The John Deere AT11979 is a genuine OEM oil seal designed for critical sealing applications in John Deere agricultural and construction machinery. This high-quality seal ensures optimal performance and prevents fluid leakage, maintaining the integrity of components such as axles, transmissions, and hydraulic systems. Manufactured to John Deere's rigorous specifications, the AT11979 provides reliable sealing and durability, contributing to the longevity and efficiency of your equipment. Always refer to your machine's parts catalog for exact fitment.