2019–2021 IC Bus Resb Recall: Sealing washer may not seat correctly in the pilot bore holes, allowing…
NHTSA campaign 21V367000 · Fuel System, Diesel · filed May 19, 2021 · verified Jul 30, 2026
The defect
Navistar, Inc. (Navistar) is recalling certain 2019-2021 IC Bus RE School Buses. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
The risk
A fuel leak in the presence of an ignition source increases the risk of a fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Dealers will inspect the rail threads, and replace the rail as necessary, free of charge. Owner notification letters were mailed on June 21, 2021. Owners may contact Navistar customer service at 1-800-448-7825.
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.
Affected vehicles
Related recalls
More IC Bus Resb recalls
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- 2022–2024 IC Bus Cesb and 2 other models — Anti-lock brake system (ABS) indicator light does not…
- 2022–2023 IC Bus CE Sbus and 3 other models — Roof panel may have been manufactured with insufficient…
- 2023–2024 IC Bus Cesb and 2 other models — Fasteners that connect the transverse torque arm to the…
- 2023 IC Bus Cesb and 2 other models — Hex flange lock nuts, used in the suspension and steering…
Other campaigns involving IC Bus vehicles
Source: NHTSA recall database, campaign 21V367000 (manufacturer number None). Data last verified Jul 30, 2026.