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RITO Excavator Swing Motor Repair Kit 39Q6-11180 39Q611180 Hydraulic Pump Cylinder Block HX520L BLOCK-CYLINDER for Hyundai

Hydraulic pressure loss in swing motors leads to sluggish rotation and costly downtime for HX520L fleets. Worn cylinder blocks cause internal leakage and pump seizure, halting mining production. The 39Q6-11180 assembly restores factory precision. This Cylinder Block kit ensures peak slewing torque and efficiency.

  • Item NO.:

    39Q6-11180
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Our 39Q6-11180 features bimetal technology for extreme wear resistance. Ideal for Hyundai HX520L, it offers agents a zero-defect, OEM-standard solution that secures fleet uptime and maximizes procurement ROI.

39Q6-11180 Cylinder Block

 
Product Specifications

Part Number  39Q6-11180 / 39Q611180
Part Name Swing Motor Repair Kit Cylinder Block
Compatible Brand Tongmyung
Applicable Models Hyundai HX520L
Application Excavator hydraulic system
Material High‑strength Alloy Steel
Product Color Steel Grey
Working Temperature -25°C to 105°C
Key Function Maintaining hydraulic pressure and facilitating piston movement in swing motors
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Bimetal Wear Resistance

The 39Q6-11180 block utilizes a high-copper alloy bonded to steel, providing superior friction reduction and heat dissipation for heavy-duty slewing.

Leak-Free

Micro-Precision Finishing

Each cylinder bore and the block face are precision-ground to micron tolerances, ensuring a perfect seal and minimizing internal hydraulic bypass.

Direct Fitment

Direct HX520L Compatibility

Specifically engineered as a drop-in replacement for Hyundai HX520L swing motors, eliminating the need for modifications and reducing installation time.

Rigorous Testing

 Multi-Tier Quality Options

We provide Original, OEM, and Premium Aftermarket grades, allowing distributors to meet diverse client budgets and performance needs.

 

Excavator Hydraulic Part

FAQ


Q: What specific failure symptoms indicate the 39Q6-11180 cylinder block needs replacement?
A: If the HX520L exhibits "swing drift" on slopes, excessive noise during slewing, or a sudden loss of rotation speed as oil temperature rises, the 39Q6-11180 is likely worn. Scoring on the block face allows high-pressure oil to bypass the timing plate, resulting in inefficient torque and increased fuel consumption.
 
Q: What are the critical technical requirements for installing this swing motor block?
A: Cleanliness is paramount; ensure the motor casing is flushed of all metallic debris before installing the 39Q6-11180. The block face and valve plate must be lubricated with clean hydraulic oil. During assembly, verify that the center pin and springs are within spec to maintain proper contact pressure between the block and plate.
 
Q: How do we confirm the 39Q6-11180 is the correct fit for our Hyundai fleet?
A: This part is optimized for the Hyundai HX520L series. Procurement teams should verify the part number 39Q6-11180 against the swing motor nameplate. We provide detailed technical drawings and bore diameter measurements for agents to ensure 100% compatibility before bulk international shipping.
 
Q: How does this repair kit perform in extreme mining or high-heat environments?
A: The 39Q6-11180 is designed for thermal stability. Its bimetal construction handles temperature fluctuations from -25°C to 105°C without losing structural integrity. In high-load mining, the copper-alloy layer prevents the piston from seizing under intense heat, ensuring consistent 24/7 rotation performance in harsh terrains.
 
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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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.

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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.

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