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4640251 HOSE Hitachi parts for ZX850-3, ZX850-3F, ZX870-5G, ZX870H-3, ZX870H-3-HCMC, ZX870H-3F, ZX870H-5G, ZX870LC-5B, ZX870LC-5G, ZX870LCH-5G, ZX870LCR-5G, ZX870R-3, ZX870R-3F

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4640251 HOSE Hitachi parts for ZX850-3, ZX850-3F, ZX870-5G, ZX870H-3, ZX870H-3-HCMC, ZX870H-3F, ZX870H-5G, ZX870LC-5B, ZX870LC-5G, ZX870LCH-5G, ZX870LCR-5G, ZX870R-3, ZX870R-3F

4640251 HOSE for Hitachi Excavators - Premium Hydraulic PerformanceProduct OverviewThe 4640251 HOSE is a genuine Hitachi replacement part, meticulously engineered to meet the stringent demands of heav

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Product Details

4640251 HOSE for Hitachi Excavators - Premium Hydraulic Performance

Product Overview

The 4640251 HOSE is a genuine Hitachi replacement part, meticulously engineered to meet the stringent demands of heavy-duty excavation equipment. This high-quality hydraulic hose is crucial for maintaining the optimal performance and reliability of your Hitachi excavators, ensuring efficient power transmission and fluid flow within the hydraulic system. Designed for durability and precision, it provides a secure and leak-free connection, minimizing downtime and maximizing operational efficiency.

Product Specifications

Part Number: 4640251
Type: Hydraulic Hose
Material: High-grade synthetic rubber with reinforced braiding (e.g., steel wire) for superior pressure resistance and flexibility.
Operating Pressure: Engineered to withstand high hydraulic pressures specific to heavy machinery operation. (Exact pressure rating may vary by specific application, refer to service manual.)
Temperature Range: Designed for optimal performance across a wide range of operating temperatures.
Dimensions: Specific length and diameter to ensure precise fit and function within the designated hydraulic system. (Dimensions are OEM specific.)
Compatibility: Direct OEM replacement for specified Hitachi excavator models.

Key Advantages & Selling Points

Genuine Hitachi Quality: Guarantees perfect fit, form, and function, ensuring optimal system performance and longevity.
Enhanced Durability: Constructed from robust materials designed to resist abrasion, corrosion, and extreme operating conditions, extending service life.
Optimized Performance: Engineered for efficient fluid flow, reducing energy loss and ensuring smooth operation of hydraulic components.
Reduced Downtime: Reliable performance minimizes unexpected failures and costly repairs, keeping your equipment productive.
Safety Assurance: Meets strict safety standards, reducing the risk of hydraulic fluid leaks and associated hazards.

Applicable Equipment

The 4640251 HOSE is specifically designed for the following Hitachi excavator models, ensuring precise compatibility and optimal integration into their hydraulic systems:

ZX850-3
ZX850-3F
ZX870-5G
ZX870H-3
ZX870H-3-HCMC
ZX870H-3F
ZX870H-5G
ZX870LC-5B
ZX870LC-5G
ZX870LCH-5G
ZX870LCR-5G
ZX870R-3
ZX870R-3F

Application Scenarios & Case Studies

These large Hitachi excavators, utilizing the 4640251 HOSE, are powerhouses in various demanding industries, relying on robust hydraulic systems for their heavy lifting and digging capabilities.

Mining Operations: Hitachi ZX850/870 series excavators are extensively used in open-pit mining for overburden removal, ore extraction, and loading massive haul trucks. The reliable hydraulic hoses are critical for the continuous and high-force movements required in these harsh environments.
Case Study: A large iron ore mine in Australia replaced all critical hydraulic hoses on their ZX870H-3 fleet with genuine Hitachi parts, including the 4640251 HOSE. This proactive maintenance significantly reduced hydraulic system failures, leading to a 15% increase in operational uptime and an estimated cost saving of $50,000 annually due to fewer unplanned repairs.
Large-Scale Construction Projects: These excavators are indispensable for major infrastructure projects like dam construction, highway development, and large commercial building foundations. They perform tasks such as mass excavation, trenching for large pipelines, and demolition.
Case Study: During the expansion of a major port, a fleet of ZX870LC-5G excavators was deployed for dredging and land reclamation. The robust hydraulic system, supported by durable hoses like the 4640251, ensured continuous operation even when moving heavy, saturated soil, allowing the project to meet its stringent deadlines.
Quarrying & Aggregate Production: In quarries, these excavators are used for breaking down rock faces, loading crushers, and managing stockpiles. The extreme forces involved demand hoses that can withstand constant pressure cycles and abrasive conditions.
Case Study: A limestone quarry experienced frequent hose bursts on their ZX850-3 excavators, causing significant production delays. After switching to genuine Hitachi 4640251 hoses, the frequency of hydraulic failures dropped by over 80%, leading to more consistent aggregate production and reduced operational costs.

