Cummins ISB6.7: Engine and engine cooling
Recall 12E054000 · Nov 29, 2012 · Cummins Inc.
7,040
units affected
7,040
units affected
Facts
- Recall number
- 12E054000
- Date
- Nov 29, 2012
- Maker
- Cummins Inc.
- Units affected
- 7,040
- Kind
- Vehicle equipment
- Component
- Engine and engine cooling > Engine > Diesel
- Started by
- The maker
- Hazard
- Fire
What is wrong
Cummins is recalling certain model ISB6.7 diesel engines manufactured from February 16, 2010, through May 4, 2012, equipped with fan pulley Part Number 3914462 and installed on certain Thomas Built Buses, Inc. school buses. The subject fan pulley is part of the accessory drive system on the front of the engine. This system is used to drive such components as the refrigerant compressors, the radiator fan, and the engine water pump. The web of the pulley can fatigue over time, causing the pulley to fail.
What can happen
If this occurs, the fan belt may lose engagement of the water pump, allowing the cooling system to overheat. This may result in exceeding temperature limits, potentially disabling the school bus. If the school bus is occupied when it becomes disabled, the occupants would need to exit the vehicle and be transferred to another vehicle, putting them at risk of injury.
The fix
Recall repairs are free of charge.
Cummins will notify Thomas Built of this defect and the potential safety consequences, and will work with them to identify and notify the affected owners. Cummins will install a new fan drive pulley, without charge, through Cummins' service network. The recall began on November 27, 2012. Notification to owners began on January 4, 2013. Owners may contact Cummins at 1-812-377-5000.
Vehicles covered
1 model, 1 model year in all
| Make | Model | Model years |
|---|---|---|
| Cummins | ISB6.7 | Not stated |
Related pages
Questions and answers
Which vehicles are in recall 12E054000?
1 model: Cummins ISB6.7 (all years), about 7,040 vehicles in all.
What is the fix for recall 12E054000?
Cummins will notify Thomas Built of this defect and the potential safety consequences, and will work with them to identify and notify the affected owners. Cummins will install a new fan drive pulley, without charge, through Cummins' service network. The recall began on November 27, 2012. Notification to owners began.
What can happen?
If this occurs, the fan belt may lose engagement of the water pump, allowing the cooling system to overheat. This may result in exceeding temperature limits, potentially disabling the school bus. If the school bus is occupied when it becomes disabled, the occupants would need to exit the vehicle and be transferred to.
A recall means the maker found a safety problem and offers a free fix; it does not mean every unit has the problem. Units affected are as reported by the company. Popular models sell more and so have more recalls and complaints. Official public data; texts are shortened. A dealer can tell whether a single vehicle still needs the repair.