{"title":"MerCruiser 240HP 4-Stroke Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"max-width: 960px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003cp\u003eThis page is dedicated to MerCruiser 4-Stroke 240HP sterndrive\/inboard engines. Use it to find compatible parts and practical service information. Below you’ll find routine maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main MerCruiser collection. Scroll to the bottom of this page to start browsing parts for this engine. On the collection page, use the Filter \u0026amp; Sort controls to narrow results by horsepower, year range, and part category\/section.\u003c\/p\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser\" style=\"display:inline-block; padding:10px 16px; background:#0b6; color:#fff; text-decoration:none; border-radius:4px;\"\u003eBrowse All MerCruiser Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width: 960px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 240HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate serial plates: MerCruiser uses serial numbers on the engine (often on a sticker near the flame arrestor or valve cover), the sterndrive (on the drive housing), and the transom assembly. Record all three if available.\u003c\/li\u003e\n    \u003cli\u003eUse serial numbers for parts lookup: Unlike some outboards, MerCruiser parts are referenced primarily by serial number ranges rather than a simple model code. The serial helps determine exact assemblies and year range.\u003c\/li\u003e\n    \u003cli\u003eDistinguish platforms: 240HP packages may be based on a 4.3L V6 or 5.0L V8. Also note the drive family (Alpha vs. Bravo). Alpha drives typically have the raw-water impeller in the drive; many Bravo packages use an engine-mounted sea water pump.\u003c\/li\u003e\n    \u003cli\u003e4‑Stroke service cues: These engines have a full-pressure lubrication system with a replaceable oil filter; follow the oil and filter intervals in your official service manual.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"max-width: 960px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003e4.3L V6 Package\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e90° V6 4‑stroke (carbureted or EFI), coupled to Alpha or Bravo sterndrive depending on package\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e4.3L V6 packages with Alpha\/Bravo drives; serial-number variations define exact components\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCompact layout, strong mid‑range torque, widely supported parts availability\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eRaw‑water pump location varies by drive family; service parts (filters, ignition, anodes) are serial‑specific\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003e5.0L V8 Package\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e90° V8 4‑stroke (carb\/TBI\/EFI variants), commonly paired with Alpha or Bravo drives\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e5.0L V8 packages around the 240HP class; exact parts determined by engine and drive serials\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eBroad torque curve, smooth power delivery, extensive aftermarket support\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCooling and fuel components vary by fuel system and drive; verify by serial number before ordering\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"max-width: 960px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are typical guidelines for many MerCruiser 4‑stroke sterndrive packages. Always follow the official service manual and your exact serial number range.\u003c\/p\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEngine oil + filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFirst 20–25 hrs, then every 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eUse marine 4‑stroke oil meeting NMMA FC‑W; replace the oil filter at each oil change\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-oil-filters\"\u003eMerCruiser Oil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGear oil (drive unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hrs or annually; before winter storage\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect for water or metal on drain plug magnet; pressure test if contamination is found\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-service-maintenance-kits\"\u003eMerCruiser Service \u0026amp; Maintenance Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect at 100 hrs; replace as needed or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck heat range and gap to spec; replace if fouled or worn\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 100 hrs or sooner with poor fuel\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eReplace canister and O‑ring; drain water frequently if equipped\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-fuel-filters\"\u003eMerCruiser Fuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWater pump impeller \/ sea pump kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eEvery 2–3 seasons or 200 hrs (inspect annually)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAlpha drives: impeller in drive. Many Bravo packages: engine‑mounted sea pump; verify by serial\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-impellers\"\u003eMerCruiser Impellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAnodes (zinc\/aluminum\/magnesium)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect every 50 hrs; replace when \u0026lt; 50% remains\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eMatch anode material to water type (salt\/brackish\/fresh) and ensure bonding continuity\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-anodes\"\u003eMerCruiser Anodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"max-width: 960px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service Kits — \u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-service-maintenance-kits\"\u003eMerCruiser Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System — \u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-impellers\"\u003eMerCruiser Impellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System — \u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-fuel-filters\"\u003eMerCruiser Fuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCharging System — \u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-alternators\"\u003eMerCruiser Alternators\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eStarting System — \u003ca href=\"https:\/\/seasierra.com\/collections\/starters\"\u003eStarters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection — \u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-anodes\"\u003eMerCruiser Anodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion — \u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-propellers\"\u003eMerCruiser Propellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGaskets \u0026amp; Seals — \u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser-gaskets\"\u003eMerCruiser Gaskets\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width: 960px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eOverheat alarm \/ low water pressure\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eInspect drive intake screens, sea strainer (if equipped), hoses for kinks, and impeller condition; verify thermostat operation\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eWater pump\/impeller kit, intake screen, thermostat, cooling hoses\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck fuel quality, water‑separating filter, spark plugs, throttle\/EFI operation, and propeller condition\/pitch\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eFuel filter, spark plugs, fuel pump, propeller\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eVerify battery voltage and connections, inspect plugs and ignition leads, check for vacuum leaks; on EFI, inspect IAC\/idle air passages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eSpark plugs, starter, alternator, gaskets\/hoses\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eCheck gear oil level\/condition, inspect for water intrusion, examine prop shaft seals (fishing line), and u‑joint bellows condition\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eLower unit seal kit, gear lube, prop hardware\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eRapid anode loss \/ corrosion\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eConfirm correct anode material for water type; inspect bonding\/grounding straps and shore power leakage\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #eee;\"\u003eAnodes, bonding wires\/straps\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"max-width: 960px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eOften not. MerCruiser parts are tied to engine, drive, and transom assembly serial numbers, as well as fuel system type (carb\/TBI\/EFI) and drive family (Alpha\/Bravo). Always verify by serial number before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eInspect annually and replace about every 2–3 seasons or 200 hours. Operated in sandy or silty water, replace more often. Alpha drives use a drive‑mounted pump; many Bravo packages use an engine‑mounted sea pump—confirm which you have.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the drive gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eTypically every 100 hours or annually, and always before winter storage. If water or metal is found, pressure test the drive and repair seals before returning to service.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the engine serial number, sterndrive serial number, transom assembly serial number, drive family (Alpha\/Bravo), and fuel system type (carb\/TBI\/EFI). A clear photo of the nameplate also helps.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width: 960px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003cp\u003eReady to find the exact parts for your MerCruiser by horsepower, year, and model? Browse the full collection and use Filter \u0026amp; Sort to narrow your results.\u003c\/p\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercruiser\" style=\"display:inline-block; padding:10px 16px; background:#0b6; color:#fff; text-decoration:none; border-radius:4px;\"\u003eShop MerCruiser Parts\u003c\/a\u003e\u003c\/p\u003e\n  \u003cp style=\"color:#555;\"\u003eIf you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"exhaust-elbow-gasket-fits-volvo-penta-omc-stern-drive-2-5l-3-0l-replaces-3850495-908013","title":"Exhaust Elbow Gasket – Fits Volvo Penta\/OMC Stern Drive 2.5L \u0026 3.0L (Replaces 3850495, 908013)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\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 high-quality \u003cstrong\u003eExhaust Elbow Gasket\u003c\/strong\u003e creates a secure, leak-free seal between the exhaust manifold and the riser or elbow. It is designed specifically for Volvo Penta 2.5L (120hp) and 3.0L (140hp) 4-stroke engines, as well as OMC Stern Drive 2.5L and 3.0L 4-stroke models.\u003c\/p\u003e\n\u003cp\u003eThis part is a direct replacement for several OEM and aftermarket part numbers, including Volvo Penta 3850495, OMC 908013 and 33770, Sierra 18-2875, GLM Marine 33770, and Mallory 9-42800.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEnsures a secure, reliable seal to prevent exhaust leaks.\u003c\/li\u003e\n  \u003cli\u003eEngineered for direct bolt-on installation with no modifications required.\u003c\/li\u003e\n  \u003cli\u003eMade from durable composite material to withstand the harsh marine environment.\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      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3850495\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e908013, 33770\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-2875\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM Marine\u003c\/td\u003e\n        \u003ctd\u003e33770\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMallory\u003c\/td\u003e\n        \u003ctd\u003e9-42800\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\u003cp\u003eFits a range of 4-stroke models from the OMC Stern Drive and Inboard lines.\u003c\/p\u003e\n\u003cp\u003eCompatible with select Volvo Penta 4-stroke inboard\/outboard engines.