The JCB 02631250 is a genuine OEM alternator tensioner designed for various JCB mini excavators. This essential component ensures proper tensioning of the alternator belt, contributing to the efficient operation of the electrical system. It is compatible with JCB 8014, 8016, 8018, and 8020 series models, including their CTS variants. Weighing approximately 0.12 kg, this tensioner is a direct replacement part, ensuring reliable performance and fitment.