{"product_id":"carbhub-carburetor-replacement-kit-591731-for-13-5-17-5hp-engines-complete-kit-with-air-fuel-filters-spark-plug","title":"Carbhub Carburetor Replacement Kit 591731 for 13.5–17.5HP Engines — Complete Kit with Air \u0026 Fuel Filters, Spark Plug","description":"\u003cp\u003e\u003cstrong\u003eThe Carbhub 591731 is a complete carburetor replacement kit built to restore fuel delivery on compatible 13.5–17.5HP vertical shaft engines and select Toro\/Cub Cadet lawn tractors and zero-turn mowers.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen an aging carburetor causes hard starting, rough idling, or fuel leaks, replacing it with a matched assembly and necessary accessories is often the fastest way to get equipment back in service. This Carbhub 591731 unit is supplied with multiple fittings and consumables — air filter, spark plug, fuel filter, gasket, clamps, fuel lines, shutoff valve — so you can swap the entire fuel system interface in one repair. It’s designed to fit a long list of part numbers and engine series used by popular lawn tractor and zero-turn models.\u003c\/p\u003e\n\n\u003ch3\u003eWhich models and engines will this carburetor fit?\u003c\/h3\u003e\n\u003cp\u003eThis replacement fits a range of Briggs \u0026amp; Stratton–pattern vertical shaft engines identified by service series and common part numbers. It is also compatible with many Toro and Cub Cadet lawn tractors and zero-turn mowers produced in specified model years.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible engine series: 31H777, 28AH76\/77, 28BH76\/77, 28CH77, 31A507 and similar vertical-shaft motors.\u003c\/li\u003e\n  \u003cli\u003ePower range: typical fit for 13.5HP, 14.55HP, 15HP, 16HP and 17.5HP engines.\u003c\/li\u003e\n  \u003cli\u003eListed OEM part cross-references include: 591731, 594593, 796109, 498811, 794161, 795477, 590400 and others.\u003c\/li\u003e\n  \u003cli\u003eCompatible with many Toro models (e.g., 71286, 71427–71429, 74301, 74325, 74327, 74330) and Cub Cadet LT\/RZT series variants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included in the package and why it matters?\u003c\/h3\u003e\n\u003cp\u003eThe kit arrives as a ready-to-install carburetor plus the common consumables and hoses used during a typical rebuild or replacement. That saves time hunting parts and reduces the chance of missing small but essential items during reassembly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Carburetor body matched to the listed cross-reference numbers.\u003c\/li\u003e\n  \u003cli\u003e1x Air filter and 1x fuel filter to ensure clean intake and fuel delivery on installation.\u003c\/li\u003e\n  \u003cli\u003e1x Spark plug, 1x gasket, 8x hose clamps, 2x fuel lines and 1x fuel shutoff valve for a complete refresh.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre there compatibility or version limitations I should know about?\u003c\/h3\u003e\n\u003cp\u003eYes — this carburetor is intended for machines manufactured in 2015 or later in the specified model families. Some older machines or engines with different mounting patterns or choke linkages will not accept this unit without additional modification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for models produced 2015 onward; not compatible with pre-2015 configurations in many cases.\u003c\/li\u003e\n  \u003cli\u003eIf you receive an older revision of the product, contact the seller for the updated kit or guidance.\u003c\/li\u003e\n  \u003cli\u003eVerify your engine’s part numbers and physical mounting before ordering to avoid fitment issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I prepare for installation and tuning?\u003c\/h3\u003e\n\u003cp\u003eBefore starting, gather basic hand tools, have fuel drained or contained, and compare the new carburetor’s mounting, throttle, and choke linkages to the removed unit. Installation typically requires minor adjustment of idle and mixture screws after mechanical mounting and hose connections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDisconnect the spark plug and drain fuel from the bowl or tank for safety prior to removal.\u003c\/li\u003e\n  \u003cli\u003eMatch mounting studs, throttle\/choke linkages and fuel line connections before tightening clamps.\u003c\/li\u003e\n  \u003cli\u003eAfter installation, adjust idle and mixture per your engine’s service manual and test under light load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Carbhub 591731 kit is aimed at DIY lawn mower owners, small-engine mechanics, and landscapers who need a comprehensive replacement package for mid-range vertical-shaft engines used in Toro and Cub Cadet tractors and zero-turn mowers. It’s most useful when you want a single-purchase solution that includes both the carburetor and commonly replaced consumables for an efficient field repair.\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: Does this replace the OEM part 796109?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the Carbhub 591731 lists 796109 among its cross-reference numbers and fits compatible engines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this work on machines made before 2015?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, this kit is intended for models manufactured in 2015 or later; older models may be incompatible.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Carbhub","offers":[{"title":"Default Title","offer_id":48084843233438,"sku":"B0788NXNNF","price":34.97,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/carbhub-591731-front-view.jpg?v=1785863372","url":"https:\/\/northtrailauto.ca\/products\/carbhub-carburetor-replacement-kit-591731-for-13-5-17-5hp-engines-complete-kit-with-air-fuel-filters-spark-plug","provider":"North Trail Auto","version":"1.0","type":"link"}