A/C & Heating Systems, , CUMMINS AI, Fan Clutch, (GOOD USED) HORTON FAN CLUTCH PART # 999498 FOR SALE, OFF MACK DIESEL ENGINE, FITS 2002-2007 MACK MR, LE TRUCK WITH MACK ASET AI ENGINE, OEM # 989477, SERVICE # 999498, MOUNT PART # 601741 WF2, STOCK # 2198