The SM 7811 Alternator Rotor Assembly is a high-output electrical component specifically engineered for the 12-Volt Lucas-style (L. Type) charging systems found in the Tata Safari and Tata Winger (A/C models). This is a "Pump Type" rotor, featuring an integrated rear splined shaft designed to drive the mechanical vacuum pump for the braking system. Built to O.E. (Original Equipment) Specifications, this rotor is designed to support the heavy electrical loads of dual-unit air conditioning and the high-torque demands of the 2.2L DICOR and 3.0L diesel engine platforms.