Fleet maintenance personnel overseeing Hitachi ZX200-3 excavators deal with declining upper-structure rotary precision and progressive mechanical performance loss over prolonged shift durations. The 9118328 swing gearbox eliminates these shortcomings, restoring responsive slewing behavior.
Item NO.:
9118328Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockProduced to OEM-equivalent precision for seamless bolt-up replacement, the 9118328 ensures steady high-torque rotary motion, restrains internal mechanical loss, and pushes out major service milestones.
| Part Number | 9118328 |
|---|---|
| Part Name | ZX200-3 Excavator Swing Gearbox Assembly |
| Compatible Brand | HITACHI |
| Applicable Models | ZX200-3, ZX200, ZX210 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 ZX200-3, ZX200, ZX210 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 9118328 specifications for HITACHI ZX200-3 series excavator hydraulic swing systems.
FAQ
Q: What are the common symptoms of a failing 9118328 swing gearbox?
A: The most common indicators are labored or jerky swing movements, the cab drifting after the joystick is released, loud grinding or knocking sounds from the swing drive housing, external oil seepage around shaft seals, and a steady decline in rotary force during loaded operations.
Q: What should be checked before installing the 9118328?
A: Verify hydraulic oil cleanliness to ISO 4406 18/16/13 or better, confirm system relief pressure matches factory specifications, inspect mounting surface flatness and bolt-hole alignment, and flush the hydraulic circuit thoroughly to remove metallic debris from the previous failure before installation.
Q: Is this 9118328 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 9118328 fits my excavator model?
A: Cross-check your existing part number against 9118328. This assembly fits ZX200-3, ZX200, ZX210 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
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