2011–2012 MCI D4000, 2011–2012 MCI D4005, 2011–2012 MCI D4500 and 1 other model Recall: Vehicles may have an incorrectly installed exhaust bellow pipe, resulting…
NHTSA campaign 17V337000 · Engine and Engine Cooling · filed May 24, 2017 · verified Jul 30, 2026
The defect
Motor Coach Industries (MCI) is recalling certain 2011-2012 MCI D4000, D4005, D4500 and D4505 coaches equipped with Cummins ISX 12 liter engines. The vehicles may have an incorrectly installed exhaust bellow pipe, resulting in a bend in the pipe which can cause its premature failure.
The risk
If the pipe fails and a diesel regeneration cycle occurs, the hot exhaust gases will increase 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
MCI will notify owners and dealers will inspect and replace any deformed or failed bellow pipes if necessary, free of charge. The recall began on June 15, 2017. Owners may contact Motor Industries at 1-800-241-2947. MCI's number for this recall is SB 397B.
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
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- 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…
- 2017–2018 MCI D4000 and 7 other models — Sealing washer may not seat correctly in the pilot bore…
Other campaigns involving MCI vehicles
Source: NHTSA recall database, campaign 17V337000 (manufacturer number SB 397B). Data last verified Jul 30, 2026.