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

557-5880 441-3007 535-6243 5575880 4413007 5356243 325F em will send free parts to repair. And this model Final Drive used for excavator hitachi

441-3007 480-6767 480-6768 4413007 4806767 4806768 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

441-3007 507-6560 507-6561 4413007 5076560 5076561 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

441-3007 441-3013 480-6767 4413007 4413013 4806767 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