\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\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\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\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eStern Drive 3.0L\u003c\/td\u003e\n        \u003ctd\u003e140\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e908013, 33770\u003c\/td\u003e\n        \u003ctd\u003eCobra model\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eStern Drive 2.5L\u003c\/td\u003e\n        \u003ctd\u003e120\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e908013, 33770\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eInboard\u003c\/td\u003e\n        \u003ctd\u003e305\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e908013, 33770\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eStern Drive\u003c\/td\u003e\n        \u003ctd\u003e185-260\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e908013, 33770\u003c\/td\u003e\n        \u003ctd\u003eMultiple models: 185, 200, 225, 230, 240, 250, 260\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eStern Drive\u003c\/td\u003e\n        \u003ctd\u003e350\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e908013, 33770\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e3.0L\/181CI\u003c\/td\u003e\n        \u003ctd\u003e140\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e3850495\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n        \u003ctd\u003e2.5L\/153CI\u003c\/td\u003e\n        \u003ctd\u003e120\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e3850495\u003c\/td\u003e\n        \u003ctd\u003e\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\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eExhaust Elbow Gasket\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement, bolt-on\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eExhaust manifold to riser\/elbow\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eComposite\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e13.0 x 12.5 x 2.0 inches (330.2 x 317.5 x 50.8 mm)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e1 pound (0.45 kg)\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eCreates a secure seal between the exhaust elbow and manifold\/riser\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e2 x Exhaust Elbow Gasket (Replaces 3850495\/908013)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure the engine is completely cool before beginning work.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery to prevent accidental starting.\u003c\/li\u003e\n  \u003cli\u003eClose the water intake seacock. Drain water from the exhaust manifold.\u003c\/li\u003e\n  \u003cli\u003eCarefully disconnect any hoses attached to the exhaust elbow\/riser.\u003c\/li\u003e\n  \u003cli\u003eUnbolt and remove the old elbow\/riser from the exhaust manifold.\u003c\/li\u003e\n  \u003cli\u003eThoroughly clean both mating surfaces, removing all traces of the old gasket and any corrosion.\u003c\/li\u003e\n  \u003cli\u003ePlace the new gasket onto the manifold, aligning the bolt holes.\u003c\/li\u003e\n  \u003cli\u003eReinstall the elbow\/riser and tighten the bolts to the manufacturer's specified torque in the correct sequence.\u003c\/li\u003e\n  \u003cli\u003eReconnect all hoses, open the seacock, and reconnect the battery.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and carefully check for any exhaust or water leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I confirm this gasket fits my specific engine model and year?\u003c\/summary\u003e\n  \u003cp\u003eThe best method is to cross-reference your existing part number with those listed in our Part Number Matrix. Additionally, consult the Engine \u0026amp; Model Compatibility table. If your part number or engine model is not listed, this gasket may not be the correct fit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the common signs of a failed exhaust elbow gasket?\u003c\/summary\u003e\n  \u003cp\u003eSymptoms of a bad gasket include water leaking externally from the joint between the manifold and elbow, rust stains in this area, or engine overheating. Internal leaks can also allow water to enter the engine cylinders, causing significant damage.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this gasket sold individually or as a pair?\u003c\/summary\u003e\n  \u003cp\u003eThis package contains two gaskets, suitable for servicing engines that require one on each side or for keeping a spare. Please verify the contents listed under \"What's in the Box.\"\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I reuse my old gasket after removing the exhaust elbow?\u003c\/summary\u003e\n  \u003cp\u003eNo. Gaskets are designed for single use. They compress and form a seal that is compromised upon removal. Always use a new gasket during reassembly to ensure a leak-proof connection.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the recommended replacement interval?\u003c\/summary\u003e\n  \u003cp\u003eThere is no fixed replacement interval. Gaskets should be replaced whenever the exhaust manifold or riser\/elbow is removed for service or inspection. They should also be replaced immediately if signs of a leak are detected.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \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\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \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\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs 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\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50588532638011,"sku":"23GT318","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/3850495_7614f551-8bd3-4207-9186-def7522db64e.jpg?v=1757984549"},{"product_id":"washer-vent-screw-187-x-500-x-062-fits-mercury-mercruiser-marine-engines-replaces-12-49221","title":"Washer, Vent Screw (.187 x .500 x .062) – Fits Mercury\/Mercruiser Marine Engines (Replaces 12-49221)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\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 is a replacement \u003cstrong\u003eWasher, Vent Screw (.187 x .500 x .062)\u003c\/strong\u003e for a wide range of Mercury and Mercruiser marine applications. It is designed to fit various Mercury outboard engines from 45HP to 225HP (1967–Current) and also works with select MerCruiser sterndrive and inboard models, providing a reliable seal for the vent screw.\u003c\/p\u003e\n\u003cp\u003eThis part directly replaces Mercury OEM part numbers 12-49221 and 12-8M0204663, and is interchangeable with Sierra 18-2948, Mallory 9-43629, and GLM 31180.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade from durable neoprene rubber to ensure a proper seal and prevent leaks.\u003c\/li\u003e\n\u003cli\u003ePrecision-cut to OEM specifications for a direct-fit replacement.\u003c\/li\u003e\n\u003cli\u003eEssential for routine gearcase lubricant changes and 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\u003eSuperseded By\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e12-49221\u003c\/td\u003e\n        \u003ctd\u003e12-8M0204663\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e12-492211\u003c\/td\u003e\n        \u003ctd\u003e12-8M0204663\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-2948\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMallory\u003c\/td\u003e\n        \u003ctd\u003e9-43629\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n        \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e31180\u003c\/td\u003e\n        \u003ctd\u003e\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\u003cp\u003e\u003cb\u003eMercury Outboard Applications\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Mercury Outboard Applications\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eYears\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\u003e45 JET\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e50 (3 CYL.)\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e55 (3 CYL.)\u003c\/td\u003e\n\u003ctd\u003e55\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e60 (2 CYL.)\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e60 (3 CYL.)\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e65 JET\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e75 (3 CYL.)\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e80 JET\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e90 (3 CYL.)\u003c\/td\u003e\n\u003ctd\u003e90\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e100 (4 CYL.)\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e115 (4 CYL.)\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e125 (4 CYL.)\u003c\/td\u003e\n\u003ctd\u003e125\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e140 JET\u003c\/td\u003e\n\u003ctd\u003e140\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eV-135, V-150, V-175, V-200\u003c\/td\u003e\n\u003ctd\u003e135-200\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e150 EFI PRO MAX\/SUPER MAG\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e200 EFI PRO MAX\/SUPER MAG\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e225 EFI PRO MAX\/SUPER MAG\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cb\u003eMercury Jet Drive Applications\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Mercury Jet Drive Applications\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eYears\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\u003e175XR2 JET DRIVE\u003c\/td\u003e\n\u003ctd\u003e175\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e210 CARB JET DRIVE\u003c\/td\u003e\n\u003ctd\u003e210\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e240 EFI JET DRIVE\u003c\/td\u003e\n\u003ctd\u003e240\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cb\u003eMercury Inboard\/Sterndrive Applications\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Mercury Inboard\/Sterndrive Applications\"\u003e\n    \u003cthead\u003e\n       \u003ctr\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eYears\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\u003e525 EFI\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e565 EFI\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e600 SCi\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e662 SCi\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e700 SCi\u003c\/td\u003e\n\u003ctd\u003e1967–Current\u003c\/td\u003e\n\u003ctd\u003e12-49221\/12-8M0204663\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\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eNeoprene Rubber Washer\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eVent Screw Washer\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eNeoprene Rubber\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e.187\" ID x .500\" OD x .062\" Thickness (4.75mm x 12.7mm x 1.57mm)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e4.54g (0.16 oz)\u003c\/dd\u003e\n  \u003cdt\u003eColor\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003eOEM Part Number\u003c\/dt\u003e\n\u003cdd\u003eMercury 12-49221\u003c\/dd\u003e\n  \u003cdt\u003eSuperseded By\u003c\/dt\u003e\n\u003cdd\u003e12-8M0204663\u003c\/dd\u003e\n  \u003cdt\u003eUPC\u003c\/dt\u003e\n\u003cdd\u003e745061157026\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Washer, Vent Screw (12-49221)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure the engine is off and the drive unit is cool to the touch.\u003c\/li\u003e\n  \u003cli\u003ePosition a drain pan under the gearcase vent screw.\u003c\/li\u003e\n  \u003cli\u003eUsing a large flathead screwdriver, carefully loosen and remove the vent screw.\u003c\/li\u003e\n  \u003cli\u003eRemove and discard the old washer from the screw.\u003c\/li\u003e\n  \u003cli\u003eClean any debris from the screw threads and the sealing surface on the gearcase.\u003c\/li\u003e\n  \u003cli\u003ePlace the new washer onto the vent screw.\u003c\/li\u003e\n  \u003cli\u003eReinstall the screw and tighten it snugly. Do not overtighten, as this can damage the washer or gearcase.\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 this washer fits my specific engine?\u003c\/summary\u003e\u003cp\u003eWhile this washer is compatible with a broad range of Mercury and Mercruiser models from 1967 to present, the best way to ensure fitment is to check your engine's service manual or existing part for the number 12-49221. If your old part matches this number, our washer is a direct replacement.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing vent screw washer?\u003c\/summary\u003e\u003cp\u003eA primary sign of a bad washer is a visible oil or lubricant leak around the vent screw. Another critical indicator is milky or creamy-looking gear lubricant when you drain it, which signifies water has entered the gearcase through a failed seal.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should I replace this washer?\u003c\/summary\u003e\u003cp\u003eIt is highly recommended to use a new washer every time you remove the vent screw. This is most commonly done during a seasonal gear lubricant change. Reusing an old, compressed washer dramatically increases the risk of leaks.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I reuse the old washer in an emergency?\u003c\/summary\u003e\u003cp\u003eReusing old washers is not recommended as they compress and harden, losing their ability to create a reliable seal. While it might work temporarily, it should be replaced with a new one as soon as possible to prevent water intrusion and lubricant loss.\u003c\/p\u003e\u003c\/details\u003e\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\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\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 vs 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\u003e\n\u003cb\u003ePro-Grade Standards\u003c\/b\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eFast Global Fulfillment\u003c\/b\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eManufacturer-Direct Value\u003c\/b\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50590211408187,"sku":"12-49221","price":6.85,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/12-49221_2f59e544-f6cf-4557-848f-eabbec7a675a.jpg?v=1758080234"},{"product_id":"fuel-pump-base-gasket-fits-mercury-marine-40-250-hp-outboards-replaces-27-987691-27-98769","title":"Fuel Pump Base Gasket – Fits Mercury Marine 40-250 HP Outboards (Replaces 27-987691, 27-98769)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\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 high-quality aftermarket \u003cstrong\u003eFuel Pump Base Gasket – Fits Mercury Marine 40-250 HP Outboards (Replaces 27-987691, 27-98769)\u003c\/strong\u003e provides a reliable seal between the fuel pump and engine block. It is designed for a wide range of Mercury Marine 2-stroke and 4-stroke outboard engines, from 40 HP to 250 HP, ensuring a precise fit for preventing fuel leaks.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct replacement for Mercury Marine part numbers 27-98769, 27-987691, and 8M0204705, as well as aftermarket equivalents from Sierra Marine (18-0970-9), Mallory (9-60054), and GLM (32960).\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEnsures a secure, leak-free seal between the fuel pump and engine.\u003c\/li\u003e\n  \u003cli\u003eDirect replacement design for straightforward installation.\u003c\/li\u003e\n  \u003cli\u003eCovered by a limited lifetime warranty from Sierra Marine.\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\u003eSuperseded By\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e27-98769\u003c\/td\u003e\n        \u003ctd\u003e8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003e8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e8M0204705\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra Marine\u003c\/td\u003e\n        \u003ctd\u003e18-0970-9\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMallory\u003c\/td\u003e\n        \u003ctd\u003e9-60054\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e32960\u003c\/td\u003e\n        \u003ctd\u003e\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\u003cp\u003eThis gasket fits a wide variety of Mercury Marine outboards. Please check your specific model and OEM part number against this table.\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\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke \/ Cylinder\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\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\u003eOutboard 30-40 Jet\u003c\/td\u003e\n        \u003ctd\u003e30-40\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOutboard 30-40\u003c\/td\u003e\n        \u003ctd\u003e30-40\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOutboard 45-65 Jet\u003c\/td\u003e\n        \u003ctd\u003e45-65\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOutboard 45-60\u003c\/td\u003e\n        \u003ctd\u003e45-60\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOutboard 70-90\u003c\/td\u003e\n        \u003ctd\u003e70-90\u003c\/td\u003e\n        \u003ctd\u003e3 Cylinder\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOutboard 75-125\u003c\/td\u003e\n        \u003ctd\u003e75-125\u003c\/td\u003e\n        \u003ctd\u003e3-4 Cylinder\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOutboard 100-115\u003c\/td\u003e\n        \u003ctd\u003e100-115\u003c\/td\u003e\n        \u003ctd\u003e4-6 Cylinder\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOutboard 150-250\u003c\/td\u003e\n        \u003ctd\u003e150-250\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eDFI 2.5L \u0026amp; 3.0L Models\u003c\/td\u003e\n        \u003ctd\u003e90-250\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSport Jet 175XR2\u003c\/td\u003e\n        \u003ctd\u003e175\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSport Jet 210\/240\u003c\/td\u003e\n        \u003ctd\u003e210-240\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e27-987691\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0204705\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\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eFuel Pump Base Gasket\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eGasket material (unspecified)\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e1.13\" L x 5.13\" W x 4.0\" H\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003eSierra Marine: Limited lifetime warranty\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eUsed to seal between fuel pump and engine block\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2 x\u003c\/span\u003e Gasket Base (Replaces 27-987691\/8M0204705)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and relieve any pressure from the fuel system.\u003c\/li\u003e\n  \u003cli\u003eCarefully disconnect the fuel lines and remove the bolts securing the fuel pump.\u003c\/li\u003e\n  \u003cli\u003eRemove the old fuel pump and gasket. Thoroughly clean the mounting surfaces on the engine block and pump, removing all old gasket material and residue.\u003c\/li\u003e\n  \u003cli\u003ePosition the new gasket on the engine block, aligning it with the mounting holes.\u003c\/li\u003e\n  \u003cli\u003eInstall the fuel pump over the new gasket and tighten the bolts to the manufacturer's specified torque.\u003c\/li\u003e\n  \u003cli\u003eReconnect the fuel lines securely.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery, prime the fuel system, and check for any leaks around the gasket and fuel line connections before starting the engine.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this gasket will fit my specific engine?\u003c\/summary\u003e\n  \u003cp\u003eThe best way to ensure compatibility is to verify your engine's model and year against the \"Engine \u0026amp; Model Compatibility\" table. Cross-reference the OEM part number (27-98769 or 27-987691) with your engine's service manual or existing part.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a failing fuel pump gasket?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms include visible fuel leakage around the fuel pump base, a strong smell of gasoline, poor engine performance, hesitation during acceleration, or difficulty starting the engine due to a loss of fuel pressure.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a single gasket or a multipack?\u003c\/summary\u003e\n  \u003cp\u003eThis package includes a set of two gaskets, providing a spare or allowing for replacement on twin-engine setups.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDo I need to use a sealant with this gasket?\u003c\/summary\u003e\n  \u003cp\u003eGenerally, these gaskets are designed to be installed dry. However, always consult your engine's service manual for specific recommendations. In some cases, a light, non-hardening sealant may be advised.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhen should this gasket be replaced?\u003c\/summary\u003e\n  \u003cp\u003eThe gasket should be replaced any time the fuel pump is removed for service or replacement. It should also be replaced immediately if there are any signs of leakage or damage.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the gasket made of?\u003c\/summary\u003e\n  \u003cp\u003eWhile the exact composition is proprietary, it is made from a high-quality, durable gasket material specifically designed to withstand gasoline and engine bay conditions, ensuring a long-lasting seal.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \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\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\n  \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\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs 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\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50590222319931,"sku":"27-987691","price":8.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/27-987691_ca38a076-c996-4fbf-8f4e-718d9bc02059.jpg?v=1758080436"},{"product_id":"thermostat-kit-fits-mercury-marine-mercruiser-engines-replaces-338884","title":"Thermostat Kit – Fits Mercury Marine MerCruiser Engines (Replaces 338884)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\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 \u003cstrong\u003eThermostat Kit – Fits Mercury Marine MerCruiser Engines (Replaces 338884)\u003c\/strong\u003e is engineered to regulate engine temperature for optimal performance in a wide range of Mercury Marine and MerCruiser gasoline stern drive and inboard engines from 1974 to 2021, including 3.0L to 8.2L models.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct replacement for Mercury 338884, Sierra 18-3562, GLM 13371, Mallory 9-13009, and Quicksilver 338884, ensuring a precise fit and reliable function.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstalls directly into the engine's cooling system.\u003c\/li\u003e\n  \u003cli\u003eOpens at a consistent 142°F (61.1°C) to maintain proper operating temperature.\u003c\/li\u003e\n  \u003cli\u003eIncludes the necessary thermostat, gasket, and mounting bolts for a complete installation.\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      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e338884\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e46-338884\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eQuicksilver\u003c\/td\u003e\n        \u003ctd\u003e338884\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-3562\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e13371\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMallory\u003c\/td\u003e\n        \u003ctd\u003e9-13009\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\u003cp\u003eFor MerCruiser models, this thermostat fits a wide variety of inline, V6, and V8 gasoline engines. For Mercury outboards, it is specific to V6 and V8 models from 1994 onwards.\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\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\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\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e3.0L (181 CID)\u003c\/td\u003e\n        \u003ctd\u003e130–140\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1990–2015\u003c\/td\u003e\n        \u003ctd\u003e338884\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e4.3L (262 CID)\u003c\/td\u003e\n        \u003ctd\u003e180–220\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–2021\u003c\/td\u003e\n        \u003ctd\u003e338884\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.0L (305 CID)\u003c\/td\u003e\n        \u003ctd\u003e220–260\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1983–2021\u003c\/td\u003e\n        \u003ctd\u003e338884\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.7L (350 CID)\u003c\/td\u003e\n        \u003ctd\u003e220–350\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1974–2021\u003c\/td\u003e\n        \u003ctd\u003e338884\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e6.2L (377 CID)\u003c\/td\u003e\n        \u003ctd\u003e300–350\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2015–2021\u003c\/td\u003e\n        \u003ctd\u003e338884\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e7.4L (454 CID)\u003c\/td\u003e\n        \u003ctd\u003e310–385\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1991–2001\u003c\/td\u003e\n        \u003ctd\u003e338884\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e8.2L (502 CID)\u003c\/td\u003e\n        \u003ctd\u003e380–430\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1991–2018\u003c\/td\u003e\n        \u003ctd\u003e338884\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e200–350 HP Outboards\u003c\/td\u003e\n        \u003ctd\u003e200–350\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1994–2021\u003c\/td\u003e\n        \u003ctd\u003e338884\u003c\/td\u003e\n        \u003ctd\u003eV6 and V8 models only\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\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eThermostat Kit\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eEngine Cooling System\u003c\/dd\u003e\n  \u003cdt\u003eOperating Temperature\u003c\/dt\u003e\n\u003cdd\u003e142°F (61.1°C) Opening Temperature\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM Replacement\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eStainless Steel \/ Brass\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eMetallic\u003c\/dd\u003e\n  \u003cdt\u003eProduct Dimensions\u003c\/dt\u003e\n\u003cdd\u003e6.0 x 7.13 x 1.25 inches\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.23 kg (0.5 lb)\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eIncludes Gasket and Mounting Hardware\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1-Year Limited Warranty\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Thermostat (338884)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Gasket (27-835844)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2 x\u003c\/span\u003e Mounting Bolts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure the engine is completely cool. Disconnect the boat's battery for safety.\u003c\/li\u003e\n  \u003cli\u003ePlace a drain pan beneath the engine's heat exchanger or thermostat housing and drain the coolant.\u003c\/li\u003e\n  \u003cli\u003eLocate the thermostat housing. It is typically on top of the engine where the main coolant hose connects.\u003c\/li\u003e\n  \u003cli\u003eRemove the bolts securing the housing cover. You may need to gently tap the cover to break the seal.\u003c\/li\u003e\n  \u003cli\u003eNote the orientation of the old thermostat before removing it and its gasket.\u003c\/li\u003e\n  \u003cli\u003eThoroughly clean both mating surfaces of the housing and its cover, removing all old gasket material.\u003c\/li\u003e\n  \u003cli\u003eInstall the new thermostat in the correct orientation, followed by the new gasket.\u003c\/li\u003e\n  \u003cli\u003eReinstall the housing cover and tighten the bolts to the manufacturer-specified torque. Do not overtighten.\u003c\/li\u003e\n  \u003cli\u003eReconnect all hoses, refill the cooling system with the appropriate coolant, and reconnect the battery.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and let it warm up, carefully checking for any leaks around the thermostat housing.\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 thermostat has failed?\u003c\/summary\u003e\u003cp\u003eCommon signs of a failed thermostat include the engine overheating (stuck closed) or taking too long to reach operating temperature (stuck open). You may see corresponding alarms on your gauges or notice poor performance.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this thermostat fit my specific engine model?\u003c\/summary\u003e\u003cp\u003eThis kit is designed for a broad range of MerCruiser and Mercury engines as listed in the compatibility table. Always verify your engine's model and year range against the table. If you are unsure, check your engine's service manual or part number.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs the gasket included in this kit?\u003c\/summary\u003e\u003cp\u003eYes, this is a complete kit that includes the thermostat, a new gasket, and two mounting bolts, providing everything needed for a standard replacement.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the correct operating temperature for this thermostat?\u003c\/summary\u003e\u003cp\u003eThis thermostat is designed to begin opening at 142°F (61.1°C), which is the standard temperature for the specified raw water-cooled engine models.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should a marine thermostat be replaced?\u003c\/summary\u003e\u003cp\u003eWhile there's no fixed interval, it is good practice to inspect the thermostat every few years or 200-300 hours. It is often replaced as preventative maintenance, especially if the boat is used in saltwater, which can accelerate corrosion.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat's the difference between an OEM part and an aftermarket one?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). It has been engineered and manufactured to meet or exceed original equipment specifications in terms of fit, form, and function. Our parts are produced in an ISO 9002 certified facility and undergo batch inspections to ensure quality and consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow fast is shipping and what does it cost?\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free on all orders. Expedited shipping options and associated costs, if available for your location, will be displayed at checkout.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal marine use. If you encounter an issue, please contact our support team with your order number. Returns are accepted within our standard return window for unused items in their original packaging. Please see our policy page or contact us for detailed 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 vs 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\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50592380387643,"sku":"338884","price":99.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/338884_9c288eea-c49e-4d46-8d3f-769d6f4308d7.jpg?v=1758212895"},{"product_id":"valve-cover-gasket-fits-volvo-penta-mercruiser-5-0l-5-7l-v8-engines-replaces-3852687-27-17467","title":"Valve Cover Gasket – Fits Volvo Penta \u0026 MerCruiser 5.0L\/5.7L V8 Engines (Replaces 3852687, 27-17467)","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\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\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis aftermarket \u003cstrong\u003eValve Cover Gasket – Fits Volvo Penta \u0026amp; MerCruiser 5.0L\/5.7L V8 Engines (Replaces 3852687, 27-17467)\u003c\/strong\u003e is designed for a precise fit on a wide range of V8 marine engines with center bolt valve covers. It is compatible with Volvo Penta 5.0L\/5.7L models (1986–2018), MerCruiser 5.0L\/5.7L\/6.2L models (1987–2018), and OMC 5.0L\/5.7L models (1987–2006).\u003c\/p\u003e\n  \u003cp\u003eThis gasket serves as a direct interchange for Volvo Penta 3852687\/856072, MerCruiser 27-17467\/17467\/8M0150306, OMC 3852687\/913270\/0509120, Crusader 7231330, Sierra 18-0664, and FelPro 17931.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eFits V8 engines with center bolt valve cover designs (1987 and newer).\u003c\/li\u003e\n    \u003cli\u003eConstructed from high-quality PermaDry molded rubber for a durable, leak-proof seal.\u003c\/li\u003e\n    \u003cli\u003ePackage includes two gaskets for a complete engine service.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\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        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n          \u003ctd\u003e3852687 \/ 856072\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e27-17467 \/ 17467 \/ 8M0150306\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eOMC\u003c\/td\u003e\n          \u003ctd\u003e3852687 \/ 913270 \/ 0509120\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eCrusader\u003c\/td\u003e\n          \u003ctd\u003e7231330\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-0664\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eFelPro\u003c\/td\u003e\n          \u003ctd\u003e17931\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n  \u003cp\u003e\u003cb\u003eVolvo Penta Fitment:\u003c\/b\u003e Covers a wide range of 5.0L and 5.7L V8 models from 1986 to 2018 with center bolt valve covers.\u003c\/p\u003e\n  \u003cp\u003e\u003cb\u003eMerCruiser Fitment:\u003c\/b\u003e Fits various 5.0L, 5.7L, and 6.2L V8 models from 1987 to 2018, including Magnum and Scorpion series with center bolt covers.\u003c\/p\u003e\n  \u003cp\u003e\u003cb\u003eOMC Fitment:\u003c\/b\u003e Compatible with 5.0L and 5.7L V8 models produced between 1987 and 2006.\u003c\/p\u003e\n  \u003cp\u003e\u003cb\u003eCrusader Fitment:\u003c\/b\u003e Applies to 5.0L and 5.7L GM-based V8 engines from 1987 onwards that use a center bolt valve cover design.\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\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eYears\u003c\/th\u003e\n          \u003cth\u003eOEM Part No.\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\u003e5.0-BY\u003c\/td\u003e\n\u003ctd\u003e190-220\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.0-EF\u003c\/td\u003e\n\u003ctd\u003e190-220\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.0-WT\u003c\/td\u003e\n\u003ctd\u003e190-220\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.0Gi\u003c\/td\u003e\n\u003ctd\u003e190-225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.0GL\u003c\/td\u003e\n\u003ctd\u003e190-220\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.0GS\u003c\/td\u003e\n\u003ctd\u003e190-220\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.0GX\u003c\/td\u003e\n\u003ctd\u003e190-220\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.0OSi\u003c\/td\u003e\n\u003ctd\u003e190-220\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.7-BY\u003c\/td\u003e\n\u003ctd\u003e250-270\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.7Gi\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.7GL\u003c\/td\u003e\n\u003ctd\u003e215\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.7GS\u003c\/td\u003e\n\u003ctd\u003e250-270\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.7GXi\u003c\/td\u003e\n\u003ctd\u003e320\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e5.7OSi\u003c\/td\u003e\n\u003ctd\u003e250-270\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eAQ211A\u003c\/td\u003e\n\u003ctd\u003e210\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eAQ231A, AQ231B\u003c\/td\u003e\n\u003ctd\u003e229-231\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eAQ271C, AQ271D\u003c\/td\u003e\n\u003ctd\u003e270-275\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eBB231A\u003c\/td\u003e\n\u003ctd\u003e229-231\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eBB261A\u003c\/td\u003e\n\u003ctd\u003e260\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e500A, 500B\u003c\/td\u003e\n\u003ctd\u003e187\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e501A, 501B\u003c\/td\u003e\n\u003ctd\u003e187\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e570A\u003c\/td\u003e\n\u003ctd\u003e245\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e570DP\u003c\/td\u003e\n\u003ctd\u003e245\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e571\u003c\/td\u003e\n\u003ctd\u003e273\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003e572A\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eV8-225-C-A, V8-225-C-B\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eV8-225-CE-A, V8-225-CE-B\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eV8-270-A, V8-270-C-A, V8-270-C-B\u003c\/td\u003e\n\u003ctd\u003e270\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eV8-270-CE-A, V8-270-CE-B, V8-270-E-A\u003c\/td\u003e\n\u003ctd\u003e270\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eV8-300-A, V8-300-C-A, V8-300-C-B\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eV8-300-CE-A, V8-300-CE-B, V8-300-E-A\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eV8-320-A, V8-320-A-A\u003c\/td\u003e\n\u003ctd\u003e320\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eV8-320-C-A, V8-320-C-B\u003c\/td\u003e\n\u003ctd\u003e320\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eV8-320-CE-A, V8-320-CE-B, V8-320-E-A\u003c\/td\u003e\n\u003ctd\u003e320\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1986–2018\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e5.0L\u003c\/td\u003e\n\u003ctd\u003e180-230\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e5.0LX\u003c\/td\u003e\n\u003ctd\u003e205-230\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e5.7L\u003c\/td\u003e\n\u003ctd\u003e230-260\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e5.7L Bravo\u003c\/td\u003e\n\u003ctd\u003e240-270\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e5.7L Blue Water Inboard\u003c\/td\u003e\n\u003ctd\u003e250-260\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e5.7L Comp Ski\u003c\/td\u003e\n\u003ctd\u003e250-260\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e300 MR\/TR\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e350 Magnum\u003c\/td\u003e\n\u003ctd\u003e250-265\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e350 Magnum