{"product_id":"merc-111","title":"Mercury MerCruiser Quicksilver Bearing Carrier Key 30281","description":"\u003cp\u003eMercury MerCruiser Quicksilver 30281 is a genuine OEM \u003cstrong\u003ebearing carrier key\u003c\/strong\u003e used in select Mercury, Mariner, and MerCruiser lower-unit \/ gearcase service applications. The full Mercury part reference is commonly listed as \u003cstrong\u003e28-30281\u003c\/strong\u003e. This key helps locate and retain the bearing carrier in the gear housing, supporting correct lower-unit alignment and preventing unwanted carrier movement during operation.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Mercury Marine \/ Quicksilver OEM key.\u003c\/li\u003e\n\u003cli\u003ePart number \u003cstrong\u003e30281 \/ 28-30281\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eCommonly identified as a \u003cstrong\u003ebearing carrier key\u003c\/strong\u003e or \u003cstrong\u003elower-unit key\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eUsed in select Mercury, Mariner, and MerCruiser lower-unit \/ gearcase assemblies.\u003c\/li\u003e\n\u003cli\u003eSupports correct bearing carrier positioning in the gear housing.\u003c\/li\u003e\n\u003cli\u003eSmall OEM hardware part that should be matched by exact gearcase diagram.\u003c\/li\u003e\n\u003cli\u003eGTIN \/ UPC reference: \u003cstrong\u003e745061133983\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eApproximate package size reference: \u003cstrong\u003e1.00\" x 1.00\" x 0.25\"\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis is \u003cstrong\u003enot an engine-only part\u003c\/strong\u003e. The strongest supportable fitment is by \u003cstrong\u003egearcase, lower unit, drive model, and serial-number-based parts diagram\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eCommonly associated applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelect Mercury \/ Mariner outboards from roughly \u003cstrong\u003e35 HP through 225 HP\u003c\/strong\u003e, depending on model and serial range.\u003c\/li\u003e\n\u003cli\u003eSelect high-performance Mercury outboard lower units, including \u003cstrong\u003eXR\u003c\/strong\u003e, \u003cstrong\u003ePro Max \/ Super Mag\u003c\/strong\u003e, \u003cstrong\u003eXS\u003c\/strong\u003e, and related performance gearcase families.\u003c\/li\u003e\n\u003cli\u003eSelect MerCruiser sterndrive applications including \u003cstrong\u003eAlpha One\u003c\/strong\u003e, \u003cstrong\u003eBravo\u003c\/strong\u003e, \u003cstrong\u003eTR \/ TRS\u003c\/strong\u003e, and \u003cstrong\u003eSSM\u003c\/strong\u003e drive families where this key is specified.\u003c\/li\u003e\n\u003cli\u003eSelect lower-unit bearing carrier service layouts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBecause 30281 appears across many Mercury and MerCruiser product families, the exact diagram callout matters more than the engine horsepower alone.\u003c\/p\u003e\n\u003ch2\u003eSerial Number Fitment Notice\u003c\/h2\u003e\n\u003cp\u003eVerify fitment by exact \u003cstrong\u003eengine, drive, or gearcase serial number\u003c\/strong\u003e and the correct Mercury parts diagram before ordering. This key appears in many lower-unit and bearing carrier layouts, and similar small keys can look close while fitting different gearcase assemblies.\u003c\/p\u003e\n\u003ch2\u003eWhen This Part Needs Replacement\u003c\/h2\u003e\n\u003cp\u003eReplace this key when the bearing carrier is removed, when the original key is damaged, worn, corroded, missing, or no longer fits securely in the gearcase. It should also be inspected during lower-unit service where the carrier has moved, loosened, or been removed for seal, bearing, or gearcase repair.\u003c\/p\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eInstall 30281 \/ 28-30281 only after confirming the correct bearing carrier and gearcase diagram. Inspect the carrier, gear housing keyway, seals, and related retaining hardware during service. The key must seat correctly in the carrier location to maintain proper assembly alignment.\u003c\/p\u003e\n\u003ch2\u003eAlternate \/ Superseded Part Numbers\u003c\/h2\u003e\n\u003cp\u003eThe active OEM Mercury part number for this listing is \u003cstrong\u003e30281 \/ 28-30281\u003c\/strong\u003e. Related aftermarket or cross-reference numbers commonly associated with this key include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eREC28-30281\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eGLM 11080\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eParts Desk Insight\u003c\/h2\u003e\n\u003cp\u003eThe easy mistake with this key is treating it like generic key stock. On Mercury and MerCruiser lower units, the correct match is the \u003cstrong\u003ebearing carrier diagram and gearcase serial number\u003c\/strong\u003e, because a small difference in key size or location can affect how the carrier seats in the housing.\u003c\/p\u003e\n\u003cp\u003eShips same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563842928676,"sku":"30281","price":4.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/e5e4ae27-be0c-4c3b-9293-530bcad1b7c7.png?v=1777415766","url":"https:\/\/marisolmarine.com\/products\/merc-111","provider":"Marisol Marine Company","version":"1.0","type":"link"}