4640118 ARM Seal Kit for Hitachi Excavators ZAXIS330/360/370
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 Arm Cylinder is critical for the machine’s reach and digging depth. Our ARM SEAL KIT, often cross-referenced with OEM part number 4640118 or 4649051, is the reliable, factory-direct solution for wholesale buyers seeking superior quality and value.
The Critical Need for a Premium 4640118 Arm Seal Kit
The Arm Cylinder is subjected to immense leverage and pressure during every digging cycle. Seal failure in this cylinder can lead to:
1.Arm Drift and Instability: Internal fluid bypass compromises the cylinder’s ability to hold the arm steady, affecting grading precision and safety.
2.Loss of Breakout Force: Reduced hydraulic pressure directly impacts the force available for digging and pulling the arm in, severely impacting productivity.
3.Contaminant Ingress: Failed wiper seals allow dirt and debris to enter the hydraulic system, leading to premature wear of the cylinder rod and bore.
Our 4640118 Arm 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 Arm 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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4640118 (Common Cross-Reference)
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Cylinder Position
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Arm Cylinder
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Rod Diameter
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115 mm
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Bore Diameter
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170 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 ARM 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 4640118 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 ARM SEAL KIT. We provide the quality, precision, and wholesale value that your business demands.
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