NHTSA recall 87V150000
Engine and engine cooling › Cooling system › Fan
International Harvester S Series
The defect
Engine viscous fan drive mounting studs located in fan spacer may not be of specified hardness, nor have specified thread locking material.
The risk
Fan could work loose during engine operation andseparate which could result in personal injury to persons near enginecompartment.
The remedy
Replace mounting studs in fan spacer.