{"product_id":"mercury-quicksilver-bearing-carrier-seal-8m0204670-pack-of-5","title":"Mercury MerCruiser Quicksilver Bearing Carrier Seal 8M0204670","description":"\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 8M0204670 (Mercury service ref: 26-8M0204670)\u003cbr\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Mercury \/ Quicksilver (OEM Genuine)\u003cbr\u003e\u003cstrong\u003eOfficial Part Type:\u003c\/strong\u003e Bearing carrier \/ gearcase oil seal\u003cbr\u003e\u003cstrong\u003eGTIN \/ UPC:\u003c\/strong\u003e 745061178106\u003c\/p\u003e\n\n\u003cp\u003eGenuine Mercury Quicksilver 8M0204670 is a bearing carrier seal for compatible Mercury outboard and MerCruiser gearcase assemblies. It installs around the propeller shaft at the bearing carrier to prevent water from entering the gearcase and protect internal components from contamination. Mercury identifies it as the \u003cstrong\u003einner bearing carrier seal\u003c\/strong\u003e on applicable assemblies — it should not be confused with the separate outer propeller-shaft seal used alongside it in many Mercury bearing carrier configurations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatible Applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercury FourStroke and Pro XS outboards — including 115 HP FourStroke \/ Pro XS configurations\u003c\/li\u003e\n\u003cli\u003eMercury and MerCruiser bearing carrier gearcase assemblies across legacy and current gearcase families\u003c\/li\u003e\n\u003cli\u003eVarious Mercury outboard gear housing and propeller shaft assemblies per Mercury parts diagrams\u003c\/li\u003e\n\u003cli\u003eConfirm fitment by engine or drive serial number and gearcase parts diagram before ordering — some assemblies require more than one seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eEngine Family:\u003c\/strong\u003e Mercury FourStroke, Pro XS, and MerCruiser gearcase families\u003cbr\u003e\u003cstrong\u003eSystem:\u003c\/strong\u003e Gearcase \/ lower unit sealing\u003cbr\u003e\u003cstrong\u003eDiagram Position:\u003c\/strong\u003e Inner seal — propeller shaft bearing carrier assembly\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSerial Number Requirement\u003c\/strong\u003e\u003cbr\u003eFitment depends on the exact gearcase, bearing carrier, and serial number range. On applicable Mercury outboard gearcases, 8M0204670 is the inside seal; a separate outer seal is used in the same carrier assembly. Always verify your specific serial number against the gearcase parts diagram before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuperseded \/ Alternate Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCurrent OEM: \u003cstrong\u003e8M0204670\u003c\/strong\u003e \/ \u003cstrong\u003e26-8M0204670\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupersedes: \u003cstrong\u003e26-76868\u003c\/strong\u003e \/ \u003cstrong\u003e76868\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdditional legacy references: \u003cstrong\u003e30550\u003c\/strong\u003e, \u003cstrong\u003e70019\u003c\/strong\u003e, \u003cstrong\u003e73838\u003c\/strong\u003e, \u003cstrong\u003e76868B\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen to Replace\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhenever the bearing carrier is removed — used seals should not be reinstalled\u003c\/li\u003e\n\u003cli\u003eWhen gear lube appears milky or discoloured, indicating water contamination\u003c\/li\u003e\n\u003cli\u003eWhen gear oil is leaking around the propeller shaft\u003c\/li\u003e\n\u003cli\u003eWhen the seal lip is visibly damaged, deformed, or torn during disassembly\u003c\/li\u003e\n\u003cli\u003eAs part of a complete gearcase rebuild or overhaul\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eService Interval\u003c\/strong\u003e\u003cbr\u003eInspect the sealing area whenever gear lube is changed (every 100 hours or annually). Replace the seal any time the bearing carrier is removed — regardless of apparent condition. Reinstalling a used seal is a leading cause of repeat gearcase leaks.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInspect the propeller shaft and bearing carrier sealing surfaces for scoring or wear before installing\u003c\/li\u003e\n\u003cli\u003eConfirm installation depth, orientation, and quantity against the Mercury service manual or gearcase parts diagram — some assemblies use more than one seal in the carrier stack\u003c\/li\u003e\n\u003cli\u003eLubricate seal lips as specified in the service manual\u003c\/li\u003e\n\u003cli\u003ePressure-test the gearcase after assembly before returning to service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eTechnical FAQ\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat did 8M0204670 replace?\u003c\/strong\u003e\u003cbr\u003e8M0204670 supersedes 26-76868 \/ 76868. If you have been ordering 76868, this is the current OEM replacement. Legacy references in this seal family include 30550, 70019, 73838, and 76868B.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many seals does my gearcase need?\u003c\/strong\u003e\u003cbr\u003eIt depends on the engine model and gearcase design. Some Mercury assemblies use a single bearing carrier seal; others require two in the same carrier. Check the parts diagram for your specific serial number.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I reuse the seal if it looks undamaged?\u003c\/strong\u003e\u003cbr\u003eNo. Replace the seal any time it is removed. A seal that appears intact may no longer provide a reliable interference fit after removal — this is a leading cause of repeat leaks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this the inner or outer seal?\u003c\/strong\u003e\u003cbr\u003e8M0204670 is the \u003cstrong\u003einner\u003c\/strong\u003e bearing carrier seal on applicable assemblies. A separate outer seal is used alongside it in many Mercury configurations. Confirm both part numbers and positions from your gearcase diagram before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eParts Desk Insights\u003c\/strong\u003e\u003cbr\u003eThe most common customer mistake is finding milky gear lube, changing the fluid, and skipping the seal replacement — which guarantees the same problem returns. Any time water gets into the gearcase, the seals come out. The critical detail with this part: confirm diagram position and quantity, as some Mercury assemblies use more than one seal in the bearing carrier stack. The inner\/outer distinction is important — do not substitute this seal for the outer propeller shaft seal without verifying both part numbers from the diagram.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRelated Parts\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131445784612\"\u003eMercury Outboard Propeller Shaft Oil Seal — 8M0205729\u003c\/a\u003e — companion outer propeller shaft seal\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11136499318820\"\u003eMercury MerCruiser Bearing Carrier Seal – Inside, 26-14077 | MR, Alpha One, Alpha One Gen II\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131432382500\"\u003eMercury MerCruiser Bravo Bearing Carrier Oil Seal 880596502\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11136499351588\"\u003eMercury MerCruiser Fish Line Cutting Seal – 26-12224 | Alpha One Gen II, Alpha One SS\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131406463012\"\u003eMercury Mariner Lower Unit Gear Housing Seal Kit — 26-43035A4\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131401809956\"\u003eMercury Quicksilver Lower Unit Seal Kit 26-33144A2 | MerCruiser IA IB IC R MR Alpha One Gen 1\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":51324694560804,"sku":"8M0204670","price":28.79,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/7d348b58-2218-47fd-afc2-67f284b3001a.png?v=1788203028","url":"https:\/\/marisolmarine.com\/products\/mercury-quicksilver-bearing-carrier-seal-8m0204670-pack-of-5","provider":"Marisol Marine Company","version":"1.0","type":"link"}