Product overview Replacement carburetor designed as a directfit replacement for part 640084B. Compatible with Tecumseh engines used on Craftsman and MTD snowblower Snowking models that require this part number. Restores fuel metering and supports reliable starting and steady running when installed and adjusted correctly. Key benefits Restores performance: Replaces worn or clogged carburetor components to help improve starting, idle stability, and throttle response. Direct replacement: Designed to match mounting points and port locations for models that use part 640084B, minimizing modification or extra parts. Simplifies : Replacing the carburetor solves common fuel delivery issues such as flooding, hesitation, or rough operation caused by aged carburetor components. Durable design: Built to meet original equipment form and fit standards for routine seasonal maintenance and repairs. Important attributes Function: Regulates the air and fuel mixture delivered to the engine for combustion, including idle and main fuel circuits. Compatibility: Direct replacement for part number 640084B and compatible with Tecumseh engines found on Craftsman and MTD Snowking snowblowers that specify this part. Size and fit: OEMstyle compact design sized to match original carburetor mounting and linkage layout for an easy fit on compatible engines. Material and construction: Metal and fuelresistant components designed for typical outdoor engine use and exposure to gasoline and engine vibration. Performance: Intended to restore proper fuel flow and metering when installed and tuned, supporting dependable starting and consistent engine speed under load. Practical use scenarios Seasonal tuneup: the carburetor before winter to ensure a snowblower starts reliably and runs smoothly during prolonged coldweather use. after storage: Swap this carburetor when an engine stalls, will not idle, or shows fuelrelated problems after long storage periods where gumming or varnish has clogged the original carburetor. Refurbish a machine: Use as part of an engine overhaul to a vintage or hour snowblower to dependable service without extensive modifications. Installation notes Intended as a bolton replacement for models that require part 640084B. Basic mechanical skills and common hand tools are typically sufficient for installation. After installation, adjust idle and mixture screws per engine service recommendations for operation. Inspect related components such as fuel lines, primer bulb, air filter, and intake gaskets while replacing the carburetor to ensure full system reliability. guidance Choose this carburetor when replacing part 640084B on compatible Tecumseh engine applications in Craftsman and MTD Snowking snowblowers to restore proper fuel delivery and engine function.