Home / Latest recalls / 12V570

Thomas Built Buses Saf-T-Liner C2 Recall 12V570: Engine And Engine Cooling:Engine:Diesel

NHTSA campaign 12V570, reported December 11, 2012, 6,296 vehicles potentially affected.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 12V570Daimler Trucks North America
Component
ENGINE AND ENGINE COOLING:ENGINE:DIESEL
Problem
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.
Risk
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.

Affected vehicles

Thomas Built Saf-T-Liner C22011
Thomas Built Buses Saf-T-Liner C220122013