This is a genuine Claas 7700038629 FKM sealing ring, designed for critical sealing applications in Claas agricultural and construction machinery. With an inner diameter of 40 mm, an outer diameter of 55 mm, and a height of 8 mm, this high-quality seal ensures reliable performance and prevents leaks. Manufactured from durable FKM material, it offers excellent resistance to heat, chemicals, and wear, ensuring a long service life. It is an essential component for maintaining the integrity of hydraulic systems, transmissions, and other rotating parts in a wide range of Claas tractors, combines, forage harvesters, and balers.