CG125 motorcycle main harness plug, 8-pin interface, wire sequence color and CG125 vehicle main harness exactly match, directly replace the original plug, without adjusting the electrical route sequence can restore electrical connection; The plug shell is made of high temperature insulating rubber, and the internal pins are made of copper plated material. It has strong insulation and good conductivity, so as to avoid short circuit and poor contact. Plug interface with sealed design, can block dust, water vapor intrusion, suitable for the complex environment of outdoor cycling, extend the life of the circuit; One end is 8 needle male head, one end is 8 needle wire bundle interface, directly inserted into the corresponding main wire bundle can be used, simple operation without welding; The color dividing line is consistent with the original line sequence, to avoid electrical faults caused by wrong wiring, and ensure the normal operation of lighting, ignition and other systems.