507-6557 441-3007 507-6558 5076557 4413007 5076558 323 em will send free parts to repair. And this model Final Drive used for excavator hitachi

441-3015 507-6557 507-6558 4413015 5076557 5076558 325F em will send free parts to repair. And this model Final Drive used for excavator hitachi

507-6557 507-6558 507-6559 5076557 5076558 5076559 320F and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi

507-6557 507-6558 507-6559 5076557 5076558 5076559 320E and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi

480-6768 507-6557 507-6559 4806768 5076557 5076559 318E 318F 323D2 and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi