The YNF17428 relief valve (3237464) is a critical hydraulic safety component used in excavator boom circuits, responsible for controlling and releasing excess pressure in the main and secondary boom hydraulic lines. When hydraulic pressure rises to unsafe levels, the valve automatically opens to prevent cylinder damage, hose rupture, and hydraulic failure.
Manufactured with high-precision machining and hardened alloy steel, the YNF17428 valve delivers reliable and consistent pressure control even under continuous heavy-duty operation. Its OEM-equivalent design ensures proper pressure calibration, fast response time, and long-term durability, making it suitable for demanding construction environments.
This relief valve is widely used by repair centers, fleet maintenance providers, and aftermarket distributors who require stable supply, competitive pricing, and high-quality hydraulic components. Replacing worn or malfunctioning relief valves helps restore boom performance, extend system life, and prevent costly downtime.
