31Q9-40020 31Q9-40021 31Q940020 31Q940021 R290-9 Original new and rebuild could offer and With 6-12 months warranty，Any quality problem will send free parts to repair. And this model swing motor used for excavator JCB

OTTO 31Q8-40040 31Q9-40020 31Q9-40021 31Q840040 31Q940020 31Q940021 R250-9 Excavator Final Drive This Final Drive used for excavator Hyundai, Original new and rebuild could offer and With 6-12 months warranty

OTTO 31Q9-40010 31Q9-40020 31Q9-40021 31Q940010 31Q940020 31Q940021 R320-9 Excavator Final Drive This Final Drive used for excavator Hyundai, Original new and rebuild could offer and With 6-12 months warranty