Compatible replacement: Designed to be a direct fit for chainsaw models 435, 435E, and 440E, so you can restore original fit and function without modification. Core function: Regulates the air/fuel mixture and idle/throttle response to help the engine start reliably and run smoothly. Durable construction: Made from metal and plastic components that balance strength and corrosion resistance for everyday use. Consistent performance: Built for dependable operation in both professional and homeowner settings, reducing stalls and improving throttle response. Easy to install: Matches the original mounting and linkage layout for a straightforward swap with your existing carburetor. Practical benefit: Replacing a worn or damaged carburetor with this unit restores startability, stabilizes idle, and improves power delivery under load. Key attributes Function: Carburetor for fuel/air metering, idle control, and throttle response. Compatibility: Fits chainsaw models 435, 435E, and 440E. Material: Metal and plastic construction for durability and lightweight handling. Performance: Reliable, consistent operation suitable for routine and heavy use. When to use or If the saw is hard to start, stalls at idle, or has poor throttle response, a worn carburetor is a common cause and this replacement can resolve those issues. Use this part when rebuilding or refurbishing a 435, 435E, or 440E chainsaw to restore factorylike performance. Keep a spare on hand for professional crews who need quick field repairs and minimal downtime. Typical applications Home yard maintenance: a failing carburetor on a 435series saw to regain reliable starts and steady idling for pruning and limb cleanup. Professional tree care: Install during routine maintenance to ensure consistent engine response when cutting limbs and trunks across a full workday. Property or farm use: Fit on a 440E saw used for fence clearing or brush cutting to maintain dependable performance in varied conditions. What you'll get A metalandplastic carburetor assembled to match the fit and function expected by 435/435E/440E chainsaws, intended to bring back reliable running characteristics without the need for custom adjustments.