NHTSA vehicle safety data
2020 Western Star WJ121 Recalls, Ratings & Complaints
The 2020 Western Star WJ121 has 2 NHTSA recall campaigns and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized Western Star dealer.
NHTSA recall and complaint data for the 2020 Western Star WJ121. Recall data is refreshed daily from NHTSA.
FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:FUEL RAIL
NHTSA #21V965000Reported December 13, 2021 · Daimler Trucks North America, LLC
Potentially affected: 2,843 vehicles
Defect description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2022 Western Star 4700, 2019-2022 Freightliner 114SD, 2021-2022 Western Star 49X, Freightliner Cascadia P4, 2022 Western Star 47X, 2021 Western Star WF110, 2020 Western Star WJ121, and 2019-2021 FCCC XCP Chassis vehicles. The fuel tubes between the fuel rail and the injectors for cylinders four, five, and six may fatigue and crack, which can result in a high pressure fuel leak.
Safety consequence
A high pressure fuel leak in the presence of an ignition source can increase the risk of a fire.
Manufacturer remedy
Dealers will replace the fuel tubes, and install vibration isolators, free of charge. Owner notification letters were mailed January 28, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-915.
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.nhtsa.gov.
ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
NHTSA #21V481000Reported June 25, 2021 · Daimler Trucks North America, LLC
Potentially affected: 122,056 vehicles
Defect description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2019-2022 Freightliner Cascadia P4, 2021 Western Star WH126, 2020 Western Star WJ121, and 2021-2022 Western Star 49X vehicles. The battery cable terminal may break, resulting in a loss of electrical power and unintended engine stall.
Safety consequence
An engine stall increases the risk of a crash.
Manufacturer remedy
Dealers will repair or replace the battery cables, free of charge. Owner notification letters were mailed on January 7, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL-893.
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.nhtsa.gov.
Check your 2020 Western Star WJ121 VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Western Star WJ121 at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
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