The G 103862 Genuine CNH Back-Up Ring is designed for the control valve systems of Case 580 K, L, M, and Super series backhoe loaders.
This back-up ring provides essential support to the O-ring, preventing extrusion under high hydraulic pressure and ensuring long-lasting seal performance.
Manufactured to CNH Genuine specifications, it offers excellent durability, chemical resistance, and stability under demanding operating conditions—making it a critical component for maintaining the integrity of the control valve sealing system.
Compatible Models
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Case 580 K
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Case 580 K Series 2
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Case 580 K Series 3
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Case 580 Super K
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Case 580 L
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Case 580 L Series 2
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Case 580 Super L
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Case 580 Super L Series 2
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Case 580 M
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Case 580 Super M
Features & Benefits
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Supports O-ring under high hydraulic pressure
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Prevents O-ring extrusion and premature failure
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Ensures proper sealing and stable hydraulic performance
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Improves control valve lifespan and reliability
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CNH Genuine specification for precise fitment
G 103862(CNH 原装)控制阀 Back-up Ring 支撑环,适用于 Case 580 K、L、M 及 Super 系列挖斗装载机的液压控制阀系统。
Back-up Ring 的主要作用是支撑 O-ring,防止其在高油压下被挤出,从而保持密封效果稳定并延长使用寿命。
此支撑环依照 CNH 原厂标准制造,具备耐压、耐油、耐磨损特性,是维持控制阀密封系统可靠性的关键组件。
适用机型
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Case 580 K
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Case 580 K Series 2
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Case 580 K Series 3
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Case 580 Super K
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Case 580 L
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Case 580 L Series 2
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Case 580 Super L
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Case 580 Super L Series 2
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Case 580 M
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Case 580 Super M
产品优势
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保护 O-ring,避免高压挤出
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提高密封稳定性,减少泄漏
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增强控制阀耐久性与可靠性
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符合 CNH 原厂规格,尺寸精准
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适用于高负荷、高油压工况




