4237779 4284142 EX1100BE 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 hitachi

4237779 4284142 EX1100 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 hitachi