The JCB 47631301 is a genuine OEM crankcase breather designed for various JCB agricultural and construction machines. This essential component ensures proper ventilation of the engine crankcase, preventing pressure buildup and maintaining optimal engine performance. It is compatible with models such as the JCB 3CX, 4CX backhoe loaders, Loadall telehandlers (e.g., 531-70, 535-95, 540-140, 540-170), and Fastrac tractors (e.g., 3230, 8250, 8280, 8310, 8330).