Products

Home

Products

Hitachi series

RITO Excavator Upper Swing Drive 4331676 EX25-2 Slewing Motor Swing Drive Rotary Unit Swing Drive Motor Slewing Drive

RITO Excavator Upper Swing Drive 4331676 EX25-2 Slewing Motor Swing Drive Rotary Unit Swing Drive Motor Slewing Drive

Facing swing instability, hydraulic delay, or upper structure wear in EX25-2 compact excavators? For wholesalers, rental fleets, and maintenance workshops, downtime directly affects project efficiency and service reliability. RITO Excavator Upper Swing Drive 4331676 EX25-2 delivers stable torque output and efficient hydraulic-to-rotational conversion for consistent swing performance in compact excavator applications.

Item NO.:
4331676
Order(MOQ):
1
Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPAL
Product Origin:
JAPAN
Lead Time：
2-3 DAYS

Inquire Now

Product Details

Compared with standard aftermarket swing units, it improves gear engagement precision, reduces internal backlash, and ensures smooth operation under frequent start-stop working cycles typical of mini excavators. Designed for EX25-2 systems, it supports OEM/OEM-equivalent supply, bulk procurement, and stable compatibility across landscaping, construction, and rental equipment markets.

Product Specifications

Part Number	4331676
Part Name	Excavator Upper Swing Drive & Slewing Rotary Motor Unit Assembly Swing Drive Motor Slewing Drive
Compatible Brand	HITACHI
Applicable Models	EX25-2 Mini Excavator
Application	Mini excavator upper body slewing rotary hydraulic drive system
Material	High-strength miniature alloy steel + wear-resistant micro bronze friction accessories
Product Color	Matte anti-rust industrial metallic gray
Working Temperature	-22℃ to +58℃
Key Function	Convert high-pressure miniature hydraulic power into stable light slewing torque to drive mini excavator upper body rotation for landscaping digging, municipal small pipeline construction and narrow-site small-scale earthmoving works
Condition	100% New, Aftermarket / OEM Quality
Packaging	Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

Key Features & Advantages

Stable Swing Torque Output

Ensures smooth rotation and precise control in compact machines.

Efficient Hydraulic Conversion System

Improves energy transfer from hydraulic pressure to rotary motion.

Reinforced Compact-Duty Structure

Built for frequent cycling, tight working spaces, and rental use conditions.

OEM-Compatible Assembly Standard

Matches 4331676 specifications for EX25-2 systems.

FAQ

Q: What causes unstable swing response in EX25-2 upper swing drive systems?
A: It is commonly caused by hydraulic pressure fluctuation, internal gear wear, or insufficient lubrication.

Q: What should be checked before installing a 4331676 swing drive assembly?
A: Verify hydraulic oil cleanliness, confirm mounting alignment, and ensure stable system pressure.

Q: How can abnormal noise in a compact swing drive be identified?
A: It is often related to bearing wear, gear pitting, or uneven hydraulic flow.

Q: What working conditions most affect EX25-2 swing system lifespan?
A: Frequent stop-start operation, poor filtration, abrasive dust exposure, and overload use significantly reduce durability.

Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies

Related Tags :

4331676

Swing Motor

Hitachi Swing Motor

EX25-2 Swing Motor

Swing Motor Assembly

Excavator Slewing Motor

Leave A Message

If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Subject : RITO Excavator Upper Swing Drive 4331676 EX25-2 Slewing Motor Swing Drive Rotary Unit Swing Drive Motor Slewing Drive

Related Products

RITO Excavator Hydraulic Pilot Control Valve ZX350 ZX330 ZX130LCN-3 for HITACHI

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.

RITO ZAXIS75US-3 ZAXIS85USB-3 Hydraulic Oil Pump 9295140 4663831 for Hitachi Excavator

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.

RITO 9285566 9285685 9290597 9290598 ZAXIS120-3 Excavator Main Hydraulic Pump Assy

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.

RITO High Quality High Pressure Pump ZAXIS200-3 Excavator Hydraulic Main Pump Assembly 9262319 9262320

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.

RITO Hydraulic Piston Pump 9257345 9257346 Excavator Main Pump for Hitachi ZAXIS270-3

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.

RITO ZAXIS650LC-3 Hydraulic Pump 9254122 4635645 9254123 0005271 for Heavy Excavator

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.

RITO ZAXIS600 Excavator Hydraulic Main Pump 9197075 0003954 Hydraulic System Parts

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.

RITO High Performance Hydraulic Main Pump 9195239 9195237 for Hitachi ZAXIS270 ZX270LC ZX280 Excavator Spare Parts

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.