The Case-IH 87406477 is a genuine OEM retainer ring designed for internal suspension axle systems. This critical component ensures the secure positioning and retention of various parts within the axle assembly, preventing movement and maintaining operational integrity. Manufactured to Case-IH specifications, it guarantees precise fitment and reliable performance in demanding agricultural and construction environments. This retainer ring is essential for maintaining the proper function and longevity of compatible Case-IH machinery.