31N9-10131 31N9-10132 31N910131 31N910132 R320-7 Original new and rebuild could offer and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model swing motor used for excavator Hyundai

31N9-10131 31N9-10132 31N910131 31N910132 R320-7A Original new and rebuild could offer and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model swing motor used for excavator Hyundai