337-5878 333-2906 333-2907 3375878 3332906 3332907 324E em will send free parts to repair. And this model Final Drive used for excavator hitachi

333-2906 333-2907 353-0494 3332906 3332907 3530494 326D and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi