The JCB 05903819 is a genuine OEM O-Ring designed for a wide range of JCB agricultural and construction machinery. This essential sealing component ensures a tight, leak-free connection in hydraulic and fluid systems. With an inner diameter of 14.28 mm, a section diameter of 2.62 mm, and an outer diameter of 19.52 mm, it provides reliable performance in demanding applications. Compatible with popular models including JCB 3CX, 4CX backhoe loaders, 520, 526, 530, 532, 535, 540, 541 Loadall telehandlers, and JS130, JS145, JS160, JS180, JS200, JS220 excavators.