The JCB 71630218 is a genuine OEM coolant temperature sensor designed for a wide range of JCB machinery. This essential component accurately monitors engine coolant temperature, providing critical data for optimal engine performance and preventing overheating. It is a direct replacement part, ensuring perfect fit and reliable operation across compatible JCB models including JS series excavators, JZ series excavators, 3CX, 4CX, 5CX backhoe loaders, and various telehandlers.