft may cause the shaft or interaxle driveline to detach from the vehicle, increasing the risk of a crash or injury.
The remedy
Oshkosh will notify owners, and owners will be instructed to inspect the output shaft, and if necessary, order a new one and replace it, free of charge. The recall began on March 31, 2021. Owners may contact Oshkosh customer service at 1-888-686-7278.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 816 notices in the record whose component field names power train. Across that group the median wait before owners were written to was 42 days.
The models named here, across their whole recall history
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Oshkosh notices we hold
- 25V228: 2024-2025 S-Series
- 25V224: 2025 Defense NGDV ICE 2WD, AWD, and BEV 2WD
- 25V192: 2024-2025 ICE 2WD, ICE AWD, and BEV 2WD Next Generation delivery
- 25E006: aftermarket Electronic Throttle Pedal Assemblies with part number A000F675
- 24V928: 2025 Defense NGDV ICE
- 24V917: 2022-2024 S-Series
- 24V471: Oshkosh Defense NGDV ICE
- 24E041: Shepphard Steering Gears, with part number 3875726, sold as replacement parts for certain S-Series
All 29 Oshkosh campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 21V125 on 23 August 2026, they were:
- Defect summary
32509fb7 - Consequence
9ad808c2 - Remedy
60afff9c
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 21V125 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Oshkosh S-Series, in all seven, is kept on that vehicle's own page, with the newest in each.
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