{"title":"Universal 4-Stroke 35HP Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"max-width:1000px;padding:16px 12px;\"\u003e\n  \u003cp\u003eThis page supports Universal 4‑Stroke 35HP outboard engines. Use it to find compatible parts and service information, including maintenance tips, frequently used replacement parts, and troubleshooting guidance. You can also browse brand collections such as \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha\"\u003eYamaha\u003c\/a\u003e, \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury\u003c\/a\u003e, \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\"\u003eHonda\u003c\/a\u003e, \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-outboard-parts\"\u003eSuzuki\u003c\/a\u003e, \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\"\u003eTohatsu\u003c\/a\u003e, and \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-outboard-parts\"\u003eJohnson\/Evinrude\/OMC\u003c\/a\u003e. Scroll to the bottom of the page to start browsing parts for this engine. On any collection page, use the “Filter \u0026amp; Sort” controls to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003cp\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\" style=\"display:inline-block;padding:10px 16px;background:#0b6efd;color:#fff;border-radius:6px;text-decoration:none;\"\u003eShop Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n  \u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width:1000px;padding:16px 12px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 35HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate\/serial plate is typically on the transom or swivel bracket; some models also have a decal on the clamp bracket or a sticker under the engine cover.\u003c\/li\u003e\n    \u003cli\u003eModel codes and suffixes indicate horsepower (35), shaft length (S\/L\/XL), tiller or remote control, electric vs. manual start, and sometimes year or revision.\u003c\/li\u003e\n    \u003cli\u003eMost modern 35HP four‑strokes are EFI inline‑3 platforms; older designs may be carbureted. Confirm whether yours is EFI or carb for correct fuel and intake parts.\u003c\/li\u003e\n    \u003cli\u003eRecord serial\/VIN, exact model code, and shaft length—these details are important for matching lower‑unit, water pump, and propeller parts.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"max-width:1000px;padding:16px 12px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eModern EFI 4‑Stroke (Inline‑3, 35HP Class)\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 #ddd;padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;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;\"\u003eInline‑3 EFI four‑stroke, small‑displacement (approx. 500–700cc), SOHC with modern ignition and alternator output suitable for accessories.\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;\"\u003eTypical 35HP variants within 30–40HP families across major brands (examples include Yamaha F‑series, Mercury EFI 30\/40 families, Honda BF30, Suzuki DF30\/40 families, Tohatsu MFS35\/40).\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;\"\u003eQuiet operation, strong mid‑range torque, improved cold‑start and fuel economy vs. carbureted predecessors.\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;\"\u003eMany service parts (water pump kits, gearcase seals, anodes) may be shared across 30–40HP family siblings; verify by model code and serial. Ensure any auxiliary\/kicker bracket is rated for 35HP and the engine’s actual weight.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eLegacy Carbureted 4‑Stroke (Inline‑3 or Twin)\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 #ddd;padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;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;\"\u003eInline‑3 (some twin‑cylinder) carbureted 4‑stroke with mechanical fuel delivery and conventional ignition modules.\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;\"\u003eEarly 35HP four‑stroke offerings from major brands; typically share many components with 30–40HP sister models of the same era.\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;\"\u003eSimple to service; fewer sensors and wiring vs. EFI systems.\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;\"\u003eCarb cleaning\/jetting is a common service. Ethanol fuel can accelerate varnish—use stabilizer and replace filters regularly.\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:1000px;padding:16px 12px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for four‑stroke outboards; always follow your engine’s official service manual and local operating conditions.\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 #ddd;padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;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 \u0026amp; Filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eUse marine FC‑W oil; replace filter at each oil change after break‑in.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\"\u003eOil 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 (Lower Unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect for water contamination\/metal; replace drain\/vent gaskets.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/lower-unit-seal-kits\"\u003eLower Unit Seal 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 100 hours; replace as needed\/200 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eVerify correct heat range and gap for your model.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark plug\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;\"\u003e100–200 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eReplace more often with ethanol fuel or contamination.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel 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\/Kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e2 seasons or 200 hours (sooner if weak tell‑tale)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eReplace complete kit if overheating, dry‑run, or sand ingestion occurred.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/water-pump-impeller-rebuild-kits\"\u003eWater Pump Impeller Rebuild Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eAnodes (Sacrificial)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect every 50 hours; replace when 50% consumed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eUse alloy suited to water type (zinc\/brackish or aluminum\/fresh\/salt).\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePropeller \u0026amp; Hardware\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect each trip\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eCheck for dings, fishing line on shaft, and correct hub; torque nut.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\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:1000px;padding:16px 12px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/water-pump-impeller-rebuild-kits\"\u003eWater Pump Impeller Rebuild Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark plug\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-pumps\"\u003eFuel Pumps\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase \u0026amp; Seals: \u003ca href=\"https:\/\/seasierra.com\/collections\/lower-unit-seal-kits\"\u003eLower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion \u0026amp; Trim: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/outboard-hydrofoil-stabilizers\"\u003eOutboard Hydrofoil Stabilizers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e and safety add‑ons like \u003ca href=\"https:\/\/seasierra.com\/collections\/propeller-guards\"\u003ePropeller Guards\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width:1000px;padding:16px 12px;\"\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 #ddd;padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;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;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eClear intake screens; inspect impeller housing and thermostat; verify hose routing.