GVO 4289603 Rotary Hydraulic Pump Valve Main Control Relief Valve Pressure Relief Valve Safety Valve for EX200-3 220-3 Excavator

GVO 4289603 Rotary Hydraulic Pump Valve Main Control Relief Valve Pressure Relief Valve Safety Valve for EX200-3 220-3 Excavator

 Key attribute

Product profile

• Precisely manages hydraulic fluid pressure and flow direction, ensuring optimal performance in heavy-duty operations.
• As the main relief valve, it protects the main pump, control valves, cylinders, and hydraulic lines from damage caused by pressure spikes or overloads.
• Ensures safe, reliable machine operation.
• Manufactured from high-strength steel/aluminum alloy with corrosion-resistant properties.
• Withstands harsh construction environments and extends service life.
• Threaded connections optimized for rapid assembly, reducing maintenance and replacement time.

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GVO Value

Why Choose GVO

Factory-Direct Supply
No middlemen. Better prices without compromising quality.

Extensive Inventory
Over 1,000 part numbers in stock, covering common and urgent requirements.

Major Brand Compatibility
Komatsu, Catt, Kobelco, Hitachi, VolvOo, Hyundai, Doosan, Sany, XCMG, JCB, Case, and more.

Precision-Tested Quality
Every part is inspected and performance-tested before shipment.

Fast Global Shipping
Reliable delivery to customers in over 30 countries and regions.

Responsive Support
We help confirm models, avoid wrong purchases, and stay available after the sale.

Product Categories

Hydraulic Parts
Hydraulic pumps, gear pumps, relief valves, throttle motors, and more.

Electrical Parts
Sensors, solenoid valves, regulators, wiring harnesses, and more.

Engine Parts
Engine components for excavators and heavy machinery.

Quality You Can Trust

At GVO, quality is not a step — it is our starting point. Raw materials are inspected before production. Manufacturing processes are monitored in real time. Finished products must pass performance and durability tests before shipment. Every part is checked again before shipping.

We do not compromise on quality, because we know a failed part costs you far more than the part itself.

Trusted by Customers Worldwide

Whether you are a distributor, a construction team, a repair shop, or an individual machine owner, no matter the order size, we treat everyone the same.

Our products are exported to Asia, Africa, Europe, and the Americas.