The John Deere RE21848 is a genuine OEM piston assembly seal designed for critical hydraulic and sealing applications in John Deere agricultural and construction machinery. This high-quality seal ensures optimal performance and prevents fluid leakage within piston assemblies. With an inner diameter of 50mm, an outer diameter of 60mm, and a thickness of 5mm, it provides a precise fit for compatible systems. Manufactured to John Deere's rigorous standards, the RE21848 seal is essential for maintaining the integrity and efficiency of hydraulic components across a wide range of John Deere tractors, combines, cotton pickers, forage harvesters, sprayers, and windrowers.