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eWater pump kit, thermostat, intake screen\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;\"\u003eConfirm fresh fuel; replace clogged filter; check plug condition and gap; on EFI, check battery voltage and connectors.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eFuel filter, spark plugs, injector service\/cleaning\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eInspect prop for damage or wrong pitch; verify throttle opening; check compression and fuel delivery.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePropeller, fuel pump\/filter, spark plugs\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; look for fishing line at prop shaft; pressure test seals.\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;\"\u003eVentilation\/cavitation in turns\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003eVerify engine height and trim; inspect prop edges; consider anti‑ventilation aids.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #eee;\"\u003ePropeller, hydrofoil stabilizer\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:1000px;padding:16px 12px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different 35HP years or brands?\u003c\/summary\u003e\n    \u003cp\u003eSome service parts interchange within the same brand family (e.g., 30–40HP platforms), but compatibility varies by year, shaft length, and gearcase revision. Always confirm with your exact model code and serial.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eAs a rule of thumb, inspect annually and replace every 2 seasons or ~200 hours. Replace sooner after sand ingestion, dry running, or any overheating event.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eChange every 100 hours or annually. If water or metal is found, service seals and re‑test before further use.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to verify part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide brand, exact model code, serial number, horsepower, shaft length (S\/L\/XL), and control\/start type (tiller\/remote; manual\/electric). Photos of the nameplate and the part in question are very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width:1000px;padding:16px 12px;\"\u003e\n  \u003cp\u003eReady to find parts for your 35HP four‑stroke? Browse parts by brand, horsepower, year, and model on our collections.\u003c\/p\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\" style=\"display:inline-block;padding:10px 16px;background:#0b6efd;color:#fff;border-radius:6px;text-decoration:none;\"\u003eStart with Service \u0026amp; Maintenance Kits\u003c\/a\u003e\u003c\/p\u003e\n  \u003cp style=\"color:#555;\"\u003eIf you’re unsure about your model, send us a clear photo of the nameplate and the part you need—we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"hydrofoil-stabilizer-marine-outboard-and-sterndrive-motors-5-150-hp-replaces-quickmarine-hs001","title":"Hydrofoil Stabilizer – Marine Outboard and Sterndrive Motors 5–150 HP (Replaces QuickMarine HS001)","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\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis universal-fit \u003cstrong\u003eHydrofoil Stabilizer – Fits Marine Outboard and Sterndrive Motors 5–150 HP\u003c\/strong\u003e is designed for outboard and sterndrive motors from 5–150 HP, compatible with most major brands including Yamaha, Mercury, Honda, Suzuki, and Tohatsu. Made of durable, marine-grade UV-resistant reinforced nylon (PA66) plastic, it enhances performance for a variety of boats, especially beneficial for aluminum boats, jon boats, and inflatable boats by improving planing speed and stability.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct aftermarket replacement for QuickMarine HS001-White and FO2001 hydrofoils.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls directly onto the engine's cavitation plate with the included SS316 hardware.\u003c\/li\u003e\n\u003cli\u003eImproves planing speed, reduces porpoising (bow oscillation), and increases stability during operation.\u003c\/li\u003e\n\u003cli\u003eModern design eliminates the downturned trailing edge and cupped underside to reduce drag.\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 suppliers.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eQuickMarine\u003c\/td\u003e\n        \u003ctd\u003eHS001-White\u003c\/td\u003e\n        \u003ctd\u003eDirect Replacement\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAftermarket\u003c\/td\u003e\n        \u003ctd\u003eFO2001\u003c\/td\u003e\n        \u003ctd\u003eDirect Replacement\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 and horsepower in the table below. This hydrofoil offers a universal fit for most engines in its designated horsepower range.\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\u003eMotor Types\u003c\/th\u003e\n        \u003cth\u003eHP Range\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\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e5–150 HP\u003c\/td\u003e\n        \u003ctd\u003eAll 2-stroke and 4-stroke models\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003eOutboard\/Sterndrive\u003c\/td\u003e\n        \u003ctd\u003e5–150 HP\u003c\/td\u003e\n        \u003ctd\u003eAll 2-stroke and 4-stroke models\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e5–150 HP\u003c\/td\u003e\n        \u003ctd\u003eAll 4-stroke models\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSuzuki\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e5–150 HP\u003c\/td\u003e\n        \u003ctd\u003eAll 2-stroke and 4-stroke models\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eTohatsu\u003c\/td\u003e\n        \u003ctd\u003eOutboard\u003c\/td\u003e\n        \u003ctd\u003e5–150 HP\u003c\/td\u003e\n        \u003ctd\u003eAll 2-stroke and 4-stroke models\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOther\u003c\/td\u003e\n        \u003ctd\u003eOutboard\/Sterndrive\u003c\/td\u003e\n        \u003ctd\u003e5–40 HP\u003c\/td\u003e\n        \u003ctd\u003eParticularly effective on smaller motors\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\u003eHydrofoil Stabilizer\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eEngine-mounted with included hardware\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMarine-grade UV-resistant reinforced nylon (PA66) plastic\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eWhite\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eEach wing: 10-1\/4\" × 8-1\/4\" (260 mm × 210 mm)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e2.45 lbs (1.11 kg)\u003c\/dd\u003e\n  \u003cdt\u003eMounting Type\u003c\/dt\u003e\n\u003cdd\u003eEngine mount (cavitation plate)\u003c\/dd\u003e\n  \u003cdt\u003eAssembly Required\u003c\/dt\u003e\n\u003cdd\u003eYes\u003c\/dd\u003e\n  \u003cdt\u003eCompatibility\u003c\/dt\u003e\n\u003cdd\u003eUniversal fit for 5-150 HP outboard and sterndrive motors\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Hydrofoil Stabilizer (HS001-White)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e4 x Sets\u003c\/span\u003e of SS316 bolts, nuts, and gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the engine is switched off and the outboard is tilted up to a comfortable working position.