This is a genuine Claas 0004787731 sealing ring, commonly known as an O-ring, designed for critical sealing applications in Claas agricultural and construction machinery. Manufactured from durable NBR material, it features an inner diameter of 13.95 mm, an outer diameter of 18.05 mm, and a thickness of 2.05 mm. This OEM part ensures a precise fit and reliable performance, preventing leaks and maintaining system integrity across a wide range of Claas tractors, combines, forage harvesters, balers, and telehandlers.