The JCB 401B6406 is a genuine OEM oil pressure sender unit designed for accurate monitoring of engine oil pressure in a wide range of JCB agricultural and construction machinery. This essential component ensures reliable performance and helps protect the engine by providing critical pressure readings to the machine's control system. Compatible with models such as JCB 3CX, 4CX, and various Loadall series, it is manufactured to JCB's stringent quality standards for durability and precise operation.