For DX300-9, DX300, and DX340 excavators operating in construction, quarrying, and heavy earthmoving environments, a reliable swing reduction drive is essential for maintaining smooth upper structure rotation, strong torque output, and stable machine productivity. Heavy-duty excavation requires a durable gearbox system capable of handling repeated swing cycles, high impact loads, and demanding working conditions. RITO Swing Reduction Drive 130426-00017 DX300-9 DX300 DX340 Excavator Hydraulic Swing Gearbox Reducer Assembly Unit provides efficient hydraulic power reduction, stable rotary transmission, and dependable slewing performance for large excavator applications. The 130426-00017 swing gearbox is identified for Doosan DX300-9 and related DX300 series excavator swing drive systems.
Item NO.:
130426-00017Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time:
In StockDesigned for professional excavator repair and replacement supply, this hydraulic swing reducer assembly delivers consistent power transfer and reliable compatibility for Doosan heavy excavator fleets. It is an OEM-equivalent replacement solution for equipment distributors, maintenance workshops, and fleet operators who require durable swing drive components to reduce downtime, restore slewing efficiency, and maintain stable operation during continuous heavy-load work cycles. The 130426-00017 assembly is commonly categorized as a swing reduction gearbox / rotary reducer unit used for DX300 series excavator applications.

| Part Number | 130426‑00017 / 130426‑00017 |
|---|---|
| Part Name | DX300‑9 DX300 DX340 Excavator Swing Reduction Drive Hydraulic Swing Gearbox Reducer Assembly Unit |
| Compatible Brand | DOOSAN |
| Applicable Models | DX300‑9, DX300, DX340 Heavy‑Duty Construction Excavator |
| Application | Hydraulic drive system for excavator upper body slewing; widely applied in municipal engineering, highway construction, quarry excavation and bulk material stacking work |
| Material | High‑strength forged alloy steel + heavy‑load wear‑resistant bronze friction parts |
| Product Color | Matte anti‑rust industrial metallic gray |
| Working Temperature | -22℃ ~ +58℃ |
| Key Function | Convert hydraulic pressure into stable slewing torque to drive upper carriage rotation for infrastructure and earthmoving projects |
| Condition | 100% New, Aftermarket / OEM Equivalent Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Provides strong rotary force and smooth speed reduction for DX300 and DX340 excavator upper structure rotation.

Converts hydraulic motor power through the reduction gearbox to achieve controlled and precise swing movement.

Built with high-strength internal gear components to withstand vibration, impact loads, and long operating cycles in demanding environments.

Matches 130426-00017 specifications for DX300-9, DX300, and DX340 excavator hydraulic swing drive systems.

FAQ
Q: What are the common symptoms of a DX300 swing reduction gearbox problem?
A: Slow swing response, reduced rotation force, abnormal gearbox noise, vibration, and unstable upper structure movement may indicate internal component wear.
Q: How does the 130426-00017 swing reducer improve DX300 excavator operation?
A: It reduces hydraulic motor speed while increasing torque output, helping the excavator achieve smoother and more powerful swing movement.
Q: What should buyers confirm before ordering a 130426-00017 gearbox assembly?
A: Customers should verify the excavator model, original part number, gearbox configuration, mounting requirements, and working environment.
Q: Why do contractors prefer complete hydraulic swing reducer assemblies?
A: A complete unit simplifies replacement, reduces repair time, and helps restore reliable machine performance with improved installation efficiency.
Q: What quality options are available?
A: We provide original, OEM and high-quality aftermarket versions with stable supply capability.
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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