\u003c\/li\u003e\n\u003cli\u003eCenter one wing of the hydrofoil on the anti-cavitation plate of your motor.\u003c\/li\u003e\n\u003cli\u003eUse a marker to carefully mark the locations for the two mounting holes on that side.\u003c\/li\u003e\n\u003cli\u003eRemove the hydrofoil and drill the marked holes using an appropriately sized drill bit for the included hardware.\u003c\/li\u003e\n\u003cli\u003ePlace the hydrofoil back onto the plate, aligning it with the drilled holes.\u003c\/li\u003e\n\u003cli\u003eInsert the SS316 bolts from the top and secure them loosely with the provided gaskets and nuts from underneath.\u003c\/li\u003e\n\u003cli\u003eRepeat the process for the other wing.\u003c\/li\u003e\n\u003cli\u003eOnce both sides are attached, tighten all four nuts evenly and securely. Do not overtighten, as this could damage the cavitation plate.\u003c\/li\u003e\n\u003cli\u003eCheck that the hydrofoil is firmly attached and does not interfere with the propeller's movement.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the optimal HP range for this hydrofoil?\u003c\/summary\u003e\n  \u003cp\u003eWhile this hydrofoil is compatible with motors up to 150 HP, it is especially effective on smaller motors in the 5–40 HP range. It helps lighter boats get on plane faster and improves stability at low speeds.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this fit my specific engine model?\u003c\/summary\u003e\n  \u003cp\u003eThis product features a universal design intended for most outboard and sterndrive motors from 5–150 HP. As no specific brand-model-year compatibility chart is available, you should verify the fit by checking your engine's anti-cavitation plate dimensions against the hydrofoil's size: each wing measures 10-1\/4\" × 8-1\/4\".\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow does this design help reduce drag?\u003c\/summary\u003e\n  \u003cp\u003eUnlike older hydrofoil designs, this model eliminates the downturned trailing edge and cupped underside. This modern, streamlined profile reduces drag through the water, leading to better fuel efficiency and speed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs drilling required for installation?\u003c\/summary\u003e\n  \u003cp\u003eYes, installation requires drilling four holes into the motor's anti-cavitation plate. This allows you to securely bolt the hydrofoil in place for safe and effective operation. All necessary mounting hardware is included.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the main performance benefits?\u003c\/summary\u003e\n  \u003cp\u003eThis hydrofoil improves planing speed, reduces the time it takes to get on plane, minimizes porpoising (bow oscillation), and provides significantly better stability and tracking during operation. It is particularly beneficial for aluminum boats, jon boats, and inflatable boats.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an original QuickMarine part?\u003c\/summary\u003e\n  \u003cp\u003eNo, this is an aftermarket replacement for the QuickMarine HS001-White. It is designed to match the fit and function of the original part using comparable high-quality materials.\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). It is built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility, where it is batch-inspected for consistency and reliability.\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 time is 5–15 days. Standard shipping is free to most regions, with expedited options available at checkout where applicable.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their original condition. See our full 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 and specifications against your original part before purchasing. If anything differs—even if your model appears on a compatibility list—do not order.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement part, not an original equipment manufacturer (OEM) component. Part numbers and brand names are used for reference only.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is highly recommended for safety, proper function, and optimal performance. Improper installation can lead to component failure or unsafe operating conditions.\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 rigorously tested for real-world reliability and performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — With warehouses worldwide, we offer free standard delivery to most regions in 5–15 days and provide transparent tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — By working directly with manufacturers, we deliver high-quality components at fair prices without compromising on materials or quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717907026235,"sku":"HS001-Grey-QM","price":41.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/HS001-Grey-QM.png?v=1762938108"},{"product_id":"hydrofoil-stabilizer-fits-outboard-motors-stern-drives-5-150-hp-replaces-seasierra-19hs-uanofcn-fo2001","title":"Hydrofoil Stabilizer – Fits Outboard Motors \u0026 Stern Drives 5-150 HP (Replaces SeaSierra 19HS, Uanofcn FO2001)","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\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis universal \u003cstrong\u003eHydrofoil Stabilizer – Fits Outboard Motors \u0026amp; Stern Drives 5-150 HP (Dorsal Fin Style)\u003c\/strong\u003e is engineered for a wide range of boats with 5-150 HP outboard motors and stern drives (supporting some vessels up to 200 HP). Its dorsal fin design, constructed from high-strength reinforced Nylon PA66 plastic, improves on-plane performance, increases stability, and reduces cavitation.\u003c\/p\u003e\n\u003cp\u003eThis unit serves as a direct replacement for SeaSierra 19HS, Uanofcn FO2001, JLM Marine Hydrofoil Stabilizer, and HS001 Doel-Fin models.\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003eFeatures a bolt-on installation method, requiring drilling into the cavitation plate.\u003c\/li\u003e\n    \u003cli\u003eBuilt with marine-grade, UV-resistant materials to withstand harsh saltwater and freshwater environments.\u003c\/li\u003e\n    \u003cli\u003eThe kit includes all necessary stainless steel mounting hardware and a 6.5mm drill bit for a complete setup.