{"product_id":"merc-258","title":"Mercury MerCruiser #10-32 Well Nut - 11-42290","description":"\u003cp\u003eThe Mercury MerCruiser Quicksilver \u003cstrong\u003e11-42290\u003c\/strong\u003e is a genuine Mercury Marine OEM \u003cstrong\u003ewell nut\u003c\/strong\u003e used as diagram-specific expansion mounting hardware on select Mercury, Mariner, and MerCruiser assemblies. This fastener uses a rubber sleeve with an internal threaded insert to provide a blind-mount fastening point where access behind the panel or housing is limited. It is commonly used where the factory parts diagram calls for \u003cstrong\u003e42290 \/ 11-42290\u003c\/strong\u003e in control, cowling, bracket, or panel-mounting locations.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Mercury Marine factory OEM well nut.\u003c\/li\u003e\n\u003cli\u003eMercury\/MerCruiser part number: \u003cstrong\u003e11-42290\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: \u003cstrong\u003e42290\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eExpansion-style blind mounting fastener.\u003c\/li\u003e\n\u003cli\u003eCommonly described as a rubber well nut with internal threaded insert.\u003c\/li\u003e\n\u003cli\u003eThread size: \u003cstrong\u003e#10-32\u003c\/strong\u003e, where specified by the matching screw and diagram.\u003c\/li\u003e\n\u003cli\u003eApproximate dimensions: \u003cstrong\u003e1.13 in. L x 0.63 in. W x 0.63 in. H\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eHelps provide vibration isolation and a secure mounting point on thin panels, cowling pieces, control housings, and bracket locations where specified.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eApplication Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eCommon application context includes select Mercury, Mariner, and MerCruiser assemblies by serial number, control model, and diagram location, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelect Mercury remote control assemblies where the diagram calls for \u003cstrong\u003e11-42290 \/ 42290\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelect single-lever control housing or lower cover mounting locations where specified\u003c\/li\u003e\n\u003cli\u003eSelect engine cowling, air attenuator, bracket, and panel-mounting locations where specified\u003c\/li\u003e\n\u003cli\u003eThin-wall fiberglass, aluminum, plastic, or hollow mounting points where Mercury specifies this well nut\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUse this well nut only where the Mercury\/MerCruiser parts diagram specifically calls for \u003cstrong\u003e11-42290 \/ 42290\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eConfirm fitment by engine serial number, control assembly number, mounting panel thickness, screw size, and exact Mercury\/MerCruiser parts diagram before ordering. Mercury uses different well nuts, rubber mounts, clips, screws, washers, and inserts across similar remote control, cowling, and bracket assemblies, so matching the thread size alone is not enough.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplace this well nut if the rubber sleeve is cracked, hardened, swollen, torn, loose, missing, or no longer expands properly behind the mounting surface. It should also be replaced if the threaded insert spins, strips, corrodes, pulls out, or no longer holds the matching screw securely. A worn well nut can allow control panels, covers, brackets, or cowling parts to rattle, loosen, or leak around the mounting point.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eInstall this well nut in the exact mounting hole and orientation shown in the Mercury parts diagram. Make sure the hole is clean and correctly sized before installation. Tighten the matching #10-32 screw only enough to expand the rubber sleeve and secure the component; overtightening can damage the rubber body, strip the insert, or distort thin panels. Inspect the matching screw, washer, cover, control housing, and mounting surface while the hardware is apart.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e11-42290\u003c\/strong\u003e — Mercury\/MerCruiser formatted part number\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e42290\u003c\/strong\u003e — Manufacturer part number\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eWell nuts are useful in marine assemblies because they can secure parts where there is no rear access for a standard nut. They also help reduce vibration transfer through thin covers and panels. For best fit, match the well nut to the Mercury diagram, screw size, and mounting hole rather than substituting a generic hardware-store insert.\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":43563858460708,"sku":"42290","price":3.28,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/bf9931a1-33e7-4528-adf3-0274bb5ff0c8.png?v=1781138015","url":"https:\/\/marisolmarine.com\/products\/merc-258","provider":"Marisol Marine Company","version":"1.0","type":"link"}