353-0509  210-3529 350-0450 3530509  2103529 3500450 318D 318D2 em will send free parts to repair. And this model Final Drive used for excavator hitachi

165-5777 185-6952 210-3529 1655777 1856952 2103529 315C 315D and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi

210-3529 185-6953 2103529 1856953 311C and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model Final Drive used for excavator hitachi