NIMTEK Carburetor Carb for STIHL FS38 FS45 FS45C FS45L FS46 FS55 FS55C FS55T FS55R FS55RC KM55 HL45 KM55R FC55 String Trimmer New high quality aftermarket replacepart re-adjusted zama carburetor. Replaces ZAMA #'s: C1Q-S66, C1Q-S71, C1Q-S97(A), C1Q-S143, C1Q-S153, C1Q-S186,4140-120-0619 B 4140 120 0619 Replaces STIHL FS55 FC55 FS45 C1Q-S71 C1Q-S97 A C1Q-S143 C1Q-S153 C1Q-S186 C1Q-S186 A CIQ S186B 41401200619 4140 120 0619 B Package including 1pc x carburetor , 1set x gasket, 2 x primer bulbs