This horn with large pulley is used for all Leslies using single motor with 2 speed operation, which includes 122A, 147A, 912, 914, 812, 814, 750, 723 and older 315, 415, 422, 615, 840. We recommend that a factory-trained technician install this part.
Part number 514-140436 and 522-141154 (must order both)