\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\u003eSeaSierra\u003c\/td\u003e\n        \u003ctd\u003e19HS\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eUanofcn\u003c\/td\u003e\n        \u003ctd\u003eFO2001\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eJLM Marine\u003c\/td\u003e\n        \u003ctd\u003eHydrofoil Stabilizer\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eDoel-Fin\u003c\/td\u003e\n        \u003ctd\u003eHS001\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel Type\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eApplication\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\u003eAll Brands\u003c\/td\u003e\n        \u003ctd\u003eOutboard Motors\u003c\/td\u003e\n        \u003ctd\u003e5-150 HP\u003c\/td\u003e\n        \u003ctd\u003eUniversal fit\u003c\/td\u003e\n        \u003ctd\u003eNot compatible with Volvo Penta 280\/290 outdrives and BMW Outdrives for engines over 50HP\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAll Brands\u003c\/td\u003e\n        \u003ctd\u003eStern Drives\u003c\/td\u003e\n        \u003ctd\u003e5-150 HP\u003c\/td\u003e\n        \u003ctd\u003eUniversal fit\u003c\/td\u003e\n        \u003ctd\u003eCompatible with Volvo Penta 270 outdrive\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAll Brands\u003c\/td\u003e\n        \u003ctd\u003eOutboards\/Outdrives\u003c\/td\u003e\n        \u003ctd\u003eUp to 200 HP\u003c\/td\u003e\n        \u003ctd\u003eUniversal fit\u003c\/td\u003e\n        \u003ctd\u003ePerformance may vary based on boat configuration\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\u003eHydrofoil Stabilizer, Dorsal Fin Style\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eBolt-on (drilling required)\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eReinforced Nylon PA66 Plastic\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eH: 10-1\/4 inches (260 mm), W: 8-1\/4 inches (210 mm)\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eBolt-on with stainless steel hardware\u003c\/dd\u003e\n  \u003cdt\u003eCompatible HP Range\u003c\/dt\u003e\n\u003cdd\u003e5-150 HP (up to 200 HP)\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eUV-Resistant, Marine-grade construction\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e1 x Hydrofoil Stabilizer\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e4 x Sets\u003c\/span\u003e of Stainless Steel Mounting Hardware (bolts, nuts, washers)\u003c\/li\u003e\n    \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e1 x Drill bit (6.5mm)\u003c\/span\u003e\u003c\/li\u003e\n    \u003cli\u003e1 x Installation Instructions\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 boat is secured on a trailer or lift before beginning.\u003c\/li\u003e\n    \u003cli\u003eCenter the hydrofoil on the anti-cavitation plate of your motor. Verify it does not obstruct the propeller's path of motion.\u003c\/li\u003e\n    \u003cli\u003eUse a pencil or marker to mark the four drill points on the plate through the hydrofoil's mounting holes.\u003c\/li\u003e\n    \u003cli\u003eRemove the hydrofoil and carefully drill the marked holes using the included 6.5mm drill bit.\u003c\/li\u003e\n    \u003cli\u003eReposition the hydrofoil, aligning it with the newly drilled holes.\u003c\/li\u003e\n    \u003cli\u003eInsert the stainless steel bolts from the top down, placing a washer and nut on each bolt from underneath the plate.\u003c\/li\u003e\n    \u003cli\u003eTighten all nuts evenly until the hydrofoil is firmly secured. Do not overtighten to avoid damaging the plate.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this hydrofoil fit my specific motor model?\u003c\/summary\u003e\n  \u003cp\u003eThis is a universal stabilizer designed for most outboard and stern drive engines from 5-150 HP. It is compatible with all major brands like Mercury, Yamaha, Honda, and Suzuki. Please note the specific exclusions for Volvo Penta 280\/290 and certain BMW outdrives over 50 HP.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat performance benefits can I realistically expect?\u003c\/summary\u003e\n  \u003cp\u003eBenefits vary by boat hull, weight, and operating conditions, but users typically report getting on plane faster, maintaining plane at lower speeds, reduced porpoising and bouncing, and improved stability and handling.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs it safe to drill into my engine's cavitation plate?\u003c\/summary\u003e\n  \u003cp\u003eYes, drilling into the cavitation plate is the standard and accepted method for mounting hydrofoils. The plate is designed to be strong enough for this modification. Ensure drilling is done carefully according to the instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if the hydrofoil is installed correctly?\u003c\/summary\u003e\n  \u003cp\u003eA correct installation will be perfectly centered on the cavitation plate, with the hydrofoil sitting level. All mounting hardware should be tight, and there should be no wobble or movement. Ensure it does not interfere with the propeller or steering linkage.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow does the Nylon PA66 material compare to aluminum hydrofoils?\u003c\/summary\u003e\n  \u003cp\u003eNylon PA66 is a high-strength, impact-resistant engineering plastic that is impervious to corrosion and UV damage, making it ideal for marine environments. Unlike aluminum, it will not corrode, bend, or fatigue from vibration over time.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes the hydrofoil require any regular maintenance?\u003c\/summary\u003e\n  \u003cp\u003eThe hydrofoil itself is maintenance-free. However, it is good practice to periodically check that the stainless steel mounting bolts remain tight as part of your regular pre-launch inspection.\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":50717907091771,"sku":"SS-19HS001","price":29.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/SS-19HS001.png?v=1762938109"},{"product_id":"hand-fuel-primer-bulb-fits-mercury-yamaha-johnson-evinrude-replaces-9001080a-50073805-73805","title":"Hand Fuel Primer Bulb – Fits Mercury, Yamaha, Johnson\/Evinrude (Replaces 9001080A, 50073805, 73805)","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\u003eHand Fuel Primer Bulb – Fits Marine\/Boat\/Outboard Motors (Replaces 9001080A, 3\/8\")\u003c\/strong\u003e is designed for most marine vessels with 3\/8\" (10mm) fuel lines. It is suitable for outboard motors from major brands like Mercury, Yamaha, and Johnson\/Evinrude that use low-pressure carbureted fuel systems.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct replacement for multiple OEM and aftermarket parts, including Mercury 9001080A and Johnson\/Evinrude 50073805, among others requiring a 3\/8\" primer bulb.\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003eInstalls in-line with your existing fuel hose.\u003c\/li\u003e\n    \u003cli\u003eConstructed with aging-resistant NBR rubber for durability in marine environments.\u003c\/li\u003e\n    \u003cli\u003eFeatures a one-way internal check valve for reliable fuel flow.\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 \/ Mariner\u003c\/td\u003e\n        \u003ctd\u003e9001080A\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eJohnson \/ Evinrude\u003c\/td\u003e\n        \u003ctd\u003e50073805, 73805\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eScepter Marine\u003c\/td\u003e\n        \u003ctd\u003e3\/8\" EPA\/CARB Primer Bulb\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eJLM Marine\u003c\/td\u003e\n        \u003ctd\u003e3\/8\" Hand Fuel Pump\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 Mercury\/Mariner, this part fits a wide range of 2-stroke and 4-stroke carbureted outboards from 4 to 300 HP.\u003c\/p\u003e\n\u003cp\u003eFor Johnson\/Evinrude, this part is compatible with various 2-stroke and 4-stroke carbureted models from 2 to 140 HP.