The Case IH LE00486 is an authentic OEM back-up ring designed to support O-rings and prevent extrusion in high-pressure hydraulic systems. This critical sealing component ensures reliable performance and extends the life of hydraulic seals in various Case IH agricultural and construction equipment. Manufactured to original specifications for optimal fit and durability in models such as MX series, Magnum series, Steiger series, Quadtrac series tractors, combines, cotton pickers, sprayers, and windrowers.