The Claas 0011678440 is an authentic OEM sealing ring designed for critical applications in Claas agricultural and construction machinery. This high-quality sealing component ensures reliable performance and prevents leaks, contributing to the longevity and efficiency of hydraulic and mechanical systems. With an inner diameter of 25mm, an outer diameter of 35mm, and a thickness of 5mm, it provides a precise fit for compatible Claas models, ensuring optimal sealing integrity.