2017–2018 MCI D4000, 2017–2019 MCI D4000ISTV, 2017–2019 MCI D4005 and 5 other models Recall: Sealing washer may not seat correctly in the pilot bore holes, allowing…
NHTSA campaign 21V364000 · Fuel System, Diesel · filed May 18, 2021 · verified Jul 30, 2026
The defect
Motor Coach Industries (MCI) is recalling certain 2017-2018 D4000, 2017-2019 D4005, D4000ISTV, D4505, 2017-2020 D4500, J4500, 2018-2020 D45CRTLE, and 2018-2021 J3500 vehicles. 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 28, 2021. Owners may contact MCI customer service at 1-800-241-2947. MCI's number for this recall is R21-009.
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 MCI D4000 recalls
- 1988–2001 MCI 102D3 and 11 other models — Please refer to MCI's recall report for specific model year…
- 2014–2018 MCI D4000 and 4 other models — Red beacon lighting on the Threshold Warning System (TWS)…
- 2021 MCI D4000 and 7 other models — Fuel tubes between the fuel rail and the injectors for…
- 2018 MCI D4000 and 8 other models — Main Distribution Panel (MDP) located within the battery…
- 2018–2020 MCI D4000 and 5 other models — A build-up of debris, corrosion, and/or water flow could…
Other campaigns involving MCI vehicles
Source: NHTSA recall database, campaign 21V364000 (manufacturer number R21-009). Data last verified Jul 30, 2026.