{"product_id":"generator-muffler-for-honda-gx340-gx390-clone-420-459cc-predator-56170-champion","title":"Generator Muffler For Honda GX340 GX390 Clone 420 459cc Predator 56170 Champion","description":"\u003cstrong\u003eThis Generator Muffler is a replacement exhaust muffler compatible with Honda GX340, GX390, 420cc-459cc clone engines, Predator 56170, and Champion generators.\u003c\/strong\u003e \u003ch2\u003eProduct Overview\u003c\/h2\u003e This Generator Muffler is a direct-fit exhaust silencer engineered for portable generators and equipment powered by 420cc–459cc clone engines. The heavy-duty Generator Muffler reduces operating noise without restricting exhaust flow, restoring proper sound suppression on Honda GX340\/GX390-powered machines, Predator 56170, and Champion units. Designed as a straightforward bolt-on solution, this Generator Muffler replaces rusted, dented, or clogged original mufflers to keep your engine running smoothly. \u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eHeavy-gauge steel shell withstands high exhaust temperatures and vibration\u003c\/li\u003e \u003cli\u003eAluminized coating resists rust and corrosion for longer service life\u003c\/li\u003e \u003cli\u003eDirect bolt-on replacement — no cutting, welding, or fabrication required\u003c\/li\u003e \u003cli\u003eInternal multi-chamber baffles lower decibel levels without creating back-pressure\u003c\/li\u003e \u003cli\u003eMatches factory muffler dimensions and bolt-hole spacing for a precise fit\u003c\/li\u003e \u003cli\u003eThreaded outlet ready for spark arrestor or exhaust pipe attachment\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eHonda GX340 engine-equipped generators and equipment\u003c\/li\u003e \u003cli\u003eHonda GX390 engine-equipped generators and equipment\u003c\/li\u003e \u003cli\u003e420cc, 440cc, and 459cc clone engines (Predator, DuroMax, and similar)\u003c\/li\u003e \u003cli\u003ePredator 56170 portable generator\u003c\/li\u003e \u003cli\u003eChampion portable generators with 389cc–459cc engines (select models)\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eCommon Uses\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eReplacing a rusted or damaged muffler on portable generators\u003c\/li\u003e \u003cli\u003eQuieting exhaust noise on pressure washers, water pumps, and log splitters\u003c\/li\u003e \u003cli\u003eRestoring correct exhaust routing for improved engine performance\u003c\/li\u003e \u003cli\u003eMaintaining generator readiness during camping, RV use, and power outages\u003c\/li\u003e \u003cli\u003ePreventative maintenance on job-site and standby power equipment\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompatible Engine Displacement:\u003c\/strong\u003e 420cc – 459cc\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatible Engine Series:\u003c\/strong\u003e Honda GX340, GX390 and clone engines\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Predator 56170, Champion generators (select models)\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this muffler fit my Predator 420cc engine? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this muffler is built for 420cc clone engines, including Predator 420cc models, provided the exhaust flange bolt pattern matches the GX390 layout. Always confirm your engine’s mounting holes before ordering.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the muffler include mounting hardware? \u003cstrong\u003eA:\u003c\/strong\u003e A pre-installed exhaust gasket is included. Mounting bolts are not supplied; reuse the existing hardware from your original muffler for a secure, leak-free installation.\u003c\/p\u003e \u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53679679209745,"sku":"ZZ3A00771","price":96.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/57_7ff0bf52-4df8-43fa-9abd-bbc7c3937d30.jpg?v=1781652788","url":"https:\/\/www.duraforce.com\/products\/generator-muffler-for-honda-gx340-gx390-clone-420-459cc-predator-56170-champion","provider":"DURAFORCE","version":"1.0","type":"link"}