The SM 6129 Starter EGT (Epicyclic Gear Train) Gear Set is a high-performance internal component kit specifically engineered for Lucas-style (L. Type) reduction starter motors. This set of three planetary gears is precision-machined to facilitate efficient torque multiplication within the reduction assembly of medium-duty commercial vehicles. Manufactured from high-tensile, heat-treated alloy steel, these gears are designed to withstand the massive rotational stress required to crank the advanced diesel engines found in the Ashok Leyland Ecomet series.