{"product_id":"ferilter-carburetor-for-kohler-7000-series-kt725-kt745-1685321-s-complete-replacement-kit-with-filters-spark-plug","title":"Ferilter Carburetor for Kohler 7000 Series KT725–KT745 (1685321-S) — Complete Replacement Kit with Filters \u0026 Spark Plug","description":"\u003cp\u003e\u003cstrong\u003eFerilter 1685321-S is a direct-fit replacement carburetor assembly designed for Kohler 7000 Series engines (KT725, KT730, KT735, KT740, KT745) to restore fuel delivery and running performance on lawn mowers and garden tractors.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Kohler 7000 Series engine is running rough, stalling, or hard to start, an aging or clogged carburetor is often the cause. This Ferilter 1685321-S unit ships as a complete kit with the carburetor plus essential installation parts—fuel line, shutoff valve, spark plug, fuel filters, gaskets, clamps and mounting screws—so you can replace the worn component and get back to mowing quickly. It is engineered to match the fit and fuel port layout of the original Kohler part numbers listed below.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Kohler engines and part numbers does this replace?\u003c\/h3\u003e\n\n\u003cp\u003eThis carburetor is intended for Kohler 7000 Series engines identified as KT725, KT730, KT735, KT740 and KT745 and generally covers 22–26 horsepower variants. Compare your old carburetor visually and confirm part numbers before purchasing to ensure compatibility.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect replaces: 1685321S and 1685321-S equivalents\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with legacy numbers: 1605321S, 3285361, 3205347, 3205361, 3285347S\u003c\/li\u003e\n  \u003cli\u003eSuitable for engines rated 22 hp, 23 hp, 24 hp, 25 hp, 26 hp\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included in the Ferilter carburetor kit and why it matters?\u003c\/h3\u003e\n\n\u003cp\u003eRather than sending only the carburetor body, this kit arrives with the additional hardware and consumables needed for a clean installation and immediate operation. That reduces return trips for missing parts and helps ensure proper sealing and fuel flow after replacement.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e1 complete carburetor (1685321-S specification)\u003c\/li\u003e\n  \u003cli\u003eFuel line and fuel shutoff valve for correct fuel routing\u003c\/li\u003e\n  \u003cli\u003eSpark plug and two fuel filters to refresh ignition and filtration\u003c\/li\u003e\n  \u003cli\u003eAir cleaner gasket, carburetor gasket, screw kit and 4 clamps for installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will installing this carburetor affect mower performance?\u003c\/h3\u003e\n\n\u003cp\u003eInstalling a correct-fit carburetor restores consistent fuel metering, which improves starting, idle stability and throttle response without changing engine tuning. This part is a like-for-like replacement, so it returns the engine to its designed behavior when the original carburetor has degraded.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eImproves cold starting and reduces stalling under load\u003c\/li\u003e\n  \u003cli\u003eRestores smooth idle and steadier RPM under throttle changes\u003c\/li\u003e\n  \u003cli\u003eHelps prevent flooding and fuel leakage when gaskets and valves are new\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I confirm fitment before ordering?\u003c\/h3\u003e\n\n\u003cp\u003eCheck your engine model tag and the part number stamped on your original carburetor; visually compare mounting holes, throttle and choke linkages and fuel port locations with the product photos. If your engine model appears on the compatibility list and the mounting pattern matches, this kit is likely correct.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVerify engine model: KT725, KT730, KT735, KT740, KT745\u003c\/li\u003e\n  \u003cli\u003eCompare old carburetor to photos for bolt pattern and port placement\u003c\/li\u003e\n  \u003cli\u003eConfirm horsepower rating (22–26 hp) and related Kohler part numbers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This Ferilter 1685321-S carburetor kit is aimed at DIY mechanics, lawn mower owners, small-engine repair shops and maintenance technicians who need a complete, ready-to-install replacement for Kohler 7000 Series engines. It’s best when you’ve confirmed model compatibility and want a single shipment that includes gaskets, filters and basic hardware to finish the job without extra parts runs.\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 part number 1685321S?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Ferilter 1685321-S is a direct replacement for Kohler 1685321S and equivalent legacy numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this compatible with KT735 24 HP engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This carburetor kit lists compatibility with KT735 and Kohler 7000 Series engines 22–26 HP.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Ferilter","offers":[{"title":"Default Title","offer_id":48086419570846,"sku":"B0CYFZSJ1Y","price":48.47,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ferilter-carburetor-front-assembly.jpg?v=1785898070","url":"https:\/\/northtrailauto.ca\/products\/ferilter-carburetor-for-kohler-7000-series-kt725-kt745-1685321-s-complete-replacement-kit-with-filters-spark-plug","provider":"North Trail Auto","version":"1.0","type":"link"}