Recalls › 77V173000

NHTSA recall 77V173000

Engine and engine cooling › Cooling system › Fan

Mack CF and 13 more

Reported Oct 12, 197748,000 vehicles affectedMACK TRUCKS, INCORPORATED

The defect

The flex blade fans on the involved vehicles may develop cracks in the laminated stiffener as a result of fatigue during operation. If such a condition exists and the cracks go undetected, continued operation could cause pieces of the stiffener to break off.

The remedy

Dealer will replace the original fan with a steel fixed blade fan, free of charge.

Official recall at NHTSA ↗

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Vehicles in this recall

Mack CF
197219731974197519761977
Mack DM
197219731974197519761977
Mack Dmm
197219731974197519761977
Mack F
197219731974197519761977
Mack FL
197219731974197519761977
Mack FS
197219731974197519761977
Mack Hmm
197219731974197519761977
Mack R
197219731974197519761977
Mack RD
197219731974197519761977
Mack RL
197219731974197519761977
Mack RM
197219731974197519761977
Mack U
197219731974197519761977
Mack WL
197219731974197519761977
Mack WS
197219731974197519761977

Notes

Vehicle description: trucks equipped with six-cylinder engines.system: engine cooling; fan.consequences of defect: broken pieces can be propelled outside of the fanshroud and will present an immediate danger and possible injury to personsstanding nearby.note: prior to correction, vehicle should not be serviced with the hood raisedand the engine running.