The ER128630 Disk Spring is an authentic John Deere OEM part designed for critical applications in a wide range of John Deere equipment. This genuine disk spring ensures proper tension and function within mechanical assemblies, contributing to the reliable operation and longevity of your machinery. Manufactured to John Deere's rigorous specifications, it provides precise fitment and performance for models including utility tractors, compact utility tractors, combines, and large agricultural tractors.