\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\u003eMercury\/Mariner\u003c\/td\u003e\n        \u003ctd\u003eVarious Outboards\u003c\/td\u003e\n        \u003ctd\u003e4-300 HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e9001080A\u003c\/td\u003e\n        \u003ctd\u003eFor carbureted models only\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n        \u003ctd\u003eVarious Outboards\u003c\/td\u003e\n        \u003ctd\u003e2-140 HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke \u0026amp; 4-Stroke\u003c\/td\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003e50073805, 73805\u003c\/td\u003e\n        \u003ctd\u003eFor carbureted 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\u003eHand Fuel Primer Bulb \/ Fuel Pump\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eIn-line\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline, Diesel (Low-pressure systems)\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003e3\/8\" (10mm) Hose Barbs on both ends\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eNBR (Nitrile Butadiene Rubber) with aluminum alloy components\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eApproximately 15 cm × 5 cm × 5 cm\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003eApproximately 0.1 kg (0.22 lbs)\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eBarbed hose fittings\u003c\/dd\u003e\n  \u003cdt\u003eWorking Pressure\u003c\/dt\u003e\n\u003cdd\u003eLow-pressure carbureted systems (3-6 PSI)\u003c\/dd\u003e\n  \u003cdt\u003eOperating Temperature\u003c\/dt\u003e\n\u003cdd\u003e-20°C to 60°C (-4°F to 140°F)\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eOne-way internal check valve; Aging-resistant construction; Compatible with ethanol-blend fuels\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 ×\u003c\/span\u003e Hand Primer Bulb with 3\/8\" (10mm) Hose Barbs (9001080A, 50073805, 73805)\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 cool. Disconnect the battery for safety.\u003c\/li\u003e\n    \u003cli\u003ePlace a rag or container under the fuel line to catch any spillage.\u003c\/li\u003e\n    \u003cli\u003eNote the fuel flow direction, indicated by an arrow on the old bulb.\u003c\/li\u003e\n    \u003cli\u003eUsing pliers, loosen the clamps on the old primer bulb and slide them away from the ends.\u003c\/li\u003e\n    \u003cli\u003eCarefully twist and pull the fuel lines off the old bulb's barbs.\u003c\/li\u003e\n    \u003cli\u003eInstall the new primer bulb, making sure the arrow points in the direction of fuel flow (towards the engine).\u003c\/li\u003e\n    \u003cli\u003eSecure the fuel lines onto the new barbs and reposition the clamps to ensure a tight seal.\u003c\/li\u003e\n    \u003cli\u003eSqueeze the new bulb several times until it feels firm, which indicates it is filled with fuel.\u003c\/li\u003e\n    \u003cli\u003eCheck thoroughly for any leaks around the connections.\u003c\/li\u003e\n    \u003cli\u003eAfter confirming there are no leaks, reconnect the battery, start the engine, and check again.\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 primer bulb fits my engine?\u003c\/summary\u003e\u003cp\u003eThis bulb is designed for universal application on carbureted marine engines using a 3\/8\" (10mm) fuel line. Please check your fuel line diameter and cross-reference your OEM part number with our Part Number Matrix. It is not suitable for high-pressure EFI\/DFI systems.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the correct installation orientation?\u003c\/summary\u003e\u003cp\u003eThe primer bulb must be installed with the molded arrow pointing in the direction of fuel flow. On most boats, fuel flows from the tank towards the engine. Incorrect installation will prevent fuel from reaching the engine.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing primer bulb?\u003c\/summary\u003e\u003cp\u003eCommon signs include the bulb becoming hard or brittle, visible cracks, fuel leaks, the bulb not staying firm after pumping, or difficulty starting the engine due to a loss of prime.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should I replace my fuel primer bulb?\u003c\/summary\u003e\u003cp\u003eAs a preventative maintenance item, we recommend inspecting it annually and replacing it every 2-3 years, or immediately if you notice any signs of wear, cracking, or leakage. Continuous exposure to sun and ethanol-blended fuels can accelerate aging.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this work with ethanol-blend fuels?\u003c\/summary\u003e\u003cp\u003eYes, this primer bulb is constructed from NBR (Nitrile Butadiene Rubber), which is compatible with modern gasoline containing up to 15% ethanol (E10, E15).\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eThe bulb won't get firm after pumping. What's wrong?\u003c\/summary\u003e\u003cp\u003eThis can be caused by a few issues: 1) The bulb is installed backward (check the flow arrow). 2) There is an air leak elsewhere in the fuel line or at a connection. 3) The internal check valves are not sealing. 4) The fuel tank pickup is clogged. Ensure all connections are tight and the bulb is oriented correctly.\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\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":50717907288379,"sku":"JFC-18-1365","price":20.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/JFC-18-1365.png?v=1762938118"},{"product_id":"hydrofoil-stabilizer-fits-outboard-motors-8-40-hp-replaces-northboat-fo2002-seasierra-200-whale-tail-uanofcn-fo2002","title":"Hydrofoil Stabilizer – Fits Outboard Motors 8-40 HP (Replaces NorthBoat FO2002, SeaSierra 200 Whale Tail, UanofCn FO2002)","description":"\u003cstyle\u003e\n\/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n.ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\/* Base table styles *\/\ntable.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\ntable.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n\/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\ntable.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\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\u003eWhale Tail Hydrofoil Stabilizer\u003c\/strong\u003e is a universal aftermarket performance enhancement for outboard motors and stern drives in the 8-40 HP range. Constructed from durable marine-grade nylon, it helps improve boat handling, reduces porpoising, and decreases planing time for a smoother, more efficient ride.\u003c\/p\u003e\n  \u003cp\u003eThis part is a direct replacement for NorthBoat FO2002, SeaSierra 200 Whale Tail, and UanofCn FO2002.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eMounts directly to the anti-ventilation plate with included stainless steel hardware.\u003c\/li\u003e\n    \u003cli\u003eFeatures a \"Turbo Trac\" design for enhanced turning precision and stability.\u003c\/li\u003e\n    \u003cli\u003eAvailable in multiple colors (Black\/Red\/Blue) to match your engine aesthetic.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket brands.\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\u003eNorthBoat\u003c\/td\u003e\n          \u003ctd\u003eFO2002\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSeaSierra\u003c\/td\u003e\n          \u003ctd\u003e200 Whale Tail\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eUanofCn\u003c\/td\u003e\n          \u003ctd\u003eFO2002\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model and year in the table below. Note that compatibility is based on the specified horsepower range.\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\u003eType \/ Stroke\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\u003eMercury\/Mariner\u003c\/td\u003e\n          \u003ctd\u003eVarious Models\u003c\/td\u003e\n          \u003ctd\u003e8-40\u003c\/td\u003e\n          \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eWill fit most outboards in the HP range, except for Mercury 40-60 HP Four Stroke models.