For DX255 and DX260 excavators operating in construction, quarrying, mining support, and heavy earthmoving environments, a reliable swing gearbox is essential for maintaining smooth rotation, accurate positioning, and strong torque output. Continuous heavy-duty operation requires a durable planetary reduction system that can withstand repeated loads and demanding working conditions. RITO K1004037A DX255 DX260 Excavator Swing Gearbox Hydraulic Swing Drive Rotary Reducer Unit provides efficient hydraulic power reduction, stable torque transmission, and dependable rotary performance for excavator swing applications. The K1004037A swing gearbox is commonly associated with Doosan DX255LC and DX260 excavator swing reduction systems and uses a planetary gear arrangement.
Item NO.:
K1004037AOrder(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockDesigned for professional excavator maintenance and replacement supply, this hydraulic rotary reducer assembly delivers consistent power transfer and reliable compatibility for Doosan medium-to-large excavator fleets. It is an OEM-equivalent replacement solution for equipment distributors, repair workshops, and fleet operators who require durable swing drive components to reduce downtime, restore slewing efficiency, and maintain stable operation during continuous working cycles. The K1004037A part number is also referenced as a DX255/DX260 swing reduction gear assembly in aftermarket supply channels.
| Part Number | K1004037A / K1004037A |
|---|---|
| Part Name | Excavator Swing Gearbox Hydraulic Rotary Drive Reduction Reducer Unit |
| Compatible Brand | DOOSAN |
| Applicable Models | Compatible Doosan excavator models |
| 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 smooth speed reduction and stable torque output for DX255 and DX260 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 K1004037A specifications for Doosan DX255LC and DX260 hydraulic swing drive systems.
FAQ
Q: What are the common causes of K1004037A swing gearbox wear?
A: Long-term heavy operation, insufficient lubrication, hydraulic contamination, gear wear, and excessive impact loads can affect gearbox service life.
Q: How does the K1004037A rotary reducer improve DX260 excavator performance?
A: It reduces hydraulic motor speed while increasing output torque, helping the excavator achieve smoother and more powerful swing operation.
Q: Which excavator models are compatible with the K1004037A swing gearbox?
A: The K1004037A swing reduction gearbox is commonly used for Doosan DX255LC and DX260 excavator swing drive applications. Buyers should confirm exact machine specifications before ordering.
Q: Why choose a complete swing gearbox assembly for excavator repair?
A: A complete replacement unit simplifies installation, 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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