This carburetor is a replacement part designed for STIHL FS400, FS450, and FS480 grass trimmers and brushcutters. It comes with a new fuel adjustment screw and replaces the original Zama C1Q-S156 carburetor.
The unit is supplied as a single piece and is engineered to restore fuel delivery and engine performance on eligible STIHL models. If your trimmer is struggling to start, stalling frequently, or running unevenly, a worn carburetor may be the cause. This replacement part addresses those issues without requiring engine replacement.
Installation is straightforward for users with basic mechanical knowledge, though professional fitting is recommended if you’re unsure. The fuel adjustment screw allows you to fine-tune performance once fitted.
Verify your STIHL model number (FS400, FS450, or FS480) before ordering to ensure compatibility. Order yours today and restore your grass trimmer to reliable operation.

















