507-9340 507-9341 507-9342 5079340 5079341 5079342 336F and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi

507-9341 507-9342 518-3386 5079341 5079342 5183386 335F 336E and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi