Machine operators running Hitachi ZX120 excavators consistently report compromised rotary control, erratic swing reaction, and gradual hydraulic power deterioration during sustained high-load operations. The 9148922 swing drive unit is purposefully designed to correct these critical deficiencies, reinstating dependable slewing dynamics.
Item NO.:
9148922Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK, PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockManufactured to OEM-equivalent precision for seamless bolt-up replacement, the 9148922 ensures steady high-torque rotary motion, restrains internal mechanical loss, and pushes out major service milestones - equipping global spare parts dealers and heavy construction equipment fleets.
| Part Number | 9148922 |
|---|---|
| Part Name | ZX120 Excavator Swing Gearbox Assembly |
| Compatible Brand | HITACHI |
| Applicable Models | ZX120, ZX120-3, ZX130 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 ZX120, ZX120-3, ZX130 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 9148922 specifications for HITACHI ZX120 series excavator hydraulic swing systems.
FAQ
What early warning signs point to a failing swing motor on ZX120 excavators?
Key indicators include 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 under working loads. These clues typically signal internal fatigue in the 9148922 rotary element or deteriorating seal integrity.
Which verification steps must be carried out before mounting a new 9148922?
Confirm the hydraulic oil achieves ISO 4406 18/16/13 cleanliness rating at minimum, validate the main circuit relief pressure against Hitachi OEM data, ensure the mounting pad is level and threaded bores are free of debris, and flush the entire hydraulic loop to purge any contaminant particles remaining from the failed component.
Q: Is this 9148922 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 9148922 fits my excavator model?
A: Cross-check your existing part number against 9148922. This assembly fits ZX120, ZX120-3, ZX130 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
Optimize your Hitachi excavator's performance with this premium hydraulic joystick pilot control valve, precision-engineered for ZX350, ZX330, and ZX130LCN-3 models. It delivers smooth, accurate handling and rugged durability for demanding job sites.
View More
This RITO 9295140 4663831 Hydraulic Pump is a core power component for Hitachi ZAXIS75US-3 and ZAXIS85USB-3 excavators, responsible for converting mechanical energy into stable hydraulic pressure to drive the arm, bucket, and travel systems. It ensures smooth operation, consistent flow output, and reliable performance under demanding construction and mining conditions.
View More
This RITO 9285566 9285685 9290597 9290598 Hydraulic Pump is a core component for Hitachi ZAXIS120-3 excavators, responsible for converting mechanical energy into stable hydraulic pressure to power the arm, bucket, and travel systems. It ensures smooth operation, precise flow control, and reliable performance in construction and mining environments.
View More
This RITO 9262319 9262320 Hydraulic Pump is a core component for Hitachi ZAXIS200-3 excavators, responsible for converting mechanical energy into stable hydraulic pressure to power the arm, bucket, and travel systems. It ensures smooth operation, precise flow control, and reliable performance in construction and mining environments.
View More
This RITO 9257345 9257346 Hydraulic Pump is a core component for Hitachi ZAXIS270-3 excavators, responsible for converting mechanical energy into stable hydraulic pressure to drive the arm, bucket, and travel systems. It ensures smooth operation, precise flow control, and reliable performance in construction and mining environments.
View More
This RITO 9254122 4635645 9254123 0005271 Hydraulic Pump is a heavy-duty core component for Hitachi ZAXIS650LC-3 excavators, designed to convert mechanical energy into stable, high-pressure hydraulic output for demanding arm, bucket, and travel operations. It ensures smooth power transmission, precise flow regulation, and reliable performance in extreme mining and large-scale construction environments.
View More
This RITO 9197075 0003954 Hydraulic Pump is a heavy-duty core component for Hitachi ZAXIS600 excavators, engineered to convert mechanical energy into stable, high-pressure hydraulic output for arm, bucket, and travel operations. It ensures smooth power transmission, precise flow control, and reliable performance in demanding mining and large-scale construction environments.
View More
This RITO 9195239 9195237 Hydraulic Pump is a core component for Hitachi ZAXIS270 excavators, designed to convert mechanical energy into stable hydraulic pressure to power the arm, bucket, and travel systems. It ensures smooth operation, precise flow control, and reliable performance in construction and medium to heavy-duty working environments.
View MoreLeave A Message
Scan to wechat :
