The Kubota RD55167605 Arm Cylinder Assembly is a genuine OEM hydraulic component designed for specific Kubota excavators. This essential part provides the necessary hydraulic power for the arm's movement, ensuring reliable and precise operation. It is a direct replacement for models including the KX080-3, KX080-4, and U55-4. Manufactured to Kubota's high standards, this arm cylinder assembly guarantees optimal performance and durability in demanding working conditions.