THOMAS BUILT SAF-T-LINER C2 2011: ENGINE AND ENGINE COOLING:ENGINE:DIESEL

General Information

NHTSA Campaign ID Number: 12V570000

Make Model Year
THOMAS BUILT SAF-T-LINER C2 2011
Date Owners Notified Date Received by ODI Date Added to Database
2013-01-04 2012-12-11 2012-12-11

Production Dates: 2010-03-01 - 2012-07-31

Manufacturers Involved: Daimler Trucks North America, LLC

Manufacturer Campaign Number: FL-635

Component: ENGINE AND ENGINE COOLING:ENGINE:DIESEL

Potential Number Of Units Affected: 6296

Report Initiator: MFR MFR Report

Summary

Daimler Trucks North America "DTNA" is recalling certain model year 2011 through 2013 Thomas Built school buses manufactured from March 2010 through July 2012, equipped with Cummins ISB6.7 diesel engines manufactured from February 16, 2010, through May 4, 2012, containing a fan pulley, part number 3914462. 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.

Consequence

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.

Remedy

Cummins will notify owners of the recall. Repairs will be performed by Cummins authorized service facilities. A new fan drive pulley will be installed free of charge. The safety recall began on January 4, 2013. Owners may contact Cummins at 1-812-377-5000 or DTNA at 1-800-547-0712.

Notes

DTNA's recall campaign number is FL-635.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.