This heavy-duty engine starting motor is specially designed for SHACMAN Delong series heavy trucks. It provides powerful torque to crank the diesel engine and complete the startup process reliably in various environments. The starter adopts high-performance copper coil and high-strength drive gear, which can withstand the instantaneous impact load generated during engine ignition. Its sealed housing structure effectively blocks dust, muddy water and other contaminants, reducing internal component wear. Every starter undergoes no-load test, load torque test and insulation inspection before shipment to guarantee stable starting performance. It can solve common faults such as difficulty starting, abnormal noise and starter failure caused by internal component aging. It is a core electrical replacement part for heavy truck engine maintenance and overhaul.