Related & Similar Products

Beyond the 4640251 HOSE, our inventory includes a comprehensive range of genuine Hitachi hydraulic components and related parts to ensure the complete functionality of your heavy machinery. These parts often work in conjunction with the 4640251 HOSE for optimal hydraulic system performance.

Other Hydraulic Hoses (Varying Sizes & Pressures): For different sections of the hydraulic system, such as boom, arm, bucket, swing, and travel circuits.

Applicable Equipment: All Hitachi excavator models, ranging from mini excavators to large mining shovels (e.g., ZX30U, ZX200, EX1200).

Hydraulic Pumps: The heart of the hydraulic system, responsible for generating fluid flow and pressure.

Applicable Equipment: All Hitachi hydraulic excavators (e.g., ZX850-3, ZX470-5G, ZX350LCH-5G).

Hydraulic Cylinders (Boom, Arm, Bucket): Convert hydraulic pressure into linear force for movement.

Applicable Equipment: All Hitachi excavators (e.g., ZX870LC-5G, ZX330-3, ZX210LC-5G).

Control Valves: Direct and regulate the flow of hydraulic fluid to various components.

Applicable Equipment: All Hitachi hydraulic equipment, including excavators, wheel loaders, and dozers.

Hydraulic Filters: Essential for maintaining the cleanliness of the hydraulic fluid, preventing contamination and wear.

Applicable Equipment: All Hitachi machinery with hydraulic systems.

Installation & Maintenance - Common Issues and Solutions

Proper installation and routine maintenance are paramount for the longevity and performance of hydraulic hoses. Addressing common issues proactively can prevent costly breakdowns.

Issue 1: Leaks at Fittings
Cause: Improper torque during installation (under or over-tightening), damaged O-rings or seals, incorrect fitting type, or vibration.
Solution:

Always use a torque wrench to tighten fittings to manufacturer specifications.
Inspect and replace O-rings and seals during installation.
Ensure the correct fitting type is used for the hose and port.
Verify proper hose routing to minimize stress and vibration.

Issue 2: Hose Abrasion/Wear
Cause: Hoses rubbing against machine parts, other hoses, or sharp edges; insufficient clamping or routing.
Solution:

Utilize hose guards, sleeves, or spiral wrap in high-abrasion areas.
Ensure hoses are properly routed with adequate clearance from moving parts.
Use appropriate clamps and hangers to secure hoses and prevent chafing.

Issue 3: Hose Burst/Rupture
Cause: Exceeding maximum operating pressure, kinking, extreme bending radius, age-related material degradation, or external damage.
Solution:

Never operate equipment beyond its specified hydraulic pressure limits.
Ensure hoses are installed with the correct minimum bend radius.
Regularly inspect hoses for cracks, bulges, cuts, or other signs of wear and replace immediately if found.
Protect hoses from falling debris or impacts.

Issue 4: Contamination of Hydraulic System
Cause: Dirty hoses or fittings during installation, using unapproved hydraulic fluids, or neglecting filter changes.
Solution:

Thoroughly clean hoses and fittings before installation.
Use only genuine Hitachi hydraulic fluids and recommended oil types.
Adhere to the manufacturer's schedule for hydraulic filter replacement.

Pro Tip: Always consult your Hitachi excavator's service manual for specific hose replacement procedures, torque specifications, and maintenance intervals. Regular visual inspections are key to identifying potential issues before they escalate into major problems.

For genuine Hitachi parts and unparalleled performance, trust Hitachi-IsuzuParts.com.

Previous: 4640252 HOSE Hitachi parts for ZX650LC-3, ZX670LCH-3, ZX670LCR-3, ZX850-3, ZX850-3F, ZX870-5G, ZX870H-3, ZX870H-3-HCMC, ZX870H-3F, ZX870H-5G, ZX870LC-5B, ZX870LC-5G, ZX870LCH-5G, ZX870LCR-5G, ZX870R-3, ZX870R-3F Next: Factory Direct Sales 4641093 4641092 4703564 4640251 Suitable for Hitschi 890-5A

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