{"product_id":"merc-742","title":"Mercury MerCruiser Black Oxide Screw 438-14 x 2.060 843917","description":"\u003cp\u003eMercury MerCruiser 843917 is a genuine OEM \u003cstrong\u003eblack oxide screw\u003c\/strong\u003e sized \u003cstrong\u003e.438-14 x 2.060\u003c\/strong\u003e. Current Mercury dealer references show \u003cstrong\u003e843917\u003c\/strong\u003e superseded to \u003cstrong\u003e8M0000463\u003c\/strong\u003e, which is the current functional replacement part number.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Mercury Marine OEM part number \u003cstrong\u003e843917\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eCurrent replacement part number is \u003cstrong\u003e8M0000463\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eSize: \u003cstrong\u003e.438-14 x 2.060\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eFinish: \u003cstrong\u003eblack oxide\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eCurrent dealer listing shows \u003cstrong\u003eGTIN 745061677548\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eCurrent dealer shipping specs are approximately \u003cstrong\u003e0.13 lb\u003c\/strong\u003e, \u003cstrong\u003e2.50 in. x 0.75 in. x 0.75 in.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe strongest supportable fitment for 843917 is \u003cstrong\u003eMercury MerCruiser high-performance big-block engine service\u003c\/strong\u003e, with current dealer where-used references specifically showing \u003cstrong\u003e525 EFI\u003c\/strong\u003e and \u003cstrong\u003e600 SCi\u003c\/strong\u003e applications. Current OEM-style parts diagrams place the replacement \u003cstrong\u003e8M0000463\u003c\/strong\u003e in internal engine assemblies on those engine families.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eVerify fitment by exact \u003cstrong\u003eengine serial number\u003c\/strong\u003e and the correct \u003cstrong\u003einternal engine parts diagram\u003c\/strong\u003e before ordering. Current Mercury references show this screw in multiple internal assembly views, so serial-based confirmation is the safest way to match the correct screw location and replacement number.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplace this screw when the original is damaged, corroded, stretched, rounded, or removed during internal engine service and no longer suitable for reuse. Since current parts diagrams place it in internal engine assemblies, correct size, condition, and finish matter more than appearance alone. This is a practical service inference based on its documented assembly use.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eInstall this part only after confirming the correct Mercury MerCruiser engine diagram for the engine being serviced. Current OEM-style references place \u003cstrong\u003e8M0000463\u003c\/strong\u003e in \u003cstrong\u003ecylinder block \/ camshaft and crankshaft\u003c\/strong\u003e and \u003cstrong\u003ecylinder head\u003c\/strong\u003e assemblies, where it is described as a \u003cstrong\u003ecenter caps outer screw\u003c\/strong\u003e or \u003cstrong\u003ecrankshaft bearing cap screw\u003c\/strong\u003e in some layouts.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eCurrent sources show \u003cstrong\u003e8M0000463\u003c\/strong\u003e as the active replacement for \u003cstrong\u003e843917\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFor internal engine hardware like this, the important match is the \u003cstrong\u003eexact assembly location and serial-number-based diagram\u003c\/strong\u003e, not just the thread size. On 525 EFI and 600 SCi engines, a quick parts-book check is the safest way to make sure this screw is being ordered for the correct spot.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563884544036,"sku":"843917","price":12.65,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/041849d7-9b72-4bb1-b989-7a339e3f44f2.png?v=1777051853","url":"https:\/\/marisolmarine.com\/products\/merc-742","provider":"Marisol Marine Company","version":"1.0","type":"link"}