Replaces # C1Q-S97, C1Q-S66, C1Q-S71, C1Q-S186, C1Q-S143 C1Q-S153; 4140 120 0612, 4140 120 0619<br> Compatible with STIHL FS55R FS55 FS55RC FS55C FS55CE FS55T FS55Z FS55CEZ FS55CEDZ FS55DZ FS55RCE FS55RCE-DZ FS55RCE-Z FS55R-DZ FS55R-Z trimmer / brushcutter<br> Compatible with STIHL FS38 FS45 FS46 FS45C FS45L FS46C FS38Z FS45CE FS46CE FS45CE-DZ FS45CEZ FS45DZ FS45Z FS46CEZ FS46DZ FS46Z trimmer / brushcutter<br> Compatible with STIHL FC55 HS45 HL45 HL45Z HL45DZ hedge trimmer; Compatible with STIHL KM55 KM55C KM55R KM55RC KM55RCE KM55RZ KM55RDZ KM55CE KM55RCEZ kombi motor<br>