Parts catalog Sem Hyundai All Sem 21FP-78020 SEM-TRACTION(350A) HBR14-7 21FP-78150 SEM-TRACTION(350A)36V HBR14-7 21FS-78020 SEM-TRACTION(425A) HBR20-7 21FS-78150 SEM-TRACTION(425A) 48V HBR20-7 :