Brushcutter starter pulley compatible with EFCO OLEO-MAC EMAK hedge trimmers Outer diameter (mm): 70 Inner diameter (mm): 12 for models: EFCO 170, 180, TT 162, TT 180 OLEO-MAC EMAK 962TTA , 970 , 980 , 980TTA Original part No.: 40272000 Original part No.: 097000041A , 097000041