{"product_id":"carburetor-replacement-594601","title":"594601 Carburetor - Fits B\u0026S 796587 591736 796250 19HP 19.5HP Engine Craftsman Riding Lawn Mower Tractor 19HP Intek","description":"\u003ch2\u003e594601 Carburetor Replacement\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized for Intek Single Cylinder:\u003c\/strong\u003e Specifically jetted for Briggs \u0026amp; Stratton 19HP and 19.5HP Intek OHV engines, ensuring smooth power delivery and stable RPMs under heavy mowing loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Afterburn Solenoid:\u003c\/strong\u003e Includes a high-response 12V fuel shut-off solenoid to prevent \"backfiring\" and \"after-run\" when turning off the engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Nikki-Style Casting:\u003c\/strong\u003e Manufactured with high-density alloy to match the original Nikki carburetor specifications, providing a perfect fit for the intake manifold and air filter housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Internals:\u003c\/strong\u003e Features updated needle valves and gaskets designed to withstand the corrosive effects of ethanol-blended fuels commonly found at gas stations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Fuel Atomization:\u003c\/strong\u003e Improved internal venturi design ensures better fuel-to-air mixing, leading to easier cold starts and improved fuel efficiency during long mowing sessions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e594601\u003c\/li\u003e\n\u003cli\u003e796587\u003c\/li\u003e\n\u003cli\u003e796250\u003c\/li\u003e\n\u003cli\u003e795486\u003c\/li\u003e\n\u003cli\u003e794136\u003c\/li\u003e\n\u003cli\u003e591736\u003c\/li\u003e\n\u003cli\u003e593003\u003c\/li\u003e\n\u003cli\u003e594599\u003c\/li\u003e\n\u003cli\u003ePS11829369\u003c\/li\u003e\n\u003cli\u003eERP11829369\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis carburetor is a direct replacement for many Craftsman riding mowers and lawn tractors equipped with Briggs \u0026amp; Stratton Intek engines:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Series:\u003c\/strong\u003e Primarily fits 19HP and 19.5HP Single Cylinder OHV Intek engines (e.g., 31 series engines).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment Brands:\u003c\/strong\u003e Commonly used on Craftsman, Poulan Pro, Husqvarna, Murray, and Ariens riding lawn mowers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburetor Type:\u003c\/strong\u003e Replacement for original Nikki brand carburetors with a solenoid-equipped fuel bowl.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard Starting:\u003c\/strong\u003e The engine requires multiple tries or starting fluid to fire, indicating the internal passages are clogged with old fuel varnish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Surging:\u003c\/strong\u003e The motor speed fluctuates up and down while at full throttle, often caused by a lean fuel mixture due to a restricted main jet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel in Oil:\u003c\/strong\u003e If you notice the oil smells like gasoline or the oil level is rising, the internal float or needle valve has failed, allowing fuel to leak into the crankcase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe \"No Start\" Solenoid Click:\u003c\/strong\u003e If you hear a click but the mower won't start, or if you don't hear a click when turning the key, the fuel shut-off solenoid on the old carburetor may be dead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaking Fuel:\u003c\/strong\u003e Visible gasoline dripping from the carburetor body or air filter box, posing a significant fire hazard.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Fuel System:\u003c\/strong\u003e Before installing the new carburetor, drain the old gas from the tank and replace the fuel line and fuel filter. Installing a new carb with dirty gas will ruin it instantly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolenoid Connection:\u003c\/strong\u003e Ensure the 12V lead to the fuel solenoid is clean and tight. If the solenoid doesn't receive power when the key is on, it will block fuel and the engine won't start.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGasket Alignment:\u003c\/strong\u003e Carefully inspect the mounting gaskets. If they are installed backward or misaligned, they will block the vacuum port, causing the engine to \"hunt\" or die under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinkage Handling:\u003c\/strong\u003e Use caution when connecting the throttle and governor linkages. Do not bend the thin metal rods, as this will result in incorrect engine speeds and potentially dangerous over-revving.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Change Recommended:\u003c\/strong\u003e If your old carburetor was leaking fuel, check your engine oil. If it smells like gas, you must change the oil and filter before running the engine with the new carburetor to prevent engine damage.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45371366899901,"sku":"AZ28504108","price":16.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00256545_1_da4eddb9-812c-4c1d-b0ae-8933a39fe03d.jpg?v=1762246072","url":"https:\/\/bluestarspartstrend.com\/products\/carburetor-replacement-594601","provider":"BlueStars Parts","version":"1.0","type":"link"}