The Zetor 931172 Piston Rod Gasket is a genuine OEM component designed for hydraulic cylinders in a wide range of Zetor tractors. This essential sealing part features an inner diameter of 30 mm, an outer diameter of 40 mm, and a thickness of 5 mm, ensuring a precise fit and reliable hydraulic system performance. It is compatible with numerous Zetor models including the UR I and UR III series, providing an effective seal to prevent fluid leakage and maintain optimal hydraulic pressure.