The SM 1211 is a specialized 12V starter armature designed for DCM-style starter motors used in regional or customized variants of the Komatsu PC 200 series and similar industrial equipment. While most PC 200 systems are 24V, the SM 1211 is engineered for 12V configurations, providing high-amperage torque to overcome diesel engine compression with a lower voltage supply. Featuring a 9-tooth (9T) spline, it ensures rugged mechanical reliability.