Detroit Series 60, Fan Clutch/Hubs, (GOOD USED/TESTED) Horton Detroit Series 60 999300 Fan Clutch For Sale, P/N 999300, Bracket P/N 601717, WF2, 9C46, P/N 999300, 989300, Serial # 5700432, Viscous, Stock # 4937 | Tested & Inspected!