Construction crews operating Kobelco SK140-8 excavators regularly report deteriorating swing accuracy, unsteady upper-structure motion, and declining hydraulic drive performance during repetitive loading cycles. The YY32WO0004F1 swing gearbox assembly tackles these issues, delivering renewed slewing precision and reliability.
Item NO.:
YY32W00004F1Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu, GuangzhouLead Time：
In StockConstructed to OEM-comparable quality standards as a straightforward bolt-in replacement unit, the YY32W00004F1 consistently provides steady high-torque slewing action, limits internal fluid loss, and extends operational lifespan between overhauls.
| Part Number | YY32W00004F1 |
|---|---|
| Part Name | SK140-8 Excavator Swing Gearbox Assembly |
| Compatible Brand | KOBELCO |
| Applicable Models | SK140-8, SK140, SK135 Excavator |
| Application | Excavator upper structure slewing hydraulic drive system |
| Material | High-strength forged alloy steel housing |
| Product Color | Matte industrial gray with anti-rust coating |
| Working Temperature | -25°C~+60°C |
| Key Function | Converts high-pressure hydraulic fluid into controlled rotary torque |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Provides powerful and stable rotary force for SK140-8, SK140, SK135 excavator upper structure rotation and swing operations.
Converts hydraulic pressure into controlled rotary movement for smooth and precise swing operation.
Provides stable speed reduction, increased torque output, and efficient power transmission under heavy-duty excavation conditions.
Matches YY32W00004F1 specifications for KOBELCO SK140-8 series excavator hydraulic swing systems.
FAQ
Q: What are the common symptoms of a failing YY32W00004F1 swing gearbox?
A: Watch for unresponsive or uneven swing function, the superstructure continuing to rotate after the control stick centers, harsh grinding or rattling from the drive casing, hydraulic oil misting from shaft seals, and progressive loss of rotary power.
Q: What should be checked before installing the YY32W00004F1?
A: Confirm the hydraulic oil achieves ISO 4406 18/16/13 cleanliness rating at minimum, validate the main circuit relief pressure against Kobelco OEM data, ensure the mounting pad is level and threaded bores are free of debris, and flush the entire hydraulic loop.
Q: Is this YY32W00004F1 a genuine OEM or aftermarket part?
A: This is a 100% new aftermarket assembly manufactured to OEM specifications. RITO HYDRAULIC is a listed supplier to major Chinese excavator OEMs and Fortune 500 companies.
Q: How to confirm the YY32W00004F1 fits my excavator model?
A: Cross-check your existing part number against YY32W00004F1. This assembly fits SK140-8, SK140, SK135 excavators. Contact our technical team with your serial number for compatibility confirmation.
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
Wholesale/agent/mining clients face frequent downtime, high maintenance costs, and poor part compatibility in excavator hydraulic systems. Vibration, misalignment, and harsh mining environments destroy standard couplings, delaying projects and eroding profits. RITO YN15V00017S010 flexible coupling absorbs shock, compensates misalignment, and fits major excavator models—ideal for bulk/agency orders.
View More
Frequent downtime, poor part compatibility, and inconsistent quality plague excavator fleet operators, wholesalers, and mine clients, raising maintenance costs and delaying projects. RITO Drive Shaft Pump Shaft YN15V00017S009 addresses these issues with forged steel construction, precise dimensional accuracy, and strict quality control, ensuring reliable power transmission in harsh mining and construction environments.
View More
YN53D00008S009 sun gear shaft solves core pain points with OEM-grade precision, perfect fit for Kobelco excavators, cutting maintenance costs & downtime risk.
View More
Uneven torque transmission or premature wear in excavator final drives can reduce machine mobility and increase downtime.
View More
Unplanned downtime due to swing gearbox failure can halt entire mining operations. The YN32W01058F1 Planet Carrier is the ultimate solution for worn or fractured assemblies. Specifically engineered for SK200-8 and SK210-8 excavators, it restores precise rotation and torque efficiency instantly.
View More
Continuous swing impact and uneven rotational loading can gradually damage the internal carrier system of the reduction gearbox, leading to unstable upper-structure rotation and abnormal drivetrain stress. YN32W01009P1 planet carrier assembly is engineered for Kobelco SK200-8, SK210-8, and SK250-8 excavators, supporting balanced torque transfer inside the swing reduction mechanism during demanding excavation operations.
View More
Excavator track adjuster failures often cause costly project downtime. Weak grease valves leak under extreme high pressure, risking master track links throwing off or breaking chains during mining. Avoid sub-par aftermarket parts that ruin heavy machinery and disrupt fleet schedules. 2444P803 solves this entirely.
View More
Stripped reduction gears and worn motor shafts paralyze excavator rotational control, freezing on-site productivity. Cheap aftermarket assemblies lack the muscular torque retention needed for heavy sloping work, causing violent upper-frame shaking, rapid seal blowouts, and severe revenue loss.
View MoreLeave A Message
Scan to wechat :
