Part Number: BT005400AV BT54 Poly v-belt, Series J. When installing the belt, the transmission shaft and the transmission wheel are vertical, the transmission shaft parallel and the transmission wheel is in the same plane. When the machine is running, try to keep it horizontal. Compatible with Campbell-Hausfelt Air Compressors VT610203, VT910203, VT618901, VT620800, VT622500, VT622600, VT619600, VT618301, VT618801, VT610205, VT610305, VT910205, VT610204, VT610304, VT910204, VT617000, VT618300, VT618800, VT610604, VT618900, VT617001AJ, VT6103