507-6559 507-6560 507-6561 5076559 5076560 5076561 323 em will send free parts to repair. And this model Final Drive used for excavator hitachi

507-6559 511-6006 511-6007 5076559 5116006 5116007 325F em will send free parts to repair. And this model Final Drive used for excavator hitachi

507-6558 507-6559 507-6560 5076558 5076559 5076560 323F and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi

507-6558 507-6559 507-6560 5076558 5076559 5076560 323E and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi