The John Deere AL175778 is a genuine OEM combi seal designed for king pin applications in agricultural machinery. This high-quality seal measures 62mm inner diameter, 78mm outer diameter, and 8mm thickness, ensuring a precise fit and reliable sealing performance. It is crucial for preventing lubricant leakage and protecting the king pin assembly in the front axle. This AL175778 combi seal is compatible with a wide range of John Deere 6000, 6010, 6020, 6030, 7000, 7010, and 7020 series tractors, as well as specific 5R and 5RN series models, providing an essential component for maintenance and repair.