{"product_id":"volvo-896","title":"Volvo Penta Upper Gear Housing Flange Screw 3888122","description":"\u003ch2\u003eVolvo Penta Upper Gear Housing Flange Screw — Part No. 3888122\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3888122\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlange Screw \/ Sterndrive Fastener\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSterndrive — Upper Gear Housing \u0026amp; Shift Mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiagram Position\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUpper gear housing and shift-mechanism assembly; typically installed in groups of 4–5 depending on position\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupersedes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e990859 → 3888122\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLater Service Reference\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21906721 (later diagram service number — verify current EPC status before substituting)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight (estimated)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.05 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis is the OEM flange screw for selected Volvo Penta SX-A, DPS-A, and DPS-B sterndrive assemblies. Part 3888122 appears at multiple positions within the upper gear housing and shift-mechanism exploded views, so it must be matched by diagram position — not by screw appearance alone.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eDiagram-confirmed applications:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSX-A sterndrive — upper gear housing and shift-mechanism assemblies\u003c\/li\u003e\n  \u003cli\u003eDPS-A sterndrive — upper gear housing and shift-mechanism assemblies\u003c\/li\u003e\n  \u003cli\u003eDPS-B sterndrive — upper gear housing and shift-mechanism assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eBroader references also associate 3888122 with selected FWD and transom-shield applications, and later Volvo Penta V6\/V8 installations using these drive systems. Confirm from the drive-specific exploded diagram.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFitment Notice\u003c\/h3\u003e\n\u003cp\u003eVolvo Penta uses several flange screws in the same upper gear housing, including 990859, 3888122, 21906721, and 990860, depending on production revision and fastener location. Always confirm the exact drive model, serial number, and exploded-view diagram position before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cp\u003eReplace this flange screw if you find:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDamaged or stretched threads\u003c\/li\u003e\n  \u003cli\u003eRounded or damaged drive head\u003c\/li\u003e\n  \u003cli\u003eSevere corrosion on the fastener or flange seating surface\u003c\/li\u003e\n  \u003cli\u003eEvidence of over-tightening\u003c\/li\u003e\n  \u003cli\u003eRemoval from an assembly where the Volvo Penta service procedure specifies one-time-use replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eInspect mating threads and the flange-contact surface before installation. Because 3888122 appears at several different drive locations, use the torque specification for the specific assembly being serviced — not a generic fastener torque. On upper gear housing assemblies, this screw is installed alongside the upper cover, gasket, bearing carrier, and related housing hardware.\u003c\/p\u003e\n\n\u003ch3\u003eSuperseded \/ Alternate Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEarlier:\u003c\/strong\u003e 990859\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent OEM (this part):\u003c\/strong\u003e 3888122\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLater service reference:\u003c\/strong\u003e 21906721 — verify via Volvo Penta EPC before substituting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBest use:\u003c\/strong\u003e Order 3888122 when your drive diagram confirms this part number at the specific fastener position being serviced. This screw is the right choice for upper gear housing and shift-mechanism service on SX-A, DPS-A, and DPS-B drives where the diagram calls out 3888122.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon customer issue:\u003c\/strong\u003e Buyers sometimes order by screw appearance or a generic size rather than matching the OEM number and diagram position. Because multiple flange screws are used in the same housing at different positions, using the wrong fastener can result in improper torque retention or sealing. Always cross-reference the exploded view for the exact position you are servicing.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43564037439524,"sku":"3888122","price":2.9,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/e563b088-1fce-445e-9530-fd5975e71a4b.png?v=1788656664","url":"https:\/\/marisolmarine.com\/products\/volvo-896","provider":"Marisol Marine Company","version":"1.0","type":"link"}