The JCB 71426101 Regulator & Brush Box Assembly is a genuine OEM component designed for specific JCB alternators. This critical part regulates the voltage output from the alternator and houses the carbon brushes, which are essential for transferring current to the rotor. Replacing this assembly with a genuine JCB part ensures optimal electrical system function, stable voltage, and extended service life for your machinery. It is engineered to meet JCB's stringent quality standards for durability and performance.