For DX80, DX80K, and DX85 excavators operating in construction, landscaping, and general earthmoving applications, a dependable swing system is essential for smooth rotation, accurate positioning, and efficient machine productivity. Continuous excavation cycles require a durable reduction gearbox capable of delivering stable torque output and reliable rotary control. RITO K1042873 DX80 DX80K DX85 Excavator Swing Gearbox Hydraulic Swing Drive Rotary Reducer Assembly Unit provides efficient hydraulic power transmission, smooth speed reduction, and dependable slewing performance for compact excavator operations. The K1042873 swing gearbox is commonly associated with Doosan DX80 series excavator swing reduction applications.
Item NO.:
K1042873Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time:
In StockDesigned for excavator maintenance and replacement supply, this hydraulic swing drive reducer assembly delivers consistent power transfer and reliable compatibility for Doosan compact excavator fleets. It is an OEM-equivalent replacement solution for equipment distributors, repair workshops, and fleet operators seeking durable swing components that help reduce downtime, restore machine stability, and maintain reliable operation under demanding working conditions. The K1042873 part number is referenced for Doosan DX80 and related swing gearbox applications.

| Part Number | K1042873 / K1042873 |
|---|---|
| Part Name | DX80 DX80K DX85 Excavator Swing Gearbox Hydraulic Swing Drive Rotary Reducer Assembly Unit |
| Compatible Brand | DOOSAN |
| Applicable Models | DX80, DX80K, DX85 Small‑Medium Construction Excavator |
| Application | Hydraulic drive system for excavator upper body slewing; widely applied in municipal engineering, landscaping, pipeline laying and bulk material stacking work |
| Material | High‑strength forged alloy steel + medium‑light‑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 urban infrastructure and earthmoving projects |
| Condition | 100% New, Aftermarket / OEM Equivalent Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Provides smooth speed reduction and reliable torque output for DX80 series excavator upper structure rotation.

Converts hydraulic motor power through the reduction gearbox to achieve precise and controlled upper structure rotation.

Built with strong internal gear components to withstand repeated loads, vibration, and long operating cycles.

Matches K1042873 specifications for DX80, DX80K, and DX85 excavator hydraulic swing drive systems.

FAQ
Q: What are the common causes of DX80 swing gearbox performance issues?
A: Long-term heavy operation, gear wear, insufficient lubrication, hydraulic contamination, and excessive impact loads can affect reducer performance.
Q: How does the K1042873 rotary reducer support DX80 excavator operation?
A: It reduces hydraulic motor speed while increasing torque output, helping the excavator achieve smoother and more controlled upper structure rotation.
Q: What information should buyers provide before ordering a DX80 swing gearbox?
A: Customers should confirm the excavator model, original part number, gearbox configuration, mounting specifications, and application requirements.
Q: Why choose a complete swing reducer assembly for excavator repair?
A: A complete assembly simplifies replacement, reduces maintenance time, and helps restore reliable swing system performance more efficiently.
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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