The John Deere CC40597 is a genuine OEM locking collar designed for secure fastening of components in various John Deere agricultural and construction machinery. This essential part helps maintain proper alignment and prevents axial movement, ensuring reliable operation and longevity of your equipment. Manufactured to John Deere's rigorous standards, it provides a precise fit and durable performance for demanding applications in combines, cotton pickers, forage harvesters, headers, sprayers, and windrowers.