The PWR 4.25 x 4.5 x 0.375 9400 Piston Wear Ring by Freudenberg-NOK is engineered for optimal performance in hydraulic applications. This wear ring features precise dimensions of 4.25 inches in diameter and 0.375 inches in thickness, ensuring a snug fit and effective sealing. Constructed from high-quality materials, it offers excellent resistance to wear and tear, enhancing the longevity of your hydraulic systems. Designed to meet industry standards, this piston wear ring is compatible with various hydraulic systems, providing reliable operation under pressure. Ideal for use in demanding environments, it helps maintain system efficiency and reduces the risk of leaks.