Genuine Stihl part suitable for the following models

021, 023, 025, BR500, BR550, BR600, BR700, BT120, BT120C, BT121, FR350, FR450, FR480, FR480C, FS40 (Pre 2000), FS44, FS94C, FS94RC, FS120, FS200, FS250, FS400, FS450, FS480, HL92C, HL92KC, HL94C, HS81R, HS81RC, HS81T, HS81TC, HS82R, HS82T, HS86R, HS86T, HS87R, HS87T, HT250, KM94RC, MS181, MS181C, MS210, MS210C, MS211, MS211C, MS230, MS230C, MS231, MS231C, MS250, MS250C, MS251, MS251 2-Mix, MS251C, MS251C 2-Mix, TS700, TS800

Note! Some models use 2 different fuel pipe sizes

ID 2.2mm x OD 5.4mm