Tournament Ski\u003c\/td\u003e\n\u003ctd\u003e240-270\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eBlack Scorpion\u003c\/td\u003e\n\u003ctd\u003e315\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003ctd\u003e315-320\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e27-17467\u003c\/td\u003e\n\u003ctd\u003eFor center bolt valve covers\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e5.0L\u003c\/td\u003e\n\u003ctd\u003e175-225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2006\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e5.0L High Output\u003c\/td\u003e\n\u003ctd\u003e190-225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2006\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e5.0L 305 V8\u003c\/td\u003e\n\u003ctd\u003e175-225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2006\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e5.0L 307 OHV V8\u003c\/td\u003e\n\u003ctd\u003e175-225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2006\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e250-260\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2006\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e250 King Cobra\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2006\u003c\/td\u003e\n\u003ctd\u003e3852687\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCrusader\u003c\/td\u003e\n\u003ctd\u003e5.0L\/5.7L GM V8\u003c\/td\u003e\n\u003ctd\u003e215-350\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1987–2018\u003c\/td\u003e\n\u003ctd\u003e7231330\u003c\/td\u003e\n\u003ctd\u003eCenter bolt valve covers\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eValve Cover Gasket\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eCenter Bolt Design Valve Covers\u003c\/dd\u003e\n    \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n    \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMolded Rubber (PermaDry)\u003c\/dd\u003e\n    \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e66.0cm L x 28.0cm W x 1.0cm H\u003c\/dd\u003e\n    \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eFor center bolt valve cover design (1987 and newer V8 engines)\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n  \n\u003csection\u003e\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2 x\u003c\/span\u003e Valve Cover Gasket (3852687)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the battery before beginning work.\u003c\/li\u003e\n    \u003cli\u003eRemove any components obstructing access to the valve covers, such as brackets, hoses, or wiring.\u003c\/li\u003e\n    \u003cli\u003eUnscrew the center bolts holding the valve cover in place. Note their positions if they are different lengths.\u003c\/li\u003e\n    \u003cli\u003eGently tap the valve cover with a rubber mallet to break the seal, then lift it off. Avoid prying, which can damage the surfaces.\u003c\/li\u003e\n    \u003cli\u003eRemove the old gasket and any old sealant or residue from both the cylinder head and the valve cover. A plastic scraper and degreaser are recommended.\u003c\/li\u003e\n    \u003cli\u003eEnsure the mating surfaces are completely clean, dry, and free of oil before proceeding.\u003c\/li\u003e\n    \u003cli\u003ePress the new gasket firmly into the channel on the valve cover. Ensure it is seated evenly all the way around.\u003c\/li\u003e\n    \u003cli\u003eCarefully place the valve cover back onto the cylinder head, aligning the bolt holes.\u003c\/li\u003e\n    \u003cli\u003eHand-tighten the bolts first, then torque them to the manufacturer's specification in a crisscross pattern to ensure even pressure. Do not overtighten.\u003c\/li\u003e\n    \u003cli\u003eReconnect any components that were removed and start the engine to check for leaks.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know if my engine uses center bolt valve covers?\u003c\/summary\u003e\n    \u003cp\u003eCenter bolt valve covers, common on 1987 and newer GM V8 engines, have four bolts located in the center of the cover. Older engines typically have perimeter bolts along the outer edge. Visually inspect your current valve covers to confirm the bolt pattern before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the common signs of a failing valve cover gasket?\u003c\/summary\u003e\n    \u003cp\u003eSymptoms include visible oil leaks around the valve cover, a burning oil smell from drips onto hot engine parts, low engine oil levels, and a dirty or oil-soaked valve cover area. If you notice any of these, it's time to inspect the gasket.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan these gaskets be reused?\u003c\/summary\u003e\n    \u003cp\u003eNo. These are single-use gaskets. Reusing a valve cover gasket, especially a molded rubber one, will almost certainly result in leaks as it has already been compressed and heat-cycled.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs sealant required for installation?\u003c\/summary\u003e\n    \u003cp\u003eGenerally, these PermaDry molded rubber gaskets are designed to be installed dry without any additional sealant. However, it is best practice to apply a small dab of RTV sealant at any sharp corners or joints, such as where the intake manifold meets the cylinder head.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n    \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\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\n    \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\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify images\/specifications vs 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\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003ePro-Grade Standards\u003c\/b\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eFast Global Fulfillment\u003c\/b\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eManufacturer-Direct Value\u003c\/b\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50593340457275,"sku":"17931","price":20.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17931_158323b8-9796-4c49-975b-96ae92016f8b.jpg?v=1758250870"},{"product_id":"6-mercruiser-spacer-kit-fits-v6-v8-marine-engines-replaces-93322a12-20985","title":"6\" Mercruiser Spacer Kit – Fits V6 \u0026 V8 Marine Engines (Replaces 93322A12, 20985)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e6\" Mercruiser Spacer Kit\u003c\/strong\u003e raises the exhaust elbow by 6 inches on Mercruiser V6 and V8 marine engines. It is designed specifically for \"wet joint\" exhaust systems, typically used on models from 1986–2001 (4.3L, 5.0L, 5.7L) and from 1986 to the present on big block engines (7.4L, 8.2L). It is not compatible with newer \"dry joint\" systems.\u003c\/p\u003e\n\u003cp\u003eThis kit serves as a direct replacement for Mercury\/Mercruiser parts 93322A12 and 93322A3; GLM parts 50600 and 50610; BARR part MC-20-93322A3; and Mercruiser part HOT20985.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls between the exhaust manifold and the riser\/elbow.\u003c\/li\u003e\n\u003cli\u003eEngineered for wet joint systems where water passes between the manifold and elbow.\u003c\/li\u003e\n\u003cli\u003eConstructed from heavy-duty cast iron for durability in marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\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\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      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e93322A12\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e93322A3\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003eHOT20985\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e50600\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGLM\u003c\/td\u003e\n        \u003ctd\u003e50610\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eBARR\u003c\/td\u003e\n        \u003ctd\u003eMC-20-93322A3\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\u003cp\u003eThis part is verified to work with BARR manifold part numbers MC-1-99798, MC-1-87114, and MC-1-89011 on compatible engines.\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\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\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\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e4.3L\u003c\/td\u003e\n        \u003ctd\u003e175–205\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–2001\u003c\/td\u003e\n        \u003ctd\u003e93322A12\u003c\/td\u003e\n        \u003ctd\u003eFor wet joint systems with serial #0M614999 \u0026amp; below\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e5.0L\u003c\/td\u003e\n        \u003ctd\u003e200–320\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–2001\u003c\/td\u003e\n        \u003ctd\u003e93322A12\u003c\/td\u003e\n        \u003ctd\u003eFor wet joint systems with serial #0M599999 \u0026amp; below\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e5.7L\u003c\/td\u003e\n        \u003ctd\u003e200–320\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–2001\u003c\/td\u003e\n        \u003ctd\u003e93322A12\u003c\/td\u003e\n        \u003ctd\u003eFor wet joint systems with serial #0M599999 \u0026amp; below\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e7.4L (Big Block)\u003c\/td\u003e\n        \u003ctd\u003e330–370\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–Present\u003c\/td\u003e\n        \u003ctd\u003e93322A12\u003c\/td\u003e\n        \u003ctd\u003eFor wet joint systems\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e8.2L (Big Block)\u003c\/td\u003e\n        \u003ctd\u003e380+\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1986–Present\u003c\/td\u003e\n        \u003ctd\u003e93322A12\u003c\/td\u003e\n        \u003ctd\u003eFor wet joint systems\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\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eMarine Exhaust Spacer Kit\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eBetween exhaust manifold and elbow\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003e\"Wet Joint\" (passes water between manifold and elbow)\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eCast Iron\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eRaw Metal\/Unpainted\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e6\" (152.4 mm) height\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e30 lbs (13.6 kg)\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eBolted connection\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e3 years (manufacturer's warranty)\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eFor \"wet joint\" exhaust systems only\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e2 x\u003c\/span\u003e Spacer Block (Cast Iron)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure the engine is completely cool and disconnect the battery for safety.\u003c\/li\u003e\n  \u003cli\u003eDrain water from the exhaust manifold according to your engine service manual.\u003c\/li\u003e\n  \u003cli\u003eCarefully unbolt and remove the exhaust elbow from the top of the manifold.\u003c\/li\u003e\n  \u003cli\u003eThoroughly clean both the manifold and elbow mating surfaces, removing all old gasket material.\u003c\/li\u003e\n  \u003cli\u003ePlace a new gasket on the manifold, position the 6\" spacer on top, place another new gasket on the spacer, and then reinstall the elbow.\u003c\/li\u003e\n  \u003cli\u003eInsert and hand-tighten the new, longer mounting bolts.\u003c\/li\u003e\n  \u003cli\u003eTorque the bolts to the manufacturer's recommended specification in a crisscross pattern.\u003c\/li\u003e\n  \u003cli\u003eReconnect any hoses, refill the cooling system, and reconnect the battery.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and carefully check for any water or exhaust leaks around the new spacers.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this kit fit my \"dry joint\" Mercruiser engine?\u003c\/summary\u003e\n  \u003cp\u003eNo. This spacer kit is specifically for \"wet joint\" exhaust systems only. It will not fit \"dry joint\" manifolds, which typically have serial numbers beginning with OM, such as OM0XXXXXXX.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow can I tell if my system is \"wet joint\" or \"dry joint\"?\u003c\/summary\u003e\n  \u003cp\u003eWet joint systems, common from 1986 to the early 2000s, have a visible gasket and pass water between the manifold and elbow through openings in the mating surfaces. Dry joint systems (early 2000s to present) use a U-shaped connector pipe for water and have blocked-off mating surfaces with a different bolt pattern. Always check your serial number and visual configuration.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this kit include gaskets and mounting bolts?