The JCB 90450021 is a genuine OEM hub oil seal ring designed to maintain optimal lubrication and prevent contamination in various JCB machinery hubs. With an inner diameter of 120mm, an outer diameter of 160mm, and a thickness of 15mm, this high-quality seal ensures a precise fit and reliable performance. It is suitable for a wide range of JCB models including 3CX, 4CX, 5CX backhoe loaders, 520, 525, 530, 535, 540 Loadalls, and 407, 409, 410, 411, 412, 414, 416, 418, 426, 436, 446, 456, 460 wheel loaders.