Products

31Q6-10050 31Q610050 Hydraulic Main Pump Assembly R220-9S R220LC-9S K3V112-9N Excavator MAIN PUMP for Construction Machinery

Frequent pump failures in construction and mining lead to costly downtime and revenue loss. The 31Q6-10050 Main Pump Assembly solves these issues by providing consistent, high-pressure hydraulic power for R220-9S models, ensuring your machinery stays productive in high-intensity jobsites.

  • Item NO.:

    31Q6-10050
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Engineered with K3V112-9N technology, the 31Q6-10050 outperforms generic replacements in heat dissipation and flow stability. For wholesalers and fleet owners, this pump is the critical upgrade needed to reduce maintenance cycles and secure long-term operational reliability.

31Q6-10050 Main Pump

 
Product Specifications

Part Number  31Q6-10050
Part Name Hydraulic Main Pump Assembly
Compatible Brand Hyundai
Applicable Models R220-9S and R220LC-9S Excavators
Application Excavator hydraulic system
Material High-strength Alloy Steel
Product Color Metallic Grey
Working Temperature -20 to 90 degrees Celsius
Key Function Primary Hydraulic Power Transmission
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Optimized Flow Efficiency

Advanced K3V112-9N design maximizes hydraulic output with minimal energy loss, ensuring responsive control and faster cycle times for heavy digging.

Leak-Free

Robust Industrial Construction

Built with high-strength alloy components to withstand extreme pressure fluctuations, specifically tailored for the rigors of mining and quarrying.

Direct Fitment

Seamless OEM Integration

Directly replaces part number 31Q610050 for R220-9S and R220LC-9S series, guaranteeing a 100% precise fit and simplified installation for technicians.

Rigorous Testing

Global Supply Tiering

We offer Original, OEM, and high-performance Aftermarket options to provide flexible procurement strategies for diverse regional markets.
 
 

 

Excavator Hydraulic Part

FAQ


Q: How do I perform a symptom-based fault diagnosis for this pump?
A: If the R220-9S displays sluggish boom movement or a sudden drop in breakout force accompanied by a metallic whining noise, it often indicates internal wear of the valve plate or cylinder block. Monitoring case drain flow can also help identify internal leakage before a total pump failure occurs.
 
Q: What are the essential technical requirements for a successful installation?
A: The entire hydraulic circuit must be flushed to remove metal debris from previous failures. You must prime the 31Q6-10050 by filling the pump case with filtered oil through the top drain port to ensure lubrication during the critical initial startup phase.
 
Q: How do I confirm this pump is the correct procurement match?
A: Verify the part number 31Q6-10050 against your machine's manual and check that your current motor is a K3V112 series. We recommend confirming the regulator type and the number of splines on the input shaft to ensure complete compatibility with your construction machinery.
 
Q: How does this assembly maintain performance in extreme environments?
A: Designed for global mining operations, the 31Q6-10050 uses high-thermal-stability seals that prevent hardening in temperatures up to 90 degrees Celsius. The heavy-duty housing is treated to resist corrosion and maintain structural integrity in both high-humidity and sub-zero environments.

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
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.

Related Products

R320LC-9S R330LC-9S Shaft
RITO Excavator Drive Shaft R300LC 9S R320LC-9S R330LC-9S Hydraulic Pump Shaft PTO Shaft for Excavator Part

This RITO Excavator Drive Shaft PTO Shaft R300LC-9SZ R300LC-9S R320LC-9S R330LC-9S is a key transmission component for Hyundai excavators, responsible for transferring engine power to the hydraulic pump. It ensures stable torque transmission, smooth power delivery, and reliable operation in demanding construction environments.     

View More
31N8-27210 Right joystick
RITO Excavator Right Joystick 31N8-27210 R320LC-7A R330LC-7A R300LC-7 Hydraulic Pilot Control Handle Assembly for Hyundai

This RITO 31N8-27210 Right Joystick Control Handle Assembly is a key control component for Hyundai R320LC-7A, R330LC-7A, and R300LC-7 excavators, designed to transmit precise pilot control signals to the hydraulic system. It ensures smooth operation, accurate response, and stable control of the arm, bucket, and travel functions in construction environments.     

View More
XJBN-00649 Spool valve
RITO Hydraulic Spool Valve XJBN-00649 R320LC-7A R330LC-7A Excavator Main Control Valve for Original Parts

This RITO XJBN-00649 Hydraulic Spool Valve is a critical internal component for the main control valve of Hyundai R320LC-7A and R330LC-7A excavators, designed to precisely regulate hydraulic oil flow and direction within the system. It ensures accurate control response, smooth operation, and stable performance in construction environments.     

View More
XJBN-00650 Spool valve
RITO Hydraulic Spool Valve XJBN-00650 R320LC-7A R330LC-7A Excavator Main Control Valve Original Parts for Hyundai

This RITO XJBN-00650 Hydraulic Spool Valve is a critical internal component for the main control valve of Hyundai R320LC-7A and R330LC-7A excavators, designed to precisely regulate hydraulic oil flow and direction within the system. It ensures accurate control response, smooth operation, and stable performance in demanding construction environments.     

View More
R210-7 Main Relief
RITO Hydraulic Main Relief Valve R210-7 R210-7 R215-7 R220-7 Excavator Main Pressure Relief Valve for Hyundai

This RITO R210-7YLF Hydraulic Main Relief Valve is a critical safety component for Hyundai R210-7, R215-7, and R220-7 excavators, designed to regulate and limit maximum hydraulic pressure within the system. It protects key components from overload, ensuring stable pressure control, smooth operation, and reliable performance in construction environments.  

View More
31N6-17740
RITO Negacon Valve Assembly 31N6-17740 R210-7 R215-7 R220-7 R320LC-7A Excavator Hydraulic Control Valve for Hyundai

This RITO 31N6-17740 Negacon Valve Assembly is a key hydraulic control component for Hyundai R210-7, R215-7, R220-7, and R320LC-7A excavators, designed to regulate negative flow signals and coordinate pump output with system demand. It ensures smooth multi-function operation, optimized power distribution, and improved fuel efficiency in construction environments.

View More
XKAQ-00214 Washer
RITO Flat Washer Thrust Washer XKAQ-00214 Washer for Hyundai R210LC-7 Excavator

Excessive axial play and metal-on-metal friction in excavator joints lead to catastrophic pin wear and structural misalignment. Standard washers often fail under the intense vibration of mining sites. The XKAQ-00214 eliminates these gaps, preventing the costly bore repairs that paralyze your R210LC-7 fleet.

View More
XKAQ-00400 Carrier Assy 1st
RITO 1st Carrier Assembly XKAQ-00400 CARRIER ASSY 1st for Hyundai R330-9 Excavator

Excavator planetary failure forces costly teardowns. XKAQ-00400 eliminates loose pocket wear & cracked bridges seen in weak carriers. Direct-fit for Hyundai R330-9 final drives. Reduce rework claims now.

View More
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.

Leave A Message

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.

Home

Products

whatsApp

contact