The John Deere AZ42771 Collar Lock is an authentic OEM component designed to provide secure fastening and reliable performance across a wide range of John Deere equipment. This genuine collar lock is engineered to meet precise specifications, ensuring proper fit and function in hydraulic systems, drive components, and other critical assemblies. It is a vital part for maintaining the operational integrity and safety of your John Deere tractors, combines, and other machinery, preventing unwanted movement and ensuring components remain in place under demanding conditions. With a length of 38.1 mm, width of 38.1 mm, and height of 12.7 mm, and weighing 0.02268 kg, this durable collar lock is built for longevity and compatibility with numerous John Deere models.