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eVarious Models\u003c\/td\u003e\n          \u003ctd\u003e8-40\u003c\/td\u003e\n          \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eCompatible with most models in the specified HP range.\u003c\/td\u003e\n        \u003c\/tr\u003e\n\u003ctr\u003e\n          \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n          \u003ctd\u003eVarious Models\u003c\/td\u003e\n          \u003ctd\u003e8-40\u003c\/td\u003e\n          \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eCompatible with most models in the specified HP range.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSuzuki\u003c\/td\u003e\n          \u003ctd\u003eVarious Models\u003c\/td\u003e\n          \u003ctd\u003e8-40\u003c\/td\u003e\n          \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eCompatible with most models in the specified HP range.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eHonda\u003c\/td\u003e\n          \u003ctd\u003eVarious Models\u003c\/td\u003e\n          \u003ctd\u003e8-40\u003c\/td\u003e\n          \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n          \u003ctd\u003eCompatible with most models in the specified HP range.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003eVarious Models\u003c\/td\u003e\n          \u003ctd\u003eAll\u003c\/td\u003e\n          \u003ctd\u003eStern Drive\u003c\/td\u003e\n          \u003ctd\u003eCompatible with most sterndrives.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n          \u003ctd\u003eSX-A, DPS, DPR, DPH, 280, 290 Series\u003c\/td\u003e\n          \u003ctd\u003eAll\u003c\/td\u003e\n          \u003ctd\u003eStern Drive\u003c\/td\u003e\n          \u003ctd\u003eRequires additional longer bolts and one fender washer per bolt (not included).\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eVolvo Penta\u003c\/td\u003e\n          \u003ctd\u003eOcean Series XDP\u003c\/td\u003e\n          \u003ctd\u003eAll\u003c\/td\u003e\n          \u003ctd\u003eStern Drive\u003c\/td\u003e\n          \u003ctd\u003eNot compatible.\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eHydrofoil Stabilizer\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eMounts to anti-ventilation plate\u003c\/dd\u003e\n    \u003cdt\u003eConnection\u003c\/dt\u003e\n    \u003cdd\u003eBolt-on with included hardware\u003c\/dd\u003e\n    \u003cdt\u003eHousing Material\u003c\/dt\u003e\n    \u003cdd\u003eMarine Grade Nylon PA66 Plastic\u003c\/dd\u003e\n    \u003cdt\u003eHousing Color\u003c\/dt\u003e\n    \u003cdd\u003eBlack\/Red\/Blue (color options)\u003c\/dd\u003e\n    \u003cdt\u003eDimensions\u003c\/dt\u003e\n    \u003cdd\u003e14.4 in × 17 in (365.8 mm × 431.8 mm)\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n    \u003cdd\u003e1.41 kg (3.1 lbs)\u003c\/dd\u003e\n    \u003cdt\u003eFitting Type\u003c\/dt\u003e\n    \u003cdd\u003eBolt-on\u003c\/dd\u003e\n    \u003cdt\u003eThread Size\u003c\/dt\u003e\n    \u003cdd\u003eUses included stainless steel screws and nuts\u003c\/dd\u003e\n    \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n    \u003cdd\u003e\"Turbo Trac\" design for enhanced turning precision\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 × Hydrofoil Stabilizer\u003c\/li\u003e\n    \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e4 × Sets of stainless steel screws and nuts\u003c\/span\u003e\u003c\/li\u003e\n    \u003cli\u003e1 × 6.5mm Drill Bit\u003c\/li\u003e\n    \u003cli\u003e1 × Installation Instructions\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eEnsure the engine is off and the battery is disconnected for safety.\u003c\/li\u003e\n    \u003cli\u003ePosition the hydrofoil stabilizer onto the anti-ventilation (cavitation) plate, ensuring it is centered.\u003c\/li\u003e\n    \u003cli\u003eUse a marker to carefully mark the four drill hole locations on the plate through the hydrofoil.\u003c\/li\u003e\n    \u003cli\u003eRemove the hydrofoil and use the included 6.5mm drill bit to drill the marked holes.\u003c\/li\u003e\n    \u003cli\u003ePlace the hydrofoil back onto the plate, align the holes, and insert the stainless steel screws from the top.\u003c\/li\u003e\n    \u003cli\u003eSecure each screw with the corresponding nuts from the bottom and tighten firmly. Do not overtighten to avoid cracking the plate or hydrofoil.\u003c\/li\u003e\n    \u003cli\u003eOnce installed, check that all hardware is secure before reconnecting the battery and testing on the water.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know if this hydrofoil will fit my motor?\u003c\/summary\u003e\n    \u003cp\u003eThis stabilizer is designed for a universal fit on outboard motors and stern drives from 8 to 40 horsepower. Please check the compatibility table for specific brand notes. It will not fit Mercury 40-60 HP Four Stroke models or Volvo Penta Ocean Series XDP drives.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the benefit of the \"Turbo Trac\" design?\u003c\/summary\u003e\n    \u003cp\u003eThe \"Turbo Trac\" contouring helps to control prop wash and turbulence, which enhances thrust and tracking. This results in more precise turning control and improved stability, especially at speed.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need special tools for installation?\u003c\/summary\u003e\n    \u003cp\u003eThe package includes the necessary stainless steel mounting hardware and a 6.5mm drill bit. You will need a power drill and wrenches to tighten the nuts and bolts. Professional installation is always recommended for best results.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the signs I need to replace my hydrofoil?\u003c\/summary\u003e\n    \u003cp\u003eInspect your hydrofoil for visible cracks, stress fractures, or any signs of warping or damage, especially around the mounting points. A damaged hydrofoil can negatively affect performance and may become a safety hazard if it fails.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM or aftermarket part?\u003c\/summary\u003e\n    \u003cp\u003eThis is a high-quality aftermarket replacement part, not an original equipment manufacturer (OEM) component. It has been engineered to meet or exceed OEM specifications for fit and performance and is produced in an ISO 9002 certified facility.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are your shipping speed and cost?\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide. Typical transit time is 5–15 days for most regions. Standard shipping is free, and expedited options are available at checkout where applicable.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n    \u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal marine use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our policy page for full details.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify images and specifications against your original part before purchasing. If anything is different—even if your model is listed as compatible—do not complete the purchase.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement component, not an OEM part.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended for safety and optimal performance.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\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 rigorously tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — We offer free standard delivery to most regions with a typical transit time of 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — By working directly with manufacturers, we provide fair pricing without compromising on materials or quality control.