Replacement carburetor compatible with Craftsman 143.988501 and 143988501 snow thrower models with Tecumseh engine Restore reliable starting and steady engine operation with this directfit replacement carburetor. Designed to match the original unit on the listed Craftsman snow thrower models, it helps correct fuel delivery problems that cause hard starting, poor idling, and stalling. Key benefits Restores proper fuel flow and metering to improve starting, idle stability, and throttle response. Directfit design aligns with original mounting and fuel connections for straightforward installation. Durable construction and precisionmachined passages resist wear and maintain consistent performance. Helps reduce downtime by replacing a worn or damaged carburetor rather than diagnosing multiple fuel system components. Main features and attributes Function: Replaces the carburetor to control fuel and air mixture supplied to the engine for reliable combustion. Compatibility: Intended for Craftsman snow thrower models 143.988501 and 143988501 with Tecumseh engine compatibility. Confirm part number before . Construction: Metal body with precisionmachined fuel passages and consistent jet sizing to restore correct fuel metering. Size and fit: Compact, directreplacement form factor designed to match original mounting points and fuel line connections for these models. Performance: Provides consistent fuel delivery for improved starting, smoother idling, and predictable throttle response under load. Practical applications and use scenarios Winter service after seasonal storage: an old or gummed carburetor to restore starting reliability before the first heavy snowfall. Field during maintenance: Swap the carburetor as part of routine small engine when symptoms point to fuel delivery issues such as flooding, hard starting, or inconsistent idle. Preparing equipment for or handoff: Install a fresh replacement carburetor to demonstrate functional operation and reduce future troubleshooting for the next owner. Installation notes and recommendations Confirm compatibility with model numbers 143.988501 and 143988501 and the Tecumseh engine before installing. Inspect fuel lines, primer bulb, and fuel filter while servicing the carburetor; clean or as needed to ensure results. Basic mechanical skills and common hand tools are typically sufficient for installation. If unsure, consult a qualified small engine technician. This replacement carburetor provides a practical, directfit option to restore fuel system function on the specified Craftsman snow thrower models with Tecumseh engine compatibility.