401-00307B 31M9-10130 Hydraulic Swing Motor for Doosan DH55 DH60 Hyundai R55 R60-7

Aftermarket 401-00307B / 31M9-10130 swing motor for selected Doosan DH55, DH60, SOLAR 55W-V and Hyundai R55 / R60-7 excavators. Confirm part number and swing motor tag before ordering.

Function & Typical Symptoms

Hydraulic Swing Motor is used in the upper structure swing system of the excavator. Common symptoms of a worn swing motor include weak swing force, unstable rotation, internal leakage, abnormal noise and slow response.

Part Numbers & Fitment Notes

Part Number: 401-00307B,  31M9-10130

Application: Doosan DH55, DH60, SOLAR 55W-V; Hyundai R55, R60-7 (public seller catalogs also mention related small-excavator variants; verify by part number and motor tag)

Reference numbers commonly listed in the reviewed sources include 401-00307B; 31M8-10130.

Public seller catalogs and parts references were reviewed for this application, but final confirmation should always be based on the removed unit tag and mounting details.

Before Ordering

To reduce ordering mistakes, please confirm the removed unit tag, complete part number, machine model, tooth count, flange pattern and hydraulic port layout before purchase.

Quality Control & Supply

This page is written for an aftermarket replacement part. OEM numbers and model names are used for identification and fitment reference only. For quotation, please send the part number, machine model and clear photos of the motor tag or removed unit.

Packaging & Shipping

MOQ: 1 piece. Export packing can be arranged for courier, air freight or sea shipment according to your order quantity and destination.