Hedge trimmer starter pulley compatible STIHL Outer diameter (mm): 68 Inner diameter (mm): 10,5 for models: STIHL 029, 034, 036, 039, 044, 046, MS 261, MS 271, MS 290, MS 291, MS 310, MS 311, MS 341, MS 360, MS 390, MS 391, MS 440, MS 441, MS 460 Original part no.: 40270104 Original part no.: