Carburetor Replacement for Stihl BR320 BR340 BR400 BR420 Leaf Blower, Smooth Engine Performance

Replacement carburetor compatible with STL BR320 BR340 BR380 BR400 BR420 SR420 HD281 blower models. Directfit replacement for OEM part numbers 42031200603 and 42031200601. Key benefits Restores proper air and fuel metering to help the engine start reliably and run smoothly. Direct compatibility with listed blower models reduces fitment issues and installation time. Designed to match OEM mounting points and throttle linkage for a straightforward swap. Durable construction intended for routine outdoor equipment use and maintenance cycles. What this part does Regulates the air and fuel mixture delivered to the engine for consistent combustion and steady throttle response. Replaces worn or damaged carburetors that cause hard starting, poor idling, rough running, or loss of power. Compatibility Fits STL BR320, BR340, BR380, BR400, BR420, SR420 and HD281 blower models. Matches OEM reference numbers 42031200603 and 42031200601 for correct replacement. Installation and fit Designed as a direct replacement with matching mounting holes and linkage positions. Typical installation requires basic hand tools and routine mechanical skills; follow the equipment manual for detailed steps and safety precautions. Recommend inspecting fuel lines, gaskets, and air filter when replacing the carburetor to ensure full system reliability. Use scenarios a worn carburetor on a BR320 blower that now stalls at idle and struggles to accelerate. Keep on hand as a maintenance spare for landscaping or groundskeeping crews servicing BR340 and BR420 blowers during peak season. Install during a seasonal tuneup to restore consistent starting and reduce time spent troubleshooting fuel delivery issues. Included Carburetor unit compatible with the listed models and OEM numbers. If you need a direct replacement to restore reliable performance in the compatible blower models, this carburetor is made to match OEM fit and function for an efficient .