The John Deere Z42031 Packing Seal is an authentic OEM component designed to provide a reliable seal for piston and rod applications in a wide range of John Deere equipment. This packing seal ensures optimal performance and prevents leaks in hydraulic systems, contributing to the longevity and efficiency of your machinery. With an inner diameter of 38.1 mm, an outer diameter of 50.8 mm, and a thickness of 9.525 mm, it is engineered to meet precise specifications for a perfect fit across numerous John Deere tractor, combine, loader, and industrial models.