The PWR 4.25 x 4.5 x 1.5 9400 Piston Wear Ring by Freudenberg-NOK is designed for optimal performance in hydraulic applications. This wear ring features precise dimensions of 4.25 inches in inner diameter, 4.5 inches in outer diameter, and a thickness of 1.5 inches, ensuring a perfect fit for various piston assemblies. Constructed from high-quality materials, it offers excellent resistance to wear and tear, enhancing the longevity of your hydraulic systems. The wear ring is compatible with a range of hydraulic fluids and operates effectively under high pressure, making it ideal for demanding industrial environments. Its robust design meets industry standards, ensuring reliability and efficiency in operation.