The JCB 99110141P is a genuine OEM seal kit designed for hydraulic cylinders across a wide range of JCB machinery. This comprehensive kit provides essential replacement seals for boom, dipper, bucket, and steering cylinders, ensuring optimal hydraulic performance and preventing fluid leaks. It is compatible with numerous JCB models, including 3CX and 4CX backhoe loaders, 520, 525, 526, 527, 530, 532, 535, 537, 540, 541, 550, 560 Loadall telehandlers, and JS series excavators (JS130, JS140, JS160, JS180, JS190, JS200, JS210, JS220, JS230, JS240, JS260, JS290, JS300, JS330, JS360, JS370, JS460, JS500, JS520, JS550). Using genuine JCB parts ensures perfect fitment and durability, maintaining the integrity of your hydraulic systems.