{"product_id":"drive-unit-seal-kit-fits-volvo-penta-280dp-290dp-dp-a-dp-b-dp-c-dp-d-replaces-875741-876266","title":"Drive Unit Seal Kit – Fits Volvo Penta 280DP 290DP DP-A DP-B DP-C DP-D (Replaces 875741, 876266)","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis Drive Unit Seal Kit fits Volvo Penta 280DP, 290DP, DP-A, DP-B, DP-C, and DP-D series drives, providing complete sealing for both upper and lower drive units. Designed for AQ280DP, AQ290DP, DP-A, DP-A1, DP-A2, DP-B, DP-C, and DP-D models, this kit ensures reliable protection against water intrusion and maintains proper drive lubrication.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket seal kit directly replaces Volvo Penta part numbers 875741 and 876266.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete seal kit for upper and lower drive unit service\u003c\/li\u003e\n\u003cli\u003eCovers multiple DP-series drive configurations\u003c\/li\u003e\n\u003cli\u003eDirect-fit replacement for comprehensive drive maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e875741\u003c\/td\u003e\n        \u003ctd\u003ePrimary OEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e876266\u003c\/td\u003e\n        \u003ctd\u003eAlternate OEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eAQ280DP\u003c\/td\u003e\n        \u003ctd\u003e875741, 876266\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eAQ290DP\u003c\/td\u003e\n        \u003ctd\u003e875741, 876266\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eDP-A\u003c\/td\u003e\n        \u003ctd\u003e875741, 876266\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eDP-A1\u003c\/td\u003e\n        \u003ctd\u003e875741, 876266\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eDP-A2\u003c\/td\u003e\n        \u003ctd\u003e875741, 876266\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eDP-B\u003c\/td\u003e\n        \u003ctd\u003e875741, 876266\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eDP-C\u003c\/td\u003e\n        \u003ctd\u003e875741, 876266\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003eDP-D\u003c\/td\u003e\n        \u003ctd\u003e875741, 876266\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003ePart Type\u003c\/dt\u003e\n  \u003cdd\u003eDrive Unit Seal Kit\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eUpper and lower drive unit sealing\u003c\/dd\u003e\n  \u003cdt\u003eReplaces OEM\u003c\/dt\u003e\n  \u003cdd\u003e875741, 876266\u003c\/dd\u003e\n  \u003cdt\u003eCompatible Drives\u003c\/dt\u003e\n  \u003cdd\u003eVolvo Penta 280DP, 290DP, DP-A, DP-B, DP-C, DP-D series\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eComplete seal kit for upper and lower drive unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDrain all gear oil from upper and lower drive units before beginning disassembly.\u003c\/li\u003e\n\u003cli\u003eRemove the drive unit from the transom assembly following manufacturer service procedures.\u003c\/li\u003e\n\u003cli\u003eCarefully separate upper and lower drive housings, noting the position of all components.\u003c\/li\u003e\n\u003cli\u003eRemove all old seals, gaskets, and O-rings from mating surfaces.\u003c\/li\u003e\n\u003cli\u003eThoroughly clean all sealing surfaces with a suitable solvent and inspect for damage or corrosion.\u003c\/li\u003e\n\u003cli\u003eInstall new seals from the kit in the reverse order of removal, ensuring proper orientation.\u003c\/li\u003e\n\u003cli\u003eLubricate seal lips lightly with gear oil or assembly lubricant before installation.\u003c\/li\u003e\n\u003cli\u003eReassemble drive housings with appropriate torque specifications for all fasteners.\u003c\/li\u003e\n\u003cli\u003eReinstall the drive unit to the transom, checking alignment and engagement.\u003c\/li\u003e\n\u003cli\u003eRefill with the correct grade and quantity of gear oil per manufacturer specifications.\u003c\/li\u003e\n\u003cli\u003eCheck for leaks after initial operation and re-torque fasteners as needed.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if my drive unit seals need replacement?\u003c\/summary\u003e\u003cp\u003eCommon signs include gear oil leaking from the drive unit, milky or contaminated gear oil indicating water intrusion, visible oil residue around drive housing seams, or difficulty maintaining proper gear oil levels. Regular inspection during seasonal maintenance is recommended.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eCan this kit be used for both upper and lower units?\u003c\/summary\u003e\u003cp\u003eYes, this seal kit is designed to service both the upper and lower drive unit sealing requirements for the compatible Volvo Penta DP-series drives listed in the compatibility table.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWhat's the difference between DP-A, DP-B, DP-C, and DP-D drives?\u003c\/summary\u003e\u003cp\u003eThese designations represent different generations and configurations of Volvo Penta's DuoProp drive systems, with variations in gear ratios, propeller configurations, and power ratings. This seal kit is engineered to fit all listed variants, but always verify your specific drive model before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eHow often should drive unit seals be replaced?\u003c\/summary\u003e\u003cp\u003eSeals should be replaced whenever the drive is disassembled for service, typically during major maintenance intervals or propeller shaft work. Also replace immediately if you notice leaks or water contamination in the gear oil.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eDo I need any special tools for installation?\u003c\/summary\u003e\u003cp\u003eBasic hand tools, torque wrench, seal drivers or appropriate-sized sockets, and a service manual with torque specifications are recommended. Some drive configurations may require specialized pullers or alignment tools for proper reassembly.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWill this kit fit 280 and 290 single-prop drives?\u003c\/summary\u003e\u003cp\u003eThis kit is specifically designed for DuoProp (DP) series drives including the 280DP and 290DP variants. Verify your drive model designation to ensure compatibility, as single-prop drives may require different seal kits.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify images\/specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n\u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n\u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":51025604903227,"sku":"22SK007","price":50.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/A663f8932798742c39e7a38e6643304145.webp?v=1772931772","url":"https:\/\/seasierra.com\/products\/drive-unit-seal-kit-fits-volvo-penta-280dp-290dp-dp-a-dp-b-dp-c-dp-d-replaces-875741-876266","provider":"SeaSierra","version":"1.0","type":"link"}