A faulty relief valve triggers system overloads, shortened component life, and expensive emergency repairs, crippling productivity. Solve: The RITO 4674564/4469379 Main Relief Valve is engineered for ZX450 excavator hydraulic systems, delivering OEM-grade stability, precise pressure control, and robust durability to eliminate unplanned downtime.
Item NO.:
4674564Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSGeneric valves leak, lose pressure, or fail prematurely, increasing operational costs and risking project delays. Solve: The RITO ZX450 Relief Valve offers factory-direct pricing, strict quality control, and wide compatibility with Hitachi ZX450/460/500 models, ensuring long-term reliability and maximum ROI.

| Part Number | 4674564, 4469379 |
|---|---|
| Part Name | High Pressure Relief Valve |
| Compatible Brand | Hitachi |
| Applicable Models | Hitachi ZX450, ZX460, ZX500, ZX520 |
| Application | Excavator hydraulic system |
| Material | High‑strength alloy steel |
| Product Color | Silver Metallic or Steel Gray |
| Working Temperature | -40°C to +120°C |
| Key Function | Main pressure relief, hydraulic system overload protection, pressure stabilization |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Maintains consistent hydraulic pressure (up to 350 bar) under extreme loads, preventing system overload and ensuring stable excavator performance.

Crafted from high‑grade alloy steel with precision‑machined components, resisting wear, corrosion, and fatigue in mining and construction environments.

Direct replacement for Hitachi 4674564/4469379; fits ZX450, ZX460, ZX500, and ZX520 excavators without modifications.


FAQ
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
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