Accessories code name type origin markup A1-703C-51700NB2-140 spindle sixth gear tooth & amp; nbsp; 17 teeth & amp; nbsp; 56 holes EQ153NB Jinhua 183A1-703C-41700NB1-140B spindle sixth gear tooth & amp; nbsp; 15 tooth & amp; nbsp; 54 holes EQ153NB Guangdong 223A1-703C-31700NB-140B spindle sixth gear tooth & amp; nbsp; 16 tooth & amp; nbsp; 57 a hole EQ153NB Guangdong 183A1-703C-21700NB-140B spindle sixth gear tooth & amp; nbsp; 15 tooth & amp; nbsp; 57 a hole EQ153NB Guangdong 193A1-703C-11700NB-140 spindle sixth gear tooth & amp; nbsp; 17 teeth & amp; nbsp; 54 holes only EQ153NB2 Dongfeng gear box 223