The SM 2042 is an ultra-heavy-duty 24-Volt Alternator Rotor (Armature Assembly) specifically engineered for the high-output Lucas-style (L. Type) alternators used in the Tata Prima range of World Trucks. This rotor is designed to work with the 5-Pin terminal systems (Ref# 01530) and is calibrated for a massive 24V / 100 Amps output to support the complex electronic architecture of modern heavy-haulage trucks.