Parts drawing number name encoding models on origin A1-418A-1BL214 shaft bearing Tianjin Xiangyang 68A1-418A-2996713K1 release bearing assembly EQ153 Xiangyang factory 78A1-418B-1DC6J90TA-1365/6 gear tooth seat DC90T Shaoxing 193A1-418B-2DC90T-116A1/2 file fix toothholder DC90T Datong 173A1-418A-3996713K1 release bearing assembly small EQ153 Xiangyang 73A1-418A-4 bearing BL213N/C3EQ153 Shiyan 63A1-418B-4DC6J90TA-1263/4 file fix toothholder (not return) DC90T Datong. 223A1-418B-3DC6J90TA-1161/2 file fix toothholder. (not to return the original factory Datong) DC90TA 223