\u003c\/summary\u003e\n  \u003cp\u003eThis kit includes the two cast iron spacer blocks. Please refer to the \"What’s in the Box\" section for a complete list of included items. Gaskets and bolts are typically sold separately to ensure you get the correct hardware for your specific manifold and elbow combination.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs my existing spacers or manifold need replacement?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs of failure include water leaking externally from the gasket joints, water in the engine oil (indicating an internal leak), overheating, or visible cracks and corrosion on the cast iron components. Regular inspection is recommended, especially in saltwater environments.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \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\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\n  \u003cp\u003eCovered by a 3-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\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs 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\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50597936038203,"sku":"HOT20985","price":364.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/HOT20985_23f5fb8a-8fcb-4f13-b780-0032650102c2.jpg?v=1758508281"},{"product_id":"water-pump-repair-kit-fits-mercruiser-v6-v8-engines-replaces-8m0142980-47-8m0142980","title":"Water Pump Repair Kit – Fits MerCruiser V6 \u0026 V8 Engines (Replaces 8M0142980, 47-8M0142980)","description":"\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\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\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\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\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003eWater Pump Repair Kit – Fits MerCruiser V6 \u0026amp; V8 Engines\u003c\/strong\u003e is designed for the new generation of Mercury MerCruiser V6 (3.4L) and V8 (4.6L) 4-stroke engines (175-300 HP) from 2020 and newer models.\u003c\/p\u003e\n  \u003cp\u003eIt serves as a direct aftermarket replacement for Mercury part numbers 8M0142980 and 47-8M0142980.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eEngine-mounted, belt-driven installation.\u003c\/li\u003e\n    \u003cli\u003eFeatures the updated design for modern V6 (3.4L) \u0026amp; V8 (4.6L) engines.\u003c\/li\u003e\n    \u003cli\u003eIncludes all necessary gaskets, seals, and impeller for a complete service.\u003c\/li\u003e\n  \u003c\/ul\u003e\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        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e8M0142980\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e47-8M0142980\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n  \u003cp\u003eFor MerCruiser engines, please verify your specific model and production year against this list.\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\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eYears\u003c\/th\u003e\n          \u003cth\u003eOEM Part No.\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\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003eV6 (3.4L)\u003c\/td\u003e\n          \u003ctd\u003e175-300\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2020+\u003c\/td\u003e\n          \u003ctd\u003e8M0142980\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003eV8 (4.6L)\u003c\/td\u003e\n          \u003ctd\u003e175-300\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2020+\u003c\/td\u003e\n          \u003ctd\u003e8M0142980\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eWater Pump Repair Kit\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eEngine-mounted, belt-driven\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n    \u003cdd\u003e3.2 oz (91 g)\u003c\/dd\u003e\n    \u003cdt\u003eProduct Dimensions\u003c\/dt\u003e\n    \u003cdd\u003e18.0\" L x 10.5\" W x 12.0\" H\u003c\/dd\u003e\n    \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n    \u003cdd\u003e\"NEW\" design for 175-300 HP V6 (3.4L) \u0026amp; V8 (4.6L) engines\u003c\/dd\u003e\n  \u003c\/dl\u003e\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Water pump gasket\u003c\/li\u003e\n    \u003cli\u003e1 x Face plate\u003c\/li\u003e\n    \u003cli\u003e1 x Face plate gasket\u003c\/li\u003e\n    \u003cli\u003e1 x Key\u003c\/li\u003e\n    \u003cli\u003e1 x Impeller\u003c\/li\u003e\n    \u003cli\u003e1 x Face seal\u003c\/li\u003e\n    \u003cli\u003e1 x Drain plug seal\u003c\/li\u003e\n    \u003cli\u003e1 x Water pump gasket\u003c\/li\u003e\n    \u003cli\u003e1 x O-ring\u003c\/li\u003e\n    \u003cli\u003e1 x Actuator seal\u003c\/li\u003e\n    \u003cli\u003e1 x Face seal tool\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the battery and ensure the engine is completely cool before starting.\u003c\/li\u003e\n    \u003cli\u003eRelieve any pressure in the cooling system and have a container ready to catch draining coolant.\u003c\/li\u003e\n    \u003cli\u003eLocate the seawater pump assembly on the engine.\u003c\/li\u003e\n    \u003cli\u003eLoosen the serpentine belt tensioner and remove the belt from the pump pulley.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the inlet and outlet hoses from the pump.\u003c\/li\u003e\n    \u003cli\u003eCarefully unbolt and remove the old pump assembly from its mounting bracket.\u003c\/li\u003e\n    \u003cli\u003eThoroughly clean the mounting surface on the engine, ensuring no old gasket material remains.\u003c\/li\u003e\n    \u003cli\u003eAssemble the new kit components, including the impeller, gaskets, and seals, into the housing.\u003c\/li\u003e\n    \u003cli\u003eMount the new water pump assembly and torque the mounting bolts to the manufacturer's recommended specification.\u003c\/li\u003e\n    \u003cli\u003eReconnect the water hoses and reinstall the serpentine belt, verifying correct tension.\u003c\/li\u003e\n    \u003cli\u003eRefill the cooling system with the specified coolant type.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery, start the engine, and meticulously check for any leaks and proper water flow.\u003c\/li\u003e\n  \u003c\/ol\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhich MerCruiser engines is this kit for?\u003c\/summary\u003e\n    \u003cp\u003eThis kit is specifically designed for the \"NEW\" MerCruiser V6 (3.4L) and V8 (4.6L) 4-stroke engines (175-300 HP) manufactured from 2020 onward.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a complete kit for the repair?\u003c\/summary\u003e\n    \u003cp\u003eYes, it includes the impeller, face plate, gaskets, seals, and other necessary components for a standard water pump service. Refer to the \"What’s in the Box\" section for a full list of contents.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are signs my water pump is failing?\u003c\/summary\u003e\n    \u003cp\u003eCommon symptoms include engine overheating at idle or low speeds, a steady drip of coolant or water from the pump's weep hole, or a grinding\/whining noise emanating from the pump area.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the water pump impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eFor optimal reliability, most marine mechanics recommend inspecting the impeller annually and replacing it every 2–3 years or 200–300 service hours, depending on operating conditions (especially in saltwater or high-debris environments).\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n    \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\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n    \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\n  \u003c\/details\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify images\/specifications vs 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  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50602582049083,"sku":"47-8M0142980","price":99.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/47-8M0142980_b3ed2a23-2871-4b0b-a945-89ebd95ca059.jpg?v=1758594834"},{"product_id":"upper-gear-housing-seal-kit-fits-mercruiser-r-mr-alpha-one-gen-i-drives-replaces-mercury-26-32511a1-sierra-18-2648","title":"Upper Gear Housing Seal Kit for MerCruiser R, MR \u0026 Alpha One Drives — Replaces Mercury 26-32511A1 and Sierra 18-2648","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 { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003eUpper Gear Housing Seal Kit\u003c\/strong\u003e is designed to reseal the drive-shaft housing on selected MerCruiser stern drives, helping prevent gear-lube leaks and water intrusion around the upper gear housing. Catalog references identify this seal-kit application for MerCruiser R, MR, and Alpha One drives, including earlier #1 drive applications.\u003c\/p\u003e\n  \u003cp\u003eThe kit replaces Mercury Marine OEM part number \u003cstrong\u003e26-32511A1\u003c\/strong\u003e and corresponds to Sierra part number \u003cstrong\u003e18-2648\u003c\/strong\u003e. GLM catalog information identifies the equivalent drive-shaft housing seal kit as GLM 87500 for R, MR, and Alpha One applications.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eReplacement seal kit for the upper drive-shaft housing.\u003c\/li\u003e\n    \u003cli\u003eHelps restore sealing at service points in the upper gear housing.\u003c\/li\u003e\n    \u003cli\u003eDirect-replacement application when the listed model and serial conditions match.\u003c\/li\u003e\n    \u003cli\u003eInspect the original components and verify the drive serial number before ordering.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse the following references to compare the listed replacement part with catalog numbers from other manufacturers.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003e26-32511A1\u003c\/td\u003e\n\u003ctd\u003eOEM reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-2648\u003c\/td\u003e\n\u003ctd\u003eAftermarket replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eDrive-shaft housing seal kit 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\u003eFitment depends on the drive model, production year, and serial-number range. The application information below is consolidated from the available drive-shaft housing seal-kit catalog data. Confirm the serial number on the drive before installation.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eSerial Number Condition\u003c\/th\u003e\n\u003cth\u003eSeal Kit Reference\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\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eIA \/ IB \/ IC \u0026amp; EZ Shift\u003c\/td\u003e\n\u003ctd\u003e1964–1966\u003c\/td\u003e\n\u003ctd\u003e1684188–2065186\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eDrive-shaft housing seal-kit application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e120 \/ 140\u003c\/td\u003e\n\u003ctd\u003e1967–1982\u003c\/td\u003e\n\u003ctd\u003e2062141–6225576\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eDrive-shaft housing seal-kit application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e470 \/ 485\u003c\/td\u003e\n\u003ctd\u003e1976–1982\u003c\/td\u003e\n\u003ctd\u003e4208730–6225575\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eDrive-shaft housing seal-kit application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e160 \/ 165\u003c\/td\u003e\n\u003ctd\u003e1967–1981\u003c\/td\u003e\n\u003ctd\u003e2065190 and up\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eDrive-shaft housing seal-kit application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e888\u003c\/td\u003e\n\u003ctd\u003e1971–1977\u003c\/td\u003e\n\u003ctd\u003e3106717 and up\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eDrive-shaft housing seal-kit application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e225 \/ 233\u003c\/td\u003e\n\u003ctd\u003e1974–1977\u003c\/td\u003e\n\u003ctd\u003e3856268 and up\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eDrive-shaft housing seal-kit application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e898 \/ 228 \/ 250 \/ 260\u003c\/td\u003e\n\u003ctd\u003e1977–1982\u003c\/td\u003e\n\u003ctd\u003e4782330–6225576\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eDrive-shaft housing seal-kit application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eR\u003c\/td\u003e\n\u003ctd\u003e1983\u003c\/td\u003e\n\u003ctd\u003e6225577 and up\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eDrive-shaft housing seal-kit application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eMR \/ Alpha One\u003c\/td\u003e\n\u003ctd\u003e1984–1990\u003c\/td\u003e\n\u003ctd\u003e6225577 and up\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eIncludes listed MR and Alpha One applications\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eMR \/ Alpha One (CR)\u003c\/td\u003e\n\u003ctd\u003e1984–1990\u003c\/td\u003e\n\u003ctd\u003e6225577 and up\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eCatalog application; verify the drive configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eAlpha One SS\u003c\/td\u003e\n\u003ctd\u003e1986–1989\u003c\/td\u003e\n\u003ctd\u003e0A54004 and up\u003c\/td\u003e\n\u003ctd\u003e87500\u003c\/td\u003e\n\u003ctd\u003eDrive-shaft housing seal-kit application\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Alpha One Gen II applications use a different seal-kit reference and are not included in this listing. Do not use this kit for Alpha One Gen II drives unless the original part and serial-number documentation specifically confirms compatibility.