Heavy construction crews operating Hitachi ZX200-5G excavators frequently encounter deteriorating upper-structure rotation accuracy, unpredictable swing movement response, and gradual hydraulic performance drop-off over extended shift cycles. The 4371768 swing motor assembly brings back sharp slewing behavior and sustained output on heavy-duty job sites.
Item NO.:
4371768Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockBuilt to OEM-equivalent standards for straightforward bolt-in replacement, the 4371768 ensures dependable high-torque rotary output, minimizes internal fluid bypass, and extends service life between overhauls - helping parts distributors and independent repair shops slash operational downtime.
| Part Number | 4371768 |
|---|---|
| Part Name | ZX200-5G Excavator Swing Gearbox Assembly |
| Compatible Brand | HITACHI |
| Applicable Models | ZX200-5G, 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 ZX200-5G, 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 4371768 specifications for HITACHI ZX200-5G series excavator hydraulic swing systems.
FAQ
Q:What symptoms indicate a failing swing motor on a ZX200-5G excavator?
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. These symptoms generally signal internal degradation of the 4371768 rotary group or seal failure.
Q:What preparation work is essential before fitting a replacement 4371768 unit?
A:Ensure hydraulic fluid cleanliness meets or exceeds ISO 4406 18/16/13 standards, verify main relief pressure corresponds to Hitachi factory parameters, check the mounting face for flatness and clean all threaded ports, and execute a full hydraulic circuit flush to eliminate any contamination.
Q: Is this 4371768 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 4371768 fits my excavator model?
A: Cross-check your existing part number against 4371768. This assembly fits ZX200-5G, 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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