Replacement carburetor for Ariens snow blower model 939001. Designed as a directfit replacement to restore correct fuel delivery and the engine to reliable starting and running behavior. Key benefits Restores starting and idle: Replaces a worn or clogged carburetor to fix hard starts, stalling at idle, and irregular engine speed. Directfit compatibility: Matches the original part form and mounting points for model 939001 to reduce installation time. Consistent fuel metering: Precision ports and passages maintain a steady air fuel mixture for smoother throttle response during use. Simplifies : Swapin replacement that eliminates troubleshooting a failing carburetor and gets the snow blower back in service quickly. Built for durability: Constructed to meet the dimensional and functional requirements of the original component for reliable seasonal performance. Function and attributes Function: Regulates the mixture of fuel and air delivered to the engine to support starting, idling, and power under load. Compatibility: Designed to the carburetor on Ariens snow blower model 939001. Intended as a direct replacement for that specific application. Fit and size: Manufactured to match the original part size and mounting configuration so it uses existing linkages and fasteners. Performance: Provides consistent fuel flow and mixture control to improve engine response and reduce issues related to old or damaged carburetors. Installation and use Installs using the original mounting points and common hand tools. No major modifications required when used on the specified model. Recommended as a option when the engine is hard to start, stalls at idle, has poor throttle response, or when fuel leaks or flood conditions indicate carburetor failure. Practical use scenarios After winter storage the snow blower will not start; replacing the carburetor restores starting and reliable operation. Midseason when the engine hesitates under load or stalls while clearing driveways and walkways. Preventive maintenance before a heavy snow event to avoid downtime and ensure steady performance during extended use. Compatibility note Replacement carburetor for Ariens snow blower model 939001. Verify model number before to ensure correct fit.