\u003c\/p\u003e\n\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eUpper drive-shaft housing seal kit\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eMerCruiser R, MR, and Alpha One drive-shaft housings within the listed conditions\u003c\/dd\u003e\n    \u003cdt\u003eReplacement OEM Reference\u003c\/dt\u003e\n\u003cdd\u003eMercury Marine 26-32511A1\u003c\/dd\u003e\n    \u003cdt\u003eAftermarket References\u003c\/dt\u003e\n\u003cdd\u003eSierra 18-2648; GLM 87500\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement installation; access to the upper gear housing is required\u003c\/dd\u003e\n    \u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eSealing components; exact material composition is not specified\u003c\/dd\u003e\n    \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003eRefer to the applicable seller warranty and return policy\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cp\u003eThis listing is supplied as an upper gear housing seal kit. Component styles and markings may vary by production batch. The commonly listed kit contents are:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Grommet, reference 26-38970\u003c\/li\u003e\n    \u003cli\u003e1 x Gasket, reference 27-55810-1\u003c\/li\u003e\n    \u003cli\u003e2 x Gasket, reference 12-19183-3\u003c\/li\u003e\n    \u003cli\u003e1 x O-ring, reference 25-55801\u003c\/li\u003e\n    \u003cli\u003e1 x O-ring, reference 25-32546\u003c\/li\u003e\n    \u003cli\u003e1 x O-ring, reference 25-25439\u003c\/li\u003e\n    \u003cli\u003e1 x O-ring, reference 25-70937\u003c\/li\u003e\n    \u003cli\u003e1 x Oil seal, reference 26-32511\u003c\/li\u003e\n    \u003cli\u003e1 x Oil seal, reference 26-823894\u003c\/li\u003e\n    \u003cli\u003e1 x Oil seal, reference 26-96503-1\u003c\/li\u003e\n    \u003cli\u003e1 x Seal, reference 26-45577-1\u003c\/li\u003e\n    \u003cli\u003e1 x Grommet, reference 26-36557\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eCompare the supplied components with the parts being removed before final assembly. Do not assume that a component reference printed on an individual seal is the kit part number.\u003c\/p\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDrain the gear lubricant from the stern drive completely.\u003c\/li\u003e\n    \u003cli\u003eRemove the upper gear housing assembly according to the applicable service procedure.\u003c\/li\u003e\n    \u003cli\u003eDisassemble the housing as needed to access the seals, gaskets, O-rings, and grommets. Record the orientation and position of each removed component.\u003c\/li\u003e\n    \u003cli\u003eClean all mating surfaces and remove old sealant, debris, and corrosion without damaging the sealing surfaces.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement components in the same locations and orientations as the original parts. Use only lubricant or sealant specified by the applicable service manual.\u003c\/li\u003e\n    \u003cli\u003eReassemble the upper gear housing and tighten fasteners to the manufacturer’s service specifications.\u003c\/li\u003e\n    \u003cli\u003eRefill the drive with the correct marine gear lubricant, then perform a leak check before returning the boat to service.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm that this seal kit fits my MerCruiser drive?\u003c\/summary\u003e\n    \u003cp\u003eMatch the drive model, year, and serial-number condition against the compatibility table. The most reliable identification method is the drive serial number and the part number removed during service. Alpha One Gen II drives use a different seal-kit reference and should not be assumed compatible.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are common signs of a failed upper housing seal?\u003c\/summary\u003e\n    \u003cp\u003ePossible symptoms include water-contaminated or cloudy gear lubricant, visible lubricant around the upper housing, or a measurable drop in lubricant level. A complete inspection is required to identify the failed sealing point.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this kit include the complete upper gear housing?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is a seal kit only. It does not include the gear housing, gears, bearings, drive shaft, or other major drive assemblies.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM Mercury Marine part?\u003c\/summary\u003e\n    \u003cp\u003eNo. This listing is for an aftermarket replacement kit that references Mercury Marine OEM part number 26-32511A1 for identification.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShould the seals be replaced during every upper housing service?\u003c\/summary\u003e\n    \u003cp\u003eSeals, gaskets, and O-rings should be replaced whenever the applicable service procedure requires their removal or whenever they show wear, damage, hardening, or leakage. Follow the manufacturer’s service instructions for inspection and replacement.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the drive model, year, and serial number before ordering.\u003c\/li\u003e\n    \u003cli\u003eDo not rely on model name alone; similar MerCruiser drives may use different seal kits.\u003c\/li\u003e\n    \u003cli\u003eDo not use this listing as confirmation for Alpha One Gen II applications.\u003c\/li\u003e\n    \u003cli\u003eUse the correct service procedures, tools, torque values, lubricant, and sealant for the drive being serviced.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when disassembly of the upper gear housing is required.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eMarine replacement parts selected for practical service and repair applications.\u003c\/li\u003e\n    \u003cli\u003eClear part-number references to help compare aftermarket replacements with original components.\u003c\/li\u003e\n    \u003cli\u003eSupport focused on accurate identification and dependable fitment information.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718265671995,"sku":"KF24SK445","price":22.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/KF24SK445.png?v=1762958523"},{"product_id":"exhaust-elbow-gasket-fits-mercruiser-2-5l-3-0l-v8-replaces-27-997771-sierra-18-2833-9","title":"Exhaust Elbow Gasket – Fits MerCruiser 120, 140, 2.5L, 3.0L \u0026 V8 Models (Replaces 27-997771, Sierra 18-2833-9)","description":"\u003csection\u003e\n\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 { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eExhaust Elbow Gasket\u003c\/strong\u003e is a single replacement gasket designed to seal the exhaust manifold-to-riser or elbow connection on compatible MerCruiser wet-joint exhaust systems. It is listed for select MerCruiser 120, 140, 2.5L, 3.0L and V8 applications. Confirm the engine model, exhaust design and original gasket shape before ordering.\u003c\/p\u003e\n\u003cp\u003eThis gasket replaces MerCruiser part number \u003cstrong\u003e27-997771\u003c\/strong\u003e and is listed as an interchange for \u003cstrong\u003eSierra 18-2833-9\u003c\/strong\u003e. Reference numbers describe potential replacement relationships; always compare the original part and verify the specific engine application.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFor compatible wet-joint exhaust connections.\u003c\/li\u003e\n  \u003cli\u003eSeals the joint between the exhaust manifold and exhaust riser or elbow.\u003c\/li\u003e\n  \u003cli\u003eComposite fiber gasket construction for marine exhaust service.\u003c\/li\u003e\n  \u003cli\u003eSold as one individual exhaust elbow gasket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse these listed replacement references to help identify the correct gasket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Interchange\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e27-997771\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-2833-9\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe available product record identifies this gasket for select MerCruiser 120, 140, 2.5L, 3.0L and V8 applications. Exact fitment can vary by engine year, exhaust-manifold design and serial-number range, so verify the application against the engine service information and the original gasket before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Compatible Engine Models\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eEngine Information\u003c\/th\u003e\n\u003cth\u003eExhaust System\u003c\/th\u003e\n\u003cth\u003eReplacement Reference\u003c\/th\u003e\n\u003cth\u003eFitment Notes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003ctd\u003e2.5L-class application\u003c\/td\u003e\n\u003ctd\u003eWet-joint\u003c\/td\u003e\n\u003ctd\u003e27-997771\u003c\/td\u003e\n\u003ctd\u003eVerify year, serial range and gasket profile.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e140\u003c\/td\u003e\n\u003ctd\u003e3.0L-class application\u003c\/td\u003e\n\u003ctd\u003eWet-joint\u003c\/td\u003e\n\u003ctd\u003e27-997771\u003c\/td\u003e\n\u003ctd\u003eVerify year, serial range and gasket profile.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003e2.5L \/ 3.0L\u003c\/td\u003e\n\u003ctd\u003eSelected I4 applications\u003c\/td\u003e\n\u003ctd\u003eWet-joint\u003c\/td\u003e\n\u003ctd\u003e27-997771\u003c\/td\u003e\n\u003ctd\u003eConfirm the manifold and riser connection before ordering.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eV8\u003c\/td\u003e\n\u003ctd\u003eSelected V8 applications\u003c\/td\u003e\n\u003ctd\u003eWet-joint\u003c\/td\u003e\n\u003ctd\u003e27-997771\u003c\/td\u003e\n\u003ctd\u003eDo not assume every V8 model uses this gasket; verify the original part.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eExhaust Elbow Gasket\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eWet-joint exhaust connection\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eBolted manifold-to-riser or elbow joint\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eComposite fiber gasket material\u003c\/dd\u003e\n  \u003cdt\u003eColor\u003c\/dt\u003e\n\u003cdd\u003eBrown\/tan, subject to production variation\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eExhaust elbow or riser to manifold\u003c\/dd\u003e\n  \u003cdt\u003ePackage Configuration\u003c\/dt\u003e\n\u003cdd\u003eSingle gasket\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 x Exhaust Elbow Gasket\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure the engine is completely cool and disconnect the battery before starting work.\u003c\/li\u003e\n  \u003cli\u003eDrain coolant or cooling water as required by the engine service procedure, then carefully remove the exhaust riser or elbow.\u003c\/li\u003e\n  \u003cli\u003eRemove all remnants of the old gasket from both mating surfaces. Avoid scratching or distorting the manifold and elbow faces.\u003c\/li\u003e\n  \u003cli\u003ePosition the new gasket on the manifold and align all bolt holes and water passages. Install it dry unless the engine service manual specifies otherwise.\u003c\/li\u003e\n  \u003cli\u003eReinstall the exhaust riser or elbow and tighten the fasteners in the specified sequence and to the manufacturer’s torque values.\u003c\/li\u003e\n  \u003cli\u003eRestore the cooling system as required, reconnect the battery and run the engine while checking for exhaust, coolant or water leakage.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing exhaust elbow gasket?\u003c\/summary\u003e\u003cp\u003ePossible signs include water or coolant leakage at the manifold-to-riser joint, visible steam, exhaust odor, overheating or evidence of water entering an exhaust passage. Stop operation and inspect the joint if these symptoms occur.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a wet-joint or dry-joint gasket?\u003c\/summary\u003e\u003cp\u003eThis gasket is listed for wet-joint exhaust connections. Confirm the exhaust design and water-passage layout on your engine before ordering or installing it.