{"product_id":"biolion-carburetor-for-onan-qg-4000-cummins-0a6562-direct-fit-4kyfa-6747p-replacement-kit-with-gaskets-fuel-filter","title":"BioLion Carburetor for Onan QG 4000 \/ Cummins 0A6562 — Direct-Fit 4KYFA-6747P Replacement Kit with Gaskets \u0026 Fuel Filter","description":"\u003cstrong\u003eA complete replacement carburetor assembly engineered to restore proper fuel delivery and reliable starts for Onan QG 4000 (4KYFA-6747P) and compatible Cummins generators.\u003c\/strong\u003e\n\n\u003cp\u003eThis BioLion carburetor kit is designed as a direct-fit alternative for Onan A041D744 and Cummins 0A6562 KY-series generators, providing a ready-to-install solution when worn jets, leaks, or poor throttle response have reduced engine performance. The package arrives with all necessary small parts—gaskets, clamps, a fuel line and filter, and an oil valve—so you can replace the carburetor without running to multiple suppliers.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this carburetor improve generator starting and idle?\u003c\/h3\u003e\n\u003cp\u003eReplacing a failing carburetor often removes common causes of hard starting and unstable idle. The BioLion unit renews fuel metering and sealing surfaces so the engine receives consistent fuel\/air mixture across RPM ranges.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNew jets and passages for predictable fuel flow\u003c\/li\u003e\n  \u003cli\u003eIncluded gaskets prevent vacuum and fuel leaks\u003c\/li\u003e\n  \u003cli\u003eFuel filter and line reduce contaminants reaching the carburetor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this a direct fit for my Onan QG 4000 or Cummins 0A6562 generator?\u003c\/h3\u003e\n\u003cp\u003eThis replacement is manufactured to match the form and function of the original 4KYFA-6747P \/ A041D744 carburetor used in Onan QG 4000 and Cummins KY-series models. To avoid fitment issues, compare the pictured part and the stamped part number on your original before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces Onan part number 146-0881 and matches A041D744 geometry\u003c\/li\u003e\n  \u003cli\u003eDesigned for QG 4000W (4KYFA-6747P) and Cummins 0A6562 models\u003c\/li\u003e\n  \u003cli\u003eCheck mounting holes, throttle linkage, and fuel inlet orientation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the kit and what tools will I need?\u003c\/h3\u003e\n\u003cp\u003eThe BioLion kit includes the carburetor plus the common replacement small parts you’ll want at hand during the job. Typical hand tools are sufficient; the kit is intended to minimize trips back to the parts store by providing the consumables installers commonly replace at the same time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKit contents: 1 carburetor, 3 gaskets, 4 clamps, 1 fuel line, 1 fuel filter, 1 oil valve\u003c\/li\u003e\n  \u003cli\u003eTools: screwdrivers, pliers, wrench set, and a clean rag\u003c\/li\u003e\n  \u003cli\u003eSimple bench or in-place swap; expect basic mechanical skill level\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this stop problems like black smoke, oil seepage, or loss of acceleration?\u003c\/h3\u003e\n\u003cp\u003eWhile a faulty carburetor is a common source of these symptoms, confirming the root cause is important. Replacing the carburetor and associated seals often eliminates fuel-rich running, throttle hesitation, and fuel leaks, but inspect related components like the air filter, ignition system, and crankcase ventilation as well.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAddresses fuel-metering faults that cause black smoke\u003c\/li\u003e\n  \u003cli\u003eNew gaskets and oil valve reduce leaks and seepage\u003c\/li\u003e\n  \u003cli\u003eImproves throttle response and acceleration consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This BioLion carburetor assembly suits RV owners, marine or small-industrial operators, and field technicians who need a practical, all-in-one replacement for Onan QG 4000 and compatible Cummins KY-series generators. It’s aimed at users comfortable with basic engine maintenance who want to restore reliable starting, clean combustion, and leak-free operation without hunting for separate small parts.\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 carburetor fit the Onan QG 4000?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It’s designed as a direct replacement for the Onan QG 4000 (4KYFA-6747P) and compatible with A041D744\/Cummins 0A6562 models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are replacement gaskets and clamps included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit includes 3 gaskets, 4 clamps, a fuel line, fuel filter, and an oil valve for a complete swap.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BioLion","offers":[{"title":"Default Title","offer_id":48082985943198,"sku":"B0FHB6L1WB","price":51.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/biolion-carburetor-front-view.jpg?v=1785821824","url":"https:\/\/northtrailauto.ca\/products\/biolion-carburetor-for-onan-qg-4000-cummins-0a6562-direct-fit-4kyfa-6747p-replacement-kit-with-gaskets-fuel-filter","provider":"North Trail Auto","version":"1.0","type":"link"}