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717908173115,"sku":"6R-A40V-YQX9","price":96.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/6R-A40V-YQX9.png?v=1762938149"},{"product_id":"hydrofoil-stabilizer-fits-outboard-motors-8-40-hp-replaces-fo2002","title":"Hydrofoil Stabilizer – Fits Outboard Motors 8-40 HP (Replaces FO2002)","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 compact \u003cstrong\u003eWhale Tail Hydrofoil Stabilizer\u003c\/strong\u003e is a performance-enhancing hydrofoil designed for small to mid-sized outboard motors and stern drives. It fits most outboards from 8–40 HP and can work with larger motors up to 300 HP, though some exceptions apply (notably certain Mercury 4-stroke models).\u003c\/p\u003e\n\u003cp\u003eThis part is a direct replacement for SeaSierra FO2002, UanofCn FO2002, and NorthBoat FO2002.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls via bolt-on mounting to the anti-ventilation plate (drilling is required).\u003c\/li\u003e\n\u003cli\u003eConstructed from durable, marine-grade reinforced PA66 nylon plastic.\u003c\/li\u003e\n\u003cli\u003eUV-resistant construction ensures a long service life in marine environments.\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\u003eSeaSierra\u003c\/td\u003e\n        \u003ctd\u003eFO2002\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eUanofCn\u003c\/td\u003e\n        \u003ctd\u003eFO2002\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eNorthBoat\u003c\/td\u003e\n        \u003ctd\u003eFO2002\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 all Mercury models from 8-40 HP, with the exception of 4-Stroke models in the 40, 50, and 60 HP range.\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\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eAll models\u003c\/td\u003e\n        \u003ctd\u003e8-40 HP\u003c\/td\u003e\n        \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003eAll models\u003c\/td\u003e\n        \u003ctd\u003e8-40 HP\u003c\/td\u003e\n        \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n        \u003ctd\u003eExcept 4-Stroke 40, 50, 60 HP\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n        \u003ctd\u003eAll models\u003c\/td\u003e\n        \u003ctd\u003e8-40 HP\u003c\/td\u003e\n        \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003eAll models\u003c\/td\u003e\n        \u003ctd\u003e8-40 HP\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSuzuki\u003c\/td\u003e\n        \u003ctd\u003eAll models\u003c\/td\u003e\n        \u003ctd\u003e8-40 HP\u003c\/td\u003e\n        \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eTohatsu\u003c\/td\u003e\n        \u003ctd\u003eAll models\u003c\/td\u003e\n        \u003ctd\u003e8-40 HP\u003c\/td\u003e\n        \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eVarious\u003c\/td\u003e\n        \u003ctd\u003eOther models\u003c\/td\u003e\n        \u003ctd\u003eUp to 300 HP\u003c\/td\u003e\n        \u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n        \u003ctd\u003eExcept Mercury 4-Stroke 40, 50, 60 HP\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\u003eWhale Tail Hydrofoil Stabilizer\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eBolt-on with included hardware (drilling required)\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eAnti-Ventilation Plate Mount\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMarine Grade Reinforced Nylon PA66 Plastic\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eAvailable in Blue, Red, Silver\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e13.5\" × 14.0\" (343 × 355 mm)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e3.24 lbs (1.47 kg)\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eDirect mount to anti-ventilation plate\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eUV-resistant construction\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Hydrofoil Stabilizer (FO2002)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e4 x Sets\u003c\/span\u003e of Stainless Steel Screws and Nuts\u003c\/li\u003e\n  \u003cli\u003e1 x 6.5mm Drill Bit\u003c\/li\u003e\n  \u003cli\u003e1 x Installation Instruction Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003ePosition the hydrofoil on the anti-ventilation plate, ensuring it is centered and does not interfere with the propeller's movement.\u003c\/li\u003e\n  \u003cli\u003eMark the positions for the four mounting holes using the hydrofoil as a template.\u003c\/li\u003e\n  \u003cli\u003eCarefully drill the four marked holes through the anti-ventilation plate using the included 6.5mm drill bit.\u003c\/li\u003e\n  \u003cli\u003eSecure the hydrofoil to the plate by inserting the stainless steel screws from the top and tightening the nuts from below. Ensure a firm, snug fit.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this fit my 50 HP Mercury 4-Stroke?\u003c\/summary\u003e\n  \u003cp\u003eNo, this hydrofoil is not compatible with Mercury 4-Stroke motors of 40, 50, or 60 HP. It fits most other outboards from 8-40 HP and can work on some larger engines up to 300 HP. Always verify compatibility before purchasing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this require drilling into my engine?\u003c\/summary\u003e\n  \u003cp\u003eYes, installation requires drilling four holes into the anti-ventilation plate of your outboard motor. All necessary mounting hardware, including a drill bit, is included in the package to complete the process.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat performance benefits can I expect?\u003c\/summary\u003e\n  \u003cp\u003eA properly installed hydrofoil helps your boat get on plane faster, which can improve fuel efficiency. It also reduces or eliminates porpoising and cavitation while enhancing overall stability and handling at cruising speeds.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I maintain the hydrofoil?\u003c\/summary\u003e\n  \u003cp\u003eThe hydrofoil is made of UV-resistant, marine-grade plastic and requires minimal maintenance. Periodically check that the mounting bolts are secure and rinse the unit with fresh water after use in saltwater environments to prevent corrosion of the hardware.\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). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, it is batch-inspected for consistency and quality.\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 is 5–15 days. Standard shipping is free; expedited options will 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\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal use. If any issues arise, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their 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 quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717908205883,"sku":"NB-20HS001 Silver","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/NB-20HS001Silver.png?v=1762947096"},{"product_id":"hydrofoil-stabilizer-fits-outboard-motors-stern-drives-5-150-hp-replaces-seasierra-19hs-uanofcn-fo2001-davis-doel-fin-440","title":"Hydrofoil Stabilizer – Fits Outboard Motors \u0026 Stern Drives 5-150 HP (Replaces SeaSierra 19HS, Uanofcn FO2001, Davis Doel-Fin 440)","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 universal \u003cstrong\u003eHydrofoil Stabilizer – Fits Outboard Motors \u0026amp; Stern Drives 5-150 HP (Dorsal Fin Style)\u003c\/strong\u003e is designed for 5-150 HP outboard motors and stern drives, and is suitable for most boats up to 200 HP. Its dorsal fin design enhances stability and performance on the water, reducing cavitation and porpoising for a smoother ride.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct cross-reference for SeaSierra 19HS, Uanofcn FO2001, and Davis Doel-Fin 440.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstalls via bolt-on method (drilling is required).\u003c\/li\u003e\n  \u003cli\u003eConstructed from durable, UV-resistant reinforced nylon plastic for marine environments.\u003c\/li\u003e\n  \u003cli\u003eIncludes a complete set of stainless steel mounting hardware.\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 brands.\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\u003eSeaSierra\u003c\/td\u003e\n        \u003ctd\u003e19HS\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eUanofcn\u003c\/td\u003e\n        \u003ctd\u003eFO2001\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eDavis\u003c\/td\u003e\n        \u003ctd\u003eDoel-Fin 440\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel Type\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eApplication\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\u003eAll Brands\u003c\/td\u003e\n        \u003ctd\u003eOutboard Motors\u003c\/td\u003e\n        \u003ctd\u003e5–150 HP\u003c\/td\u003e\n        \u003ctd\u003eUniversal fit\u003c\/td\u003e\n        \u003ctd\u003eNot compatible with Volvo Penta 280\/290 outdrives and BMW Outdrives for engines over 50HP\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAll Brands\u003c\/td\u003e\n        \u003ctd\u003eStern Drives\u003c\/td\u003e\n        \u003ctd\u003e5–150 HP\u003c\/td\u003e\n        \u003ctd\u003eUniversal fit\u003c\/td\u003e\n        \u003ctd\u003eCompatible with Volvo Penta 270 outdrive\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAll Brands\u003c\/td\u003e\n        \u003ctd\u003eOutboards\/Outdrives\u003c\/td\u003e\n        \u003ctd\u003eUp to 200 HP\u003c\/td\u003e\n        \u003ctd\u003eUniversal fit\u003c\/td\u003e\n        \u003ctd\u003ePerformance may vary based on boat configuration\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\u003eHydrofoil Stabilizer, Dorsal Fin Style\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eBolt-on (drilling required)\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eReinforced Nylon PA66 Plastic\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eH: 260 mm (10-1\/4 inches), W: 210 mm (8-1\/4 inches)\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eBolt-on with stainless steel hardware\u003c\/dd\u003e\n  \u003cdt\u003eCompatible HP Range\u003c\/dt\u003e\n\u003cdd\u003e5-150 HP (up to 200 HP)\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eUV-Resistant, Marine-grade construction\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Hydrofoil Stabilizer (Dorsal Fin Style)\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e4 x Stainless Steel Mounting Hardware Set (bolts, nuts)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e1 x Installation Guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eThis hydrofoil stabilizer requires drilling four holes into the anti-cavitation plate of your lower unit. Measure carefully before drilling to ensure proper alignment. All necessary stainless steel mounting hardware is included for a secure installation.\u003c\/p\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this hydrofoil will fit my specific engine?\u003c\/summary\u003e\n  \u003cp\u003eThis hydrofoil offers a universal fit for most outboard and stern drive engines from 5-150 HP. However, it is not compatible with Volvo Penta 280\/290 series and BMW outdrives on engines over 50 HP. Always measure your anti-cavitation plate and compare it with the product dimensions before purchasing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the main benefits of the dorsal fin style?\u003c\/summary\u003e\n  \u003cp\u003eThe dorsal fin provides additional stability and improved tracking, especially in turns. It helps reduce porpoising and cavitation, leading to a smoother ride, faster planing, and potentially better fuel economy.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs drilling into the anti-cavitation plate safe for my engine?\u003c\/summary\u003e\n  \u003cp\u003eYes, when performed correctly, it is a standard and safe procedure. The anti-cavitation plate is robust enough for this modification. Follow the included installation guide carefully to ensure you drill in the recommended locations.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat tools are needed for installation?\u003c\/summary\u003e\n  \u003cp\u003eYou will need a power drill, appropriate drill bits for metal, a wrench or socket set to tighten the mounting hardware, and a measuring tape to ensure correct placement.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow can I tell if the hydrofoil is working correctly?\u003c\/summary\u003e\n  \u003cp\u003eAfter installation, you should notice your boat gets on plane at lower speeds, experiences less bow rise, and maintains better stability at various speeds. Handling during turns should also feel more controlled.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan this hydrofoil be painted to match my engine?\u003c\/summary\u003e\n  \u003cp\u003eYes, the reinforced nylon material can be painted. For a durable finish, lightly sand the surface, apply a plastic adhesion promoter, and use a quality marine-grade paint.\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":50718241653051,"sku":"VG-ZO1F-9IYW","price":32.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/VG-ZO1F-9IYW.png?v=1762958065"},{"product_id":"hydrofoil-stabilizer-fits-outboard-sterndrive-motors-5-150-hp","title":"Hydrofoil Stabilizer – Fits Marine Outboard and Sterndrive Motors (PA66 Plastic)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eHydrofoil Stabilizer\u003c\/strong\u003e is a marine accessory designed for use on compatible outboard and sterndrive applications. Its reinforced PA66 plastic construction helps provide a durable hydrofoil surface for improving planing response, reducing porpoising, and supporting more stable handling when properly matched to the boat and engine.\u003c\/p\u003e\n\u003cp\u003eThe stabilizer is an aftermarket product with a bolt-on installation design. It is intended for applications using a suitable cavitation plate; verify the dimensions, shape, clearance, and mounting location of your engine before installation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for compatible marine outboard and sterndrive motors.\u003c\/li\u003e\n\u003cli\u003eMade from reinforced PA66 nylon plastic.\u003c\/li\u003e\n\u003cli\u003eBolt-on installation using drilled mounting holes.\u003c\/li\u003e\n\u003cli\u003eWhite finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis stabilizer is intended for compatible marine outboard and sterndrive applications. Compatibility cannot be confirmed from horsepower alone. Before ordering, compare the stabilizer with your engine's cavitation plate, including its available mounting area, shape, dimensions, clearance, and ability to accept drilled mounting holes.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and model compatibility guidance\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eApplication\u003c\/th\u003e\n        \u003cth\u003eCompatibility Guidance\u003c\/th\u003e\n