NHTSA Campaign Id 87V150000; Date: Sep. 18, 1987
Fan could work loose during engine operation andseparate which could result in personal injury to persons near enginecompartment.
1987 International Harvester S Series
Component: Engine And Engine Cooling:cooling System:fan
Manufactured by: Navistar Intl Corp.
Affected Units:: 1,521
Engine viscous fan drive mounting studs located in fan spacer may not be of specified hardness, nor have specified thread locking material.
Replace mounting studs in fan spacer.
System: engine fanvehicle description: heavy duty trucks
Date Owners notified by Manufacturer: Aug 24, 1987
Also see: