The JCB 99100097 is a genuine OEM seal kit designed for hydraulic cylinders in a range of JCB machinery. This essential kit ensures optimal sealing performance and prevents leaks, maintaining the efficiency and reliability of hydraulic systems. It is compatible with JCB 3CX, 4CX, 5CX backhoe loaders and numerous Loadall models including 520, 525, 526, 527, 528, 530, 532, 533, 535, 537, and 540 series.