This is a genuine Claas 0002137221 adjustment washer, precisely engineered for optimal fit and performance in a wide range of Claas agricultural, construction, and industrial machinery. With an inner diameter of 20 mm, an outer diameter of 30 mm, and a thickness of 1 mm, this washer ensures proper spacing and alignment of components. Made from durable materials, it provides reliable operation and extends the lifespan of associated parts. Essential for maintaining the correct tolerances in transmissions, axles, and other critical assemblies across Claas combines, tractors, forage harvesters, balers, and loaders.