Plastic Tank cap For Stihl MS310 MS311 MS360MS361 MS390 MS391 MS171 MS181 MS192
For Stihl MS 171, MS 181, MS 192, C. For Stihl MS 200, MS201, MS 210, MS 211, MS 230, MS 240, MS 250, MS 260, MS 261, MS 290. For Stihl MS 310, MS 311, MS 360, MS361, MS 390, MS 391. Note: The tank cap does not fit the STIHL MS200T chainsaw.