Kubota KX057-4 Undercarriage Parts
Undercarriage parts available for the Kubota KX057-4: track roller (OEM RD441-21702), carrier roller (OEM RD461-21900), sprocket (OEM RD411-14432).
Parts on this page also fit the Kubota KX161-3, U45-3, U55-4, KX057-5 — see each part's fitment list for the exact models.
Parts list with OEM numbers
| Part | OEM part number | Fits | Details |
|---|---|---|---|
| Track Roller (bottom roller) | RD441-21702, RD411-21700, RD411-21703 | KX161-3, KX161-3S, KX161-3ST, KX057-4, U45-3, U55-4 | Specs & quote |
| Carrier Roller (top roller) | RD461-21900 | KX057-4, KX057-5, KX040-4, KX040-5, KX121-3, KX161-3 | Specs & quote |
| Sprocket (drive sprocket) | RD411-14432, RD411-14430, RD546-14430 | KX057-4, KX057-5, KX161-3, U45-3, U48-4, U55-4 | Specs & quote |
Part numbers can change with machine serial ranges. Send your serial number and we will confirm before quoting.
Ordering
Send the parts you need from this list — track roller, carrier roller, sprocket — and we quote them together. Each part comes from a partner factory that specializes in it, and the order is consolidated into one shipment from Xiamen.
| MOQ | 1 set per machine |
|---|---|
| Lead time | 7–25 days, depending on part type and quantity |
| Warranty | 12 months |
| Payment | T/T, L/C |
| Shipping port | Xiamen |