Facing swing instability, hydraulic response delay, or reduced slewing efficiency in R110-9, R110, or R120 excavator fleets? For construction contractors, equipment distributors, and maintenance specialists, a reliable swing motor assembly is essential to maintain machine productivity and reduce unexpected downtime. RITO R110-9 R110 R120 Excavator Swing Motor Assembly 31Q4-11131 31Q411131 Hydraulic Rotary Drive Slewing Unit delivers stable torque output, efficient hydraulic power conversion, and dependable rotary performance for smooth and reliable excavator swing operation in demanding construction and earthmoving environments. The 31Q4-11131 swing motor assembly is commonly associated with Hyundai R110-9 excavator swing drive applications.
Item NO.:
31Q4-11131Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time:
2-3 DAYSCompared with standard aftermarket swing motor units, it provides consistent power transmission, stable rotary control, and reliable performance during continuous excavation cycles. Designed for OEM/OEM-equivalent replacement supply, it supports professional repair, maintenance, and bulk procurement requirements for Hyundai R110-9, R110, and R120 excavator applications across construction, infrastructure, landscaping, and general earthmoving projects.

| Part Number | 31Q4-11131 / 31Q411131 |
|---|---|
| Part Name | R110-9 R110 R120 Excavator Swing Motor Assembly Hydraulic Rotary Drive Slewing Unit |
| Compatible Brand | HYUNDAI |
| Applicable Models | R110-9, R110, R120 Medium Urban & Infrastructure Excavator |
| Application | Excavator upper body slewing hydraulic drive system, applied to municipal engineering, road construction, landscaping and aggregate stacking & loading works |
| Material | High-strength forged alloy steel + medium-load wear-resistant bronze friction accessories |
| Product Color | Matte anti-rust industrial metallic gray |
| Working Temperature | -22℃ ~ +58℃ |
| Key Function | Convert high hydraulic pressure into stable medium slewing torque to drive R110-9 / R110 / R120 excavator upper body rotation for infrastructure and earthmoving projects |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Provides powerful and stable rotary force for R110-9, R110, and R120 excavator upper structure rotation and swing operations.

Converts hydraulic pressure into controlled rotary movement for smooth and precise swing operation.

Provides stable speed reduction, increased torque output, and efficient power transmission under heavy-duty excavation conditions.

Matches 31Q4-11131 / 31Q411131 specifications for Hyundai R110 series excavator hydraulic swing systems.

FAQ
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
Leave A Message
Scan to wechat :