{"product_id":"merc-325","title":"Mercury MerCruiser Quicksilver Exhaust Manifold End Cap Gasket 480431","description":"\u003cp\u003eMercury MerCruiser Quicksilver 480431 is a genuine OEM \u003cstrong\u003eexhaust manifold end cap gasket\u003c\/strong\u003e used on select MerCruiser exhaust manifold and cooling-system service applications. Current Mercury parts references identify the full gasket part number as \u003cstrong\u003e27-480431\u003c\/strong\u003e, with earlier \u003cstrong\u003e27-48043 \/ 48043\u003c\/strong\u003e superseded to \u003cstrong\u003e480431\u003c\/strong\u003e. This gasket is used where the exhaust manifold end cap needs a proper sealing surface during repair or reassembly.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Mercury Marine \/ Quicksilver OEM gasket.\u003c\/li\u003e\n\u003cli\u003ePart number \u003cstrong\u003e480431 \/ 27-480431\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIdentified as an \u003cstrong\u003eexhaust manifold end cap gasket\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eSupersedes earlier gasket number \u003cstrong\u003e48043 \/ 27-48043\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eGTIN \/ UPC: \u003cstrong\u003e745061155732\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eApproximate shipping dimensions: \u003cstrong\u003e3.78\" x 3.78\" x 0.25\"\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eApproximate shipping weight: \u003cstrong\u003e0.01 lb\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eUsed in MerCruiser exhaust manifold \/ elbow and end-cap service layouts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe strongest supportable fitment for 480431 is \u003cstrong\u003eMerCruiser exhaust manifold end cap service\u003c\/strong\u003e across many legacy MerCruiser gasoline engines. Current where-used references include applications such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e120 \/ 2.5L GM 153 I\/L4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e140 \/ 3.0L GM 181 I\/L4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e165 GM 250 I\/L6\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e200 GM 292 I\/L6\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e470 Mercury 224 I\/L4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSelect older \u003cstrong\u003eGM 305, 327, 350, 427, 454, and 482 V8\u003c\/strong\u003e MerCruiser applications\u003c\/li\u003e\n\u003cli\u003eSelect exhaust manifold, elbow, cooling-system, and gasket-set component diagrams where this end cap gasket is specified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSerial Number Fitment Notice\u003c\/h2\u003e\n\u003cp\u003eVerify fitment by exact \u003cstrong\u003eengine serial number\u003c\/strong\u003e and the correct MerCruiser \u003cstrong\u003eexhaust manifold \/ end cap\u003c\/strong\u003e parts diagram before ordering. This gasket appears across many older MerCruiser engine families, and exhaust manifold layouts can vary by engine model, year range, cooling configuration, and manifold design.\u003c\/p\u003e\n\u003ch2\u003eWhen This Part Needs Replacement\u003c\/h2\u003e\n\u003cp\u003eReplace this gasket when the exhaust manifold end cap is removed, when the existing gasket is torn or compressed, or when there is leakage at the end cap sealing surface. Reusing an old exhaust manifold gasket can lead to sealing issues and repeat labor, especially on older cast manifold assemblies.\u003c\/p\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eClean the manifold and end cap mating surfaces before installation. Confirm the correct gasket position in the parts diagram, inspect the end cap and fasteners for corrosion or pitting, and replace any related hardware or sealing parts that are no longer serviceable. This gasket should be matched by part number and diagram callout rather than by shape alone.\u003c\/p\u003e\n\u003ch2\u003eAlternate \/ Superseded Part Numbers\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e480431 \/ 27-480431\u003c\/strong\u003e is the active Mercury gasket number. Earlier related numbers include \u003cstrong\u003e48043 \/ 27-48043\u003c\/strong\u003e and \u003cstrong\u003e27-48043-1\u003c\/strong\u003e. Some cross-reference sources also associate this gasket family with aftermarket reference \u003cstrong\u003e18-2832\u003c\/strong\u003e. Always confirm against the current Mercury parts diagram before substituting.\u003c\/p\u003e\n\u003ch2\u003eParts Desk Insight\u003c\/h2\u003e\n\u003cp\u003eWith exhaust manifold gaskets, the important match is the \u003cstrong\u003eexact manifold style and end-cap diagram\u003c\/strong\u003e, not just the engine size. A quick serial-number check helps avoid mixing up similar gaskets used across older MerCruiser manifold and elbow assemblies.\u003c\/p\u003e\n\u003cp\u003eShips in 1–3 business days for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563861049380,"sku":"480431","price":8.09,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/4c70e0b1-daa2-4a28-85f8-a8e1941f6c94.png?v=1777414589","url":"https:\/\/marisolmarine.com\/products\/merc-325","provider":"Marisol Marine Company","version":"1.0","type":"link"}