The SM 4240 is a precision-engineered Self Starter Rocker Assembly (Brush Holder) specifically designed for the Tata Nexon (Petrol and Diesel variants). Utilizing a high-efficiency 4-brush configuration (COM.TYPE), this assembly is built to support the Revotron and Revotorq engines. It is engineered to handle the rigorous duty cycles of a modern compact SUV, including the high-frequency starting demands of city traffic and Stop-Start systems.