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

480-6767 480-6768 507-6557 4806767 4806768 5076557 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

441-3013 480-6767 480-6768 4413013 4806767 4806768 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