Facing swing gearbox wear, hydraulic instability, or rotary drive failure in EX800H-5 fleets? For mining contractors, heavy equipment wholesalers, and service teams, unexpected downtime in large excavators can significantly affect production schedules and increase maintenance expenses. RITO Swing Device Assembly 4346149 EX800H-5 provides stable torque transmission and efficient hydraulic-to-mechanical conversion for dependable heavy-duty swing operation.
Item NO.:
4346149Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSCompared with standard aftermarket swing devices, it improves gear meshing accuracy, reduces internal clearance, and maintains stable performance during continuous high-load excavation cycles. Designed for OEM/OEM-equivalent supply, it supports bulk procurement and reliable compatibility across mining, quarrying, and large-scale earthmoving applications.

| Part Number | 4346149 / 9174425 / 9134738 |
|---|---|
| Part Name | Excavator Swing Device Assembly, Swing Reduction Gearbox & Slewing Drive Motor Unit |
| Compatible Brand | HITACHI |
| Applicable Models | EX800H-5 Large Mining Excavator |
| Application | Large mining excavator upper body slewing rotary hydraulic drive system |
| Material | Thick high-strength alloy steel + heavy-duty wear-resistant bronze friction accessories |
| Product Color | Matte anti-rust industrial metallic gray |
| Working Temperature | -22℃ to +58℃ |
| Key Function | Convert high-pressure heavy hydraulic power into stable ultra-heavy slewing torque to drive excavator upper body rotation for mountain stripping, hard rock excavation and large aggregate loading mining projects |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Thick Wooden Case / Reinforced Export Carton / Neutral Packing / Customized Mine-Grade Export Package |

Ensures smooth swing rotation under heavy-load working conditions.

Improves energy transfer from hydraulic system to swing mechanism.

Built for continuous operation in harsh mining environments.

Matches 4346149 / 9174425 / 9134738 specifications for EX800H-5 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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