{"product_id":"carbhub-591731-carburetor-replacement-31h777-2015-engine-fits-toro-cub-cadet","title":"Carbhub 591731 Carburetor Replacement – 31H777 \u0026 2015+ Engine Fits | Toro \u0026 Cub Cadet","description":"\u003ch2\u003eUpgrade your outdoor power equipment with Carbhub\u003c\/h2\u003e\n\u003cp\u003eWhen it’s time to replace a carburetor, you want a part that fits your machine and performs consistently. The Carbhub 591731 replacement is designed for contemporary engines and a broad range of popular models. It supports reliable fuel delivery and steady throttle response across everyday lawn care tasks. This carburetor is compatible with 31H777 and related vertical-shaft engines, covering 13.5 HP to 17.5 HP variations, and is a fit for common Toro lawn tractors and Cub Cadet riding mowers.\u003c\/p\u003e\n\u003cp\u003eEngineered with a focus on compatibility and practical installation, the 591731 integrates with engines manufactured in 2015 or later. It is not recommended for machines built before 2015, ensuring you’re choosing a modern variant that aligns with current components and fuel systems.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSupports 31H777, 28AH76, 28AH77, 28BH76, 28BH77, 28CH77, and 31A507-series engines in the 13.5–17.5 HP range.\u003c\/li\u003e\n  \u003cli\u003eSuitable for Toro models such as 71286 (2005–2007), 71427, 71428, 71429, 74301, 74325, 74327, 74330, and Cub Cadet LT1018 \/ RZT17 \/ RZT42 lines.\u003c\/li\u003e\n  \u003cli\u003eDesigned for engines manufactured in 2015 or later; not compatible with pre-2015 machines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKit contents and quick installation\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Carburetor, 1x Air Filter, 1x Spark Plug, 1x Fuel Filter, 1x Gasket\u003c\/li\u003e\n  \u003cli\u003e8x Clamps, 2x Fuel Lines, 1x Fuel Shut Off Valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat to expect in use\u003c\/h3\u003e\n\u003cp\u003eWhile no replacement can guarantee immediate performance changes, this kit provides a complete set of components that can facilitate a straightforward swap and consistent fuel flow. The included gasket and clamps support a secure seal and reliable connections during operation. If your current setup uses old parts or improper seals, this kit offers a practical path to restoring alignment between fuel delivery and air intake, which is a sensible step in routine maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eDurability and design\u003c\/h3\u003e\n\u003cp\u003eThe 591731 carburetor features a robust metallic finish and precisely machined passages to help maintain reliable metering across varying engine loads. A snug gasket interface and vibration-resistant seals contribute to steady operation in outdoor conditions, while the compact form helps with accessible replacement in crowded engine bays.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation tips\u003c\/h3\u003e\n\u003cp\u003eBefore installing, verify part numbers and ensure mounting surfaces are clean. Safely drain old fuel to reduce debris. Replace the air filter and spark plug if they show wear. After installation, check seals and clamps for a secure fit and test throttle movement for smooth operation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which engines and models is the Carbhub 591731 carburetor replacement compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for 31H777 and related vertical shaft engines, including 13.5–17.5 HP variants, and popular Toro and Cub Cadet tractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in the package and are there model year limitations?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Package includes carburetor, air filter, spark plug, fuel filter, gasket, clamps, fuel lines, and shut-off valve; designed for 2015+ machines, not for pre-2015 models.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Carbhub","offers":[{"title":"Default Title","offer_id":42466100904021,"sku":"B0788NXNNF","price":33.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/carbhub-carburetor-assembly-view.jpg?v=1778037534","url":"https:\/\/plentytorque.co.uk\/products\/carbhub-591731-carburetor-replacement-31h777-2015-engine-fits-toro-cub-cadet","provider":"PlentyTorque","version":"1.0","type":"link"}