Products

RITO Cylinder Block A10VD43SR Hydraulic Pump Cylinder Block for Excavator Piston Pump Rotary Group Pump Barrel

Internal pressure loss due to a worn A10VD43SR cylinder block leads to sluggish excavator response and excessive fuel waste. For mining fleets, a micro-crack in the pump barrel risks catastrophic hydraulic failure, causing expensive project delays and compromising the entire rotary group's integrity.

  • Item NO.:

    A10VD43SR Cylinder B
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Our high-density A10VD43SR cylinder block is engineered to restore peak volumetric efficiency for A10VD43 hydraulic pumps. With precision-honed bores and superior wear resistance, this core component ensures stable oil flow and extended service life, providing wholesalers with a reliable, cost-effective OEM alternative.

A10VD43SR Cylinder Block

 
Product Specifications

Part Number  A10VD43SR
Part Name Hydraulic Pump Cylinder Block
Compatible Brand Tongmyung
Applicable Models Construction Excavator
Application Excavator hydraulic system
Material High‑strength Alloy Steel
Product Color Steel Gray
Working Temperature -25 to 115 degrees Celsius
Key Function Housing pistons and rotating to generate hydraulic pressure
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Precision-Honed Piston Bores

Every A10VD43SR bore undergoes rigorous finishing to ensure a perfect oil film seal, minimizing friction and internal leakage.

Leak-Free

High-Grade Bimetal Casting

Features a specialized copper-alloy surface for enhanced anti-seizure performance under high-speed and high-pressure rotation.

Direct Fitment

Extreme Pressure Stability

Designed to maintain structural integrity under fluctuating hydraulic loads, preventing pump barrel distortion during heavy lifting.

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 are the key indicators that the A10VD43SR cylinder block needs to be replaced?
A: Excessive heat in the pump housing and a drop in hydraulic speed are primary signs. If the face of the cylinder block shows deep scoring or if there is "chatter" noise during operation, the A10VD43SR barrel is likely worn beyond tolerance, leading to significant pressure bypass.
 
Q: What technical precautions should be taken during the installation of this pump barrel?
A: It is critical to check the tension of the center spring and ensure the valve plate matches the A10VD43SR block face perfectly. Before startup, fill the pump case with filtered oil to prevent dry-rubbing between the block and the valve plate, which can cause immediate galling.
 
Q: How do I confirm the compatibility of this block with my existing A10VD43 pump?
A: Verify the number of piston bores and the specific "SR" suffix on your pump nameplate. Our A10VD43SR block is specifically designed for the R-rotation (right-hand) configuration; matching the spline count on the drive shaft is also essential for a secure fit.
 
Q: How does this cylinder block perform during 24/7 operations in high-temperature environments?
A: This block is rated for a working temperature of -25 to 115 degrees Celsius. The bimetal construction allows for superior heat dissipation, preventing thermal expansion from seizing the pistons even during continuous high-load cycles in tropical mining climates.
 
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

141634 Cylinder Block
RITO Hydraulic Pump Cylinder Block 141634 EX200-1 EX220-1 HPV116 HMG32 Main Pump Rotating Group Barrel for Excavator

RITO Hydraulic Pump Cylinder Block 141634 is designed for EX200-1, EX220-1, HPV116, and HMG32 main pumps. For distributors and agents: standardized dimensions ensure drop-in replacement, reducing return rates. Mining customers benefit from high-wear resistance, minimizing unplanned pump failures.    

View More
720773 Cylinder Block
RITO Hydraulic Pump Cylinder Block Front 720773 K3V112DT K3V63 K3V140 Excavator Main Pump Rotating Group Assembly for Excavator

This RITO 720773 Cylinder Block Front is a critical core component for K3V112DT, K3V63, and K3V140 excavator hydraulic pumps, forming part of the rotating group assembly. It works with pistons and valve plates to ensure stable pressure generation, precise flow output, and efficient hydraulic performance in construction environments.    

View More
720773 Cylinder Block Front
RITO Hydraulic Pump Cylinder Block Front 720773 Valve Plate K3V112 K3V112DT Excavator for Construction Machinery

Hydraulic efficiency loss in excavators leads to sluggish cycles and high fuel costs. Worn cylinder blocks and valve plates cause internal leakage, paralyzing your fleet. The 720773 and K3V112DT series resolve these critical failures, restoring system pressure for heavy-duty construction demands.

View More
704543A Piston Shoe
RITO Hydraulic Pump Piston Shoe 704543A K3V112DT K3V63 K5V140 Excavator Main Pump Slipper for Construction Machinery

Worn piston shoes cause catastrophic internal friction and pressure loss in main pumps, leading to expensive machine downtime. The 704543A slipper addresses these vulnerabilities. Engineered for high-load mining, it prevents "slipper tilt" and scoring that often plagues inferior low-cost parts.

View More
641202 Valve Plate
RITO Hydraulic Pump Valve Plate 641202 for Komatsu PC200-7 PC200-8 MB85 Excavator Main Pump

The RITO Hydraulic Pump Valve Plate 641202 is designed for high-efficiency and durable performance in demanding excavator applications such as the Komatsu PC200-7, PC200-8, and MB85. Whether for wholesale or direct mining applications, this valve plate improves hydraulic flow and pump reliability. Unlike traditional valve plates, it ensures a longer operational lifespan, reducing maintenance costs and downtime. This makes it a critical component for heavy-duty machinery in challenging environments. The 641202 enhances performance by providing superior seal integrity and operational stability, crucial for minimizing operational disruptions.     

View More
648012 Friction Plate-Bronze
RITO Bronze Friction Plate 648012 friction Plate-Bronze for Komatsu PC160-7 JCB JS160 Takeuchi TB135 MSF85P

Facing frequent downtime & high replacement costs on excavator friction parts? RITO Bronze Friction Plate 648012 solves core pain: unstable friction, rapid wear & poor heat resistance. Ideal for wholesalers, agents & mine clients; fits Komatsu PC160-7, JCB JS160, Takeuchi TB135, MSF85P. Delivers consistent torque, lower maintenance & longer service life.

View More
648013 Separation Plate-Steel
RITO Steel Separation Plate 648013 separation plate-steel for Komatsu PC160-7 JCB JS160 Takeuchi TB135 MSF85P

Generic separators fail in heavy mining/construction, causing premature wear, hydraulic system damage, and costly delays. Solution:RITO Steel Separation Plate 648013 delivers OEM-grade durability, perfect fit for Komatsu PC160-7, JCB JS160, Takeuchi TB135, MSF85P, and reliable aftermarket support to cut costs and maximize uptime.

View More
204-2683 Hydraulic Pump Actuator
RITO Hydraulic Pump Actuator 204-2683-DM Hydraulic Pump Lifter for Caterpillar CAT E320C SBS120 SBS140

Mine/wholesalers/agents face unplanned downtime, poor part compatibility, and high maintenance costs on CAT E320C/SBS120/SBS140. Generic actuators leak, fail fast, and delay projects, eroding profits. RITO 204-2683-DM is OEM-grade, direct-fit, and built for harsh mining/construction. It cuts downtime, lowers costs, and boosts resale value.

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