The John Deere DQ05139 is a genuine OEM shaft seal designed for critical sealing applications in John Deere agricultural and construction machinery. With precise dimensions of 40 mm inner diameter, 62.2 mm outer diameter, and 11.5 mm thickness, this seal ensures optimal performance and prevents leaks in compatible systems. It is engineered to meet John Deere's stringent quality standards, providing durability and reliable operation across a wide range of tractors, combines, sprayers, and other equipment.