Vehicle recall 21V125000 · February 26, 2021

2020-2021 Oshkosh S-Series

The rear axle output shaft may not have been heat-treated properly, which could cause the shaft to fracture.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary: 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.
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.
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.
Notes: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Recall details

NHTSA campaign: 21V125000
Reported to NHTSA: February 26, 2021
Filed by: Oshkosh Corporation
Owner notification: March 31, 2021
Vehicles potentially affected: 19
Initiated by: the manufacturer
Components: Power train › Automatic transmission › Internal › Shaft › Output; Power train › Manual transmission › Internal › Shaft › Output

Recall 21V125000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Oshkosh S-Series (2020-2021): 2021, 2020

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