- 100% Brand New High-Quality Aftermarket Carburetor: Designed for exceptional performance, this carburetor ensures your snow blower operates smoothly and efficiently. - Guaranteed Fit: If this carburetor does not fit your Yard Machines Snow Blower Model 31BS644E129, we offer a full refund, providing you with peace of mind. - Enhanced Performance: This aftermarket carburetor is engineered to restore optimal function, making it a vital replacement for worn or damaged components. - Compatibility: Specifically designed for Yard Machines Snow Blower Model 31BS644E129, ensuring a perfect match for seamless installation. - Professional Installation Recommended: To maximize performance and reliability, we recommend professional installation. Please note that no installation instructions are provided. Use Scenarios: 1. Restore Efficiency: If your snow blower is struggling to start or maintain power, replacing the carburetor can greatly enhance its performance, making snow removal faster and easier. 2. Seasonal Maintenance: Regularly replacing the carburetor during pre-season maintenance can prevent unexpected breakdowns and ensure your snow blower is ready for winter challenges. Invest in this high-quality aftermarket carburetor to ensure your snow blower operates at its best when you need it most.