Vehicle recall 11V457000 · August 31, 2011
MCI E4500 and J4500
The v-band clamp assembly, part numbers Q187684, Q187685, and Q187686, used to connect the inlet and outlet cone sections to the diesel oxidation catalyst (doc)/diesel…
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Motor coach industries, Inc. (mci) is recalling certain model year 2011 E4500 and J4500 motor coaches manufactured from December 2010 through January 2011, equipped with a cummins isx 11.9 diesel engine. The v-band clamp assembly, part numbers Q187684, Q187685, and Q187686, used to connect the inlet and outlet cone sections to the diesel oxidation catalyst (doc)/diesel particulate filter (DPF) include a t-bolt which can fracture and fail when subjected to stress or load. A fracture or failure of the t-bolt may cause the clamp to loosen and the inlet or outlet sections attached to the doc/DPF housing to disconnect.
- Consequence
- If the inlet or outlet sections disconnect, hot exhaust gases can vent prior to exiting the tailpipe, creating the risk of combustion and a fire. If both clamps fail, there is a risk in some applications that the doc/DPF housing may detach completely, creating a road hazard.
- Remedy
- Mci will notify owners, and repairs will be performed by authorized cummins dealers free of charge. The safety recall began on September 19, 2011. Owners may contact mci at 1-800-241-2947 or cummins at 1-812-377-5000 for more information.
- Notes
- Mci's recall campaign number is 364.CUMMINS' recall campaign number is C1154. Owners may also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to http://www.safercar.gov.
Recall details
- NHTSA campaign
- 11V457000
- Reported to NHTSA
- August 31, 2011
- Filed by
- MOTOR COACH INDUSTRIES, INC
- Manufacturer campaign
- 364
- Owner notification
- September 19, 2011
- Vehicles potentially affected
- 10
- Initiated by
- the manufacturer
- Components
- Engine and engine cooling
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
Has your MCI been repaired?
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NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A MCI dealer can also check your VIN. Recall repairs are free.