332-7500 277-6697 3327500 2776697 312D and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi

32-7499 332-7500 353-0506 327499 3327500 3530506 311D and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi