Products

340812 Excavator Front Cylinder Block with Valve Plate Hydraulic Pump Rotating Group for Hitachi ZAX400 ZAX470 SK400 E330D K5V200 Parts

Facing frequent hydraulic downtime? The 340812 Front Cylinder Block is engineered for extreme mine sites, resolving common pressure leaks and efficiency losses. By integrating this high-precision rotating group, wholesalers and fleet managers ensure long-term stability for heavy-duty excavators.

  • Item NO.:

    340812
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

This K5V200 series component offers superior wear resistance compared to standard aftermarket parts. Optimized for the ZAX400, ZAX470, and E330D, it minimizes friction in high-load scenarios, making it an essential investment for reducing maintenance costs and operational risk.

340812 Cylinder Block&Valve Plate Front

 
Product Specifications

Part Number  340812
Part Name Hydraulic Pump Cylinder Block
Compatible Brand Tongmyung
Applicable Models Hitachi ZAX400, ZAX470, SK400, E330D
Application Excavator hydraulic system
Material High‑strength Alloy Steel
Product Color Metallic Silver
Working Temperature -20°C to 120°C
Key Function Pressure Generation and Fluid Distribution
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

OEM-Grade Precision

Manufactured to exact tolerances to ensure a perfect fit with the valve plate, eliminating internal leakage and restoring full hydraulic power.

Leak-Free

High-Wear Resistance

Built with premium bimetal materials to withstand high-pressure friction, significantly extending the service life in harsh mining environments.

Direct Fitment

Wide Compatibility

Seamlessly replaces parts in K5V200 pumps, specifically designed for heavy models like the Hitachi ZAX470 and Caterpillar E330D.

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: Which failure symptoms suggest I need to replace the cylinder block?
A: Common indicators include a sudden drop in hydraulic pressure, unusual whining noises from the pump, and increased oil temperature. If the valve plate surface shows scoring or "smearing," the cylinder block must be replaced to prevent catastrophic pump failure.
 
Q: What are the critical technical requirements during installation?
A: Cleanliness is paramount; ensure the hydraulic system is flushed to remove contaminants. The mating surface between the block and valve plate must be lubricated with clean hydraulic oil before assembly to prevent dry-start friction damage.
 
Q: How do I confirm this part fits my specific machine or pump?
A: Please verify that your pump is a Kawasaki K5V200 series. This 340812 block is specifically designed for high-flow configurations found in Hitachi ZAX450 and CAT 330D models. Comparing your existing part number is the most reliable method.
 
Q: How does this rotating group perform in extreme mining environments?
A: It is engineered for high-altitude and high-heat conditions. The specialized heat treatment allows the block to maintain structural integrity and sealing performance even when the hydraulic fluid reaches the upper limits of its operating temperature.
 
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