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I reuse my old gasket?\u003c\/summary\u003e\u003cp\u003eNo. Exhaust gaskets are generally single-use sealing components. Replace the gasket whenever the manifold or riser connection is disassembled.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need sealant during installation?\u003c\/summary\u003e\u003cp\u003eInstall the gasket according to the engine manufacturer’s service instructions. Do not apply sealant unless the applicable service manual specifically requires it.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this fit every MerCruiser 2.5L, 3.0L or V8 engine?\u003c\/summary\u003e\u003cp\u003eNo universal fitment should be assumed. The gasket is listed for selected MerCruiser applications, and fitment may depend on the engine model, year, serial range and exhaust-manifold design. Compare the original gasket and verify the service information before purchase.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat happens if I use the wrong gasket?\u003c\/summary\u003e\u003cp\u003eAn incorrect gasket can misalign water passages or fail to seal the exhaust connection, potentially causing leaks, overheating, corrosion or water intrusion. Confirm the part profile and application before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eThis listing is for an aftermarket replacement gasket, not a MerCruiser-branded OEM component. It is listed as a replacement for MerCruiser 27-997771 and Sierra 18-2833-9.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed and cost\u003c\/summary\u003e\u003cp\u003eAvailable shipping methods, delivery estimates and costs are shown at checkout and vary by destination.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty and returns\u003c\/summary\u003e\u003cp\u003eWarranty and return eligibility are governed by the applicable store policies. Contact support with your order details if you need assistance.\u003c\/p\u003e\u003c\/details\u003e\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the engine model, year, serial range, original gasket shape and exhaust design before ordering.\u003c\/li\u003e\n  \u003cli\u003eDo not operate the engine if exhaust, coolant or water leaks are present after installation.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when removing or reinstalling marine exhaust components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — We supply replacement components for a range of marine repair applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Support\u003c\/strong\u003e — Verify model and part details before installation to help ensure the correct replacement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConvenient Fulfillment\u003c\/strong\u003e — Shipping options and delivery estimates are provided during checkout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718265901371,"sku":"KF24GK061","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/KF24GK061.png?v=1762958533"},{"product_id":"exhaust-elbow-gasket-fits-mercruiser-v6-v8-engines-replaces-27-863724","title":"Exhaust Elbow Gasket (Restrictor) for MerCruiser V6\/V8 Engines – Replaces 27-41813, 27-860233 and 27-863724","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\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 aftermarket \u003cstrong\u003erestrictor-style exhaust elbow gasket\u003c\/strong\u003e is designed for applicable MerCruiser V6 and V8 marine engines using a compatible center-riser exhaust arrangement. It installs between the exhaust manifold and riser or elbow to help seal the joint and regulate raw-water flow in systems that specify a restricted gasket.\u003c\/p\u003e\n\u003cp\u003eThe gasket replaces Mercury\/MerCruiser OEM references \u003cstrong\u003e27-41813\u003c\/strong\u003e, \u003cstrong\u003e27-860233\u003c\/strong\u003e, and \u003cstrong\u003e27-863724\u003c\/strong\u003e. The corresponding Sierra aftermarket reference is \u003cstrong\u003e18-0897\u003c\/strong\u003e. Catalog information identifies this restrictor gasket for use with compatible risers such as Sierra 18-1976-2 and 18-1970-2.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestrictor-style exhaust elbow gasket for compatible wet-joint exhaust systems.\u003c\/li\u003e\n  \u003cli\u003eInstalls between the exhaust manifold and riser or elbow.\u003c\/li\u003e\n  \u003cli\u003eSuitable only when the engine and exhaust components call for this gasket style.\u003c\/li\u003e\n  \u003cli\u003eVerify the gasket shape, openings, riser application and part number before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThese references are provided for identification and interchange research. They do not replace confirmation of the complete exhaust-manifold and riser configuration.\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\u003eReference Type\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e27-41813\u003c\/td\u003e\n        \u003ctd\u003eOEM replacement reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e27-860233\u003c\/td\u003e\n        \u003ctd\u003eOEM replacement reference; restricted center-riser gasket\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e27-863724\u003c\/td\u003e\n        \u003ctd\u003eOEM replacement reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-0897\u003c\/td\u003e\n        \u003ctd\u003eAftermarket equivalent reference; restrictor gasket\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\u003eThis gasket is associated with a range of MerCruiser V6 and V8 applications, but exact fitment depends on the exhaust manifold, riser or elbow design, gasket opening pattern and cooling configuration. Model, year and horsepower alone are not sufficient to confirm fitment.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Application Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eApplication\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eOEM Reference\u003c\/th\u003e\n        \u003cth\u003eApplication Notes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003eApplicable V6 and V8 marine engines\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke gasoline marine engine\u003c\/td\u003e\n        \u003ctd\u003e27-41813, 27-860233, 27-863724\u003c\/td\u003e\n        \u003ctd\u003eUse only with a compatible wet-joint center-riser exhaust arrangement that specifies a restrictor gasket.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This listing does not establish fitment for every MerCruiser V6 or V8 engine, every production year, or every manifold and riser combination. Compare the removed gasket and verify the engine service-manual or parts-catalog requirement before installation.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eExhaust elbow gasket\u003c\/dd\u003e\n  \u003cdt\u003eGasket Style\u003c\/dt\u003e\n  \u003cdd\u003eRestrictor\u003c\/dd\u003e\n  \u003cdt\u003eInstallation Location\u003c\/dt\u003e\n  \u003cdd\u003eBetween the exhaust manifold and riser or elbow\u003c\/dd\u003e\n  \u003cdt\u003eCooling Application\u003c\/dt\u003e\n  \u003cdd\u003eCompatible raw-water wet-joint cooling systems that specify a restrictor gasket\u003c\/dd\u003e\n  \u003cdt\u003ePrimary Marine Application\u003c\/dt\u003e\n  \u003cdd\u003eMerCruiser V6 and V8 engines with compatible exhaust hardware\u003c\/dd\u003e\n  \u003cdt\u003eAftermarket Reference\u003c\/dt\u003e\n  \u003cdd\u003eSierra 18-0897\u003c\/dd\u003e\n  \u003cdt\u003eOEM Replacement References\u003c\/dt\u003e\n  \u003cdd\u003eMercury\/MerCruiser 27-41813, 27-860233 and 27-863724\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Restrictor exhaust elbow gasket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOnly the gasket is included. Riser, elbow, manifold, mounting hardware, sealants and other service parts are not included unless specifically stated in the order details.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and allow the engine to cool completely before beginning work.\u003c\/li\u003e\n  \u003cli\u003eClose or drain the cooling system as required by the engine service manual.\u003c\/li\u003e\n  \u003cli\u003eDisconnect hoses and any sensors attached to the exhaust elbow or riser.\u003c\/li\u003e\n  \u003cli\u003eRemove the fasteners securing the riser or elbow to the exhaust manifold and carefully separate the components.\u003c\/li\u003e\n  \u003cli\u003eRemove all old gasket material and corrosion from both mating surfaces. Do not damage or distort the sealing faces.\u003c\/li\u003e\n  \u003cli\u003eCompare the new gasket with the removed gasket and confirm the bolt holes and water and exhaust passages are correctly aligned.\u003c\/li\u003e\n  \u003cli\u003eInstall the gasket in the orientation specified by the engine or exhaust-component service information.\u003c\/li\u003e\n  \u003cli\u003eReinstall the riser or elbow and tighten the fasteners in the specified sequence and to the manufacturer's torque specification.\u003c\/li\u003e\n  \u003cli\u003eReconnect hoses and sensors, restore the cooling system and inspect the assembly before starting the engine.\u003c\/li\u003e\n  \u003cli\u003eRun the engine carefully and check for exhaust, water or cooling leaks around the joint.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat does “restrictor” mean?\u003c\/summary\u003e\u003cp\u003eA restrictor gasket includes a restricted passage intended for exhaust systems and cooling configurations that require controlled water flow. Do not substitute an open gasket unless the engine and exhaust-manifold documentation specifically calls for it.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this fit every MerCruiser V6 or V8 engine?\u003c\/summary\u003e\u003cp\u003eNo. MerCruiser V6 and V8 engines use different manifold, riser, elbow and gasket configurations. Confirm the OEM reference, gasket shape and complete exhaust arrangement before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich OEM numbers does this gasket replace?\u003c\/summary\u003e\u003cp\u003eCatalog references identify Mercury\/MerCruiser 27-41813, 27-860233 and 27-863724 as replacement references for this restrictor-style gasket.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhich risers are associated with this gasket?\u003c\/summary\u003e\u003cp\u003eCatalog information associates the gasket with compatible riser references including Sierra 18-1976-2 and 18-1970-2. Confirm the complete application before installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this gasket for a dry-joint exhaust system?\u003c\/summary\u003e\u003cp\u003eThis listing is intended for compatible traditional wet-joint exhaust arrangements. Dry-joint systems may use a different gasket design; compare the original part and service documentation before purchase.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDo I need one gasket per engine bank?\u003c\/summary\u003e\u003cp\u003eMany V6 and V8 exhaust systems use one manifold-to-riser gasket per cylinder bank, but the required quantity depends on the specific exhaust arrangement. Confirm the quantity needed for your engine before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM component?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement gasket identified by the listed Mercury\/MerCruiser OEM references and the Sierra 18-0897 aftermarket reference.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the OEM reference, gasket profile, passage layout and exhaust-component application before purchase.\u003c\/li\u003e\n  \u003cli\u003eDo not use a restrictor gasket where the engine or exhaust system requires an open gasket, and do not use an open gasket where a restrictor is specified.\u003c\/li\u003e\n  \u003cli\u003eAllow the engine to cool before service and follow the manufacturer's torque and installation procedures.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when exhaust, cooling or manifold service procedures are unfamiliar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Parts Focus\u003c\/strong\u003e — We supply replacement parts for marine engines and exhaust systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Conscious Listings\u003c\/strong\u003e — Part-number and configuration details are provided to help customers verify compatibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAftermarket Value\u003c\/strong\u003e — Replacement components are offered as practical alternatives to original service parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723787374907,"sku":"HY-1TD8-ZNLD","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/HY-1TD8-ZNLD.png?v=1763031757"}],"url":"https:\/\/seasierra.com\/collections\/mercruiser-240hp-4-stroke-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}