{"product_id":"powtol-gx390-gx340-muffler-exhaust-assembly-for-honda-gx390-gx340-11hp-13hp-direct-fit-muffler-kit-with-head-shield-and-gaskets","title":"Powtol GX390\/GX340 Muffler Exhaust Assembly for Honda GX390 GX340 11HP\/13HP — Direct-Fit Muffler Kit with Head Shield and Gaskets","description":"\u003cstrong\u003ePowtol GX390 Muffler Exhaust Assembly is a direct-fit replacement muffler kit designed to restore exhaust routing and reduce noise on Honda GX340 (11HP) and GX390 (13HP) engines.\u003c\/strong\u003e\n\n\u003cp\u003eThis replacement assembly gives you the necessary components to swap a worn or damaged muffler on common small commercial engines. Built for compatibility with Honda part reference 18310-ZE2-W61, the kit includes the muffler body, a head shield manifold, and two gaskets so you can refit the exhaust system without sourcing extra hardware. Before ordering, confirm your engine model and part numbers to ensure a correct match and smooth installation.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this muffler assembly fit my Honda GX340 or GX390 engine?\u003c\/h3\u003e\n\u003cp\u003eThe Powtol kit is engineered to align with the mounting points and exhaust outlet of Honda GX340 (11HP, 338cc) and GX390 (13HP, 389cc) engines. It follows the same bolt pattern and port size as OEM unit 18310-ZE2-W61 so it can be bolted on with standard tools. If your engine has no aftermarket modifications to the exhaust flange, the fit will be straightforward.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible models: Honda GX340 11HP (338cc) and GX390 13HP (389cc)\u003c\/li\u003e\n  \u003cli\u003eOEM reference compatibility: 18310-ZE2-W61\u003c\/li\u003e\n  \u003cli\u003eIncludes mounting hardware interface: muffler, head shield manifold, two gaskets\u003c\/li\u003e\n  \u003cli\u003eDesigned to match original bolt pattern and port dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components come with the kit and why are they important?\u003c\/h3\u003e\n\u003cp\u003eThis package supplies the core parts required to replace a damaged muffler system: the muffler body controls exhaust flow and noise, the head shield manifold connects to the cylinder head, and the two gaskets seal the joints to prevent leaks. Having all three pieces in one box removes the guesswork and prevents exhaust leaks that can affect performance and cause hot spots near engine components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne muffler body — restores exhaust routing and sound damping\u003c\/li\u003e\n  \u003cli\u003eOne head shield manifold — secures the muffler to the cylinder head\u003c\/li\u003e\n  \u003cli\u003eTwo gaskets — ensure airtight seals at mating surfaces\u003c\/li\u003e\n  \u003cli\u003eReady-to-install package reduces parts-sourcing time\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow complicated is installation and what tools will I need?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typically uncomplicated for anyone familiar with small engine maintenance. You’ll need basic hand tools, such as a socket set, wrenches, and possibly penetrating oil for stuck fasteners. Replace gaskets during installation and torque bolts to manufacturer specifications to avoid leaks or warping.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTools: socket set, wrenches, screwdrivers; penetrating oil if needed\u003c\/li\u003e\n  \u003cli\u003eTip: change gaskets and tighten bolts evenly to spec\u003c\/li\u003e\n  \u003cli\u003eAllow the engine to cool completely before starting work\u003c\/li\u003e\n  \u003cli\u003eCheck for proper clearance to nearby components after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Powtol GX390 Muffler Exhaust Assembly is intended for owners, mechanics, and fleet operators who maintain Honda GX340 or GX390 powered equipment — including generators, pressure washers, water pumps, log splitters, and construction gear — and need a reliable replacement muffler kit. It suits anyone seeking a direct-fit substitute for part 18310-ZE2-W61, a compact parts solution that includes gaskets and the manifold to get engines back into service quickly. Always verify engine model and part numbers before purchase to ensure compatibility.\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: Is this muffler compatible with my Honda GX340 engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it is compatible with Honda GX340 11HP (338cc) engines when matching OEM part 18310-ZE2-W61. Verify your engine model and part number before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include gaskets and installation hardware?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The package includes one muffler, one head shield manifold, and two gaskets; additional hardware or bolts may be required if your original fasteners are corroded.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Powtol","offers":[{"title":"Default Title","offer_id":56832450068820,"sku":"B08LW17M52","price":75.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/powtol-gx390-front-view-muffler-assembly.jpg?v=1787029474","url":"https:\/\/gardenluxe.co.uk\/products\/powtol-gx390-gx340-muffler-exhaust-assembly-for-honda-gx390-gx340-11hp-13hp-direct-fit-muffler-kit-with-head-shield-and-gaskets","provider":"Gardenluxe Uk","version":"1.0","type":"link"}