Facing swing delay, unstable rotation, or reduced slewing efficiency in EX50U excavator fleets? For construction contractors, equipment distributors, and repair specialists, reliable upper swing components are essential to maintain machine performance and reduce downtime. RITO Excavator Upper Swing Drive 4390492 EX50U delivers stable torque transmission and smooth rotary control for dependable excavator swing operation in daily working conditions.
Item NO.:
4390492Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYSCompared with standard aftermarket swing drive units, it provides reliable gear engagement, efficient power transfer, and consistent operation during frequent excavation cycles. Designed for OEM/OEM-equivalent replacement supply, it supports bulk procurement and stable compatibility across construction, landscaping, and earthmoving applications.
| Item | Parameter Details |
|---|---|
| Main Part Number | 4390492 |
| Full Product Name | Excavator Upper Swing Drive, Slewing Motor Swing Drive Rotary Unit Swing Drive Motor Slewing Drive Swing Gear |
| Compatible Brand | HITACHI |
| Applicable Excavator Model | EX50U Compact Mini Excavator |
| Application | Upper carriage slewing hydraulic drive system for landscaping, municipal pipeline and small residential construction |
| Raw Material | Medium-strength alloy steel + wear-resistant bronze friction accessories |
| Surface Finish | Matte anti-rust industrial grey coating |
| Operating Temperature Range | -22℃ ~ +58℃ |
| Core Function | Convert medium-low hydraulic pressure into stable light-medium slewing torque to rotate excavator upper body for small earthmoving, trenching and garden renovation projects |
| Product Condition | 100% New Aftermarket / OEM Replacement / Remanufactured Optional |
| Export Packaging | Standard lightweight wooden case / Reinforced export carton / Neutral packing / Customized small-package export box |
Provides smooth and controlled upper structure rotation.
Helps maintain consistent torque output and operating efficiency.
Designed for reliable performance in compact excavator applications.
Matches 4390492 specifications for EX50U systems.
FAQ
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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