Part Description BACK Mack HT650 (Stock # 8009N) Fan Clutch/Hubs $895.00 Quantity 1 Add to Cart Part Type Fan Clutch/Hubs Serial# . Truck Make Mack Part# 8009N Engine Make Mack Engine Model HT650 Condition New Description MACK HT650 CONVERSION FAN CLUTCH - 2.56 HUB" CORE