4640107 Boom Cylinder Seal Kit for Hitachi Excavators ZAXIS330 ZAXIS360 ZAXIS370
As a specialized manufacturer of excavator hydraulic seal kits, we provide high-precision, factory-grade replacements for the heavy-duty Hitachi ZAXIS330, ZAXIS360, and ZAXIS370 series excavators. The Boom Cylinder is the primary lifting component, bearing the machine’s heaviest loads. Our BOOM SEAL KIT, often cross-referenced with OEM part number 4640107, is the reliable, factory-direct solution for wholesale buyers seeking superior quality and value.
The Critical Need for a Premium 4640107 Boom Seal Kit
The Boom Cylinder operates under extreme, sustained pressure to lift and position the arm and bucket. Seal failure in this cylinder can lead to:
1.Boom Drift and Instability: Internal fluid bypass compromises the cylinder’s ability to hold the boom steady, creating safety hazards and hindering precise operation.
2.Hydraulic Fluid Loss: External leaks are costly, messy, and require immediate machine downtime for fluid replenishment and repair.
3.Reduced Lifting Capacity: Loss of pressure directly translates to a significant reduction in the excavator’s primary lifting power, severely impacting site productivity.
Our 4640107 Boom Seal Kit is a complete, multi-component solution engineered for maximum durability and sealing performance, restoring the cylinder to its original specifications.
Technical Specifications and Wholesale Advantage
This seal kit is precision-matched to the Boom Cylinder specifications of the specified Hitachi models:
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Key Specification
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Detail
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OEM Part Number
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4640107 (Common Cross-Reference)
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Cylinder Position
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Boom Cylinder (LH & RH)
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Rod Diameter
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105 mm
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Bore Diameter
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150 mm
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Applicable Models
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Hitachi ZX330, ZX350, ZX360, ZX370 (and LC/H/K variants)
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Wholesale Benefits: We understand the needs of distributors and large maintenance companies. By sourcing the ZX-ZAXIS330 ZAXIS360 ZAXIS370 BOOM SEAL KIT directly from our factory, you benefit from:
•Direct Quality Control: We control the entire production process, ensuring every seal meets stringent quality standards for material composition (e.g., high-performance PU and NBR) and dimensional accuracy.
•Competitive Bulk Pricing: Factory-direct sales eliminate unnecessary markups, providing you with the best possible wholesale price point for the 4640107 seal kit.
DJF: Your Reliable Source for Hitachi Seal Kits
For reliable, high-performance hydraulic repair solutions for heavy machinery, choose our factory-direct ZX-ZAXIS330 ZAXIS360 ZAXIS370 BOOM SEAL KIT. We provide the quality, precision, and wholesale value that your business demands.
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