The SM 7856 Alternator Rotor Assembly is a heavy-duty electrical component specifically designed for the Lucas-style (L. Type) charging systems utilized in the Tata Ace Mega and Ace Mega XL series. Built to O.E. (Original Equipment) Specifications, this rotor is engineered to support the 4th generation DICOR (Common Rail) engines, providing the high-stability magnetic field required for the vehicle’s electronic fuel injection system and power steering modules.