This quality non genuine fuel filter fits the Stihl 017, 018, 020, 020T, 021, 023, 025, 028, 029, 039, 050, 051, 056, 070, 076, 08S, 090, MS170, MS171, MS180, MS181, MS200, MS200T, MS201, MS211, MS210, MS230, MS250, MS290, MS310, MS390, TS350.