The PWR 4 x 4.25 x 0.75 9400 Piston Wear Ring from Freudenberg-NOK is expertly crafted for hydraulic systems requiring precision and reliability. This wear ring measures 4 inches in outer diameter and 4.25 inches in inner diameter, with a thickness of 0.75 inches, making it suitable for various applications. Its design minimizes wear and friction, promoting smoother operation and extending the life of hydraulic components. Built to meet stringent industry standards, this wear ring ensures compatibility and performance in demanding environments. Enhance your hydraulic system's efficiency with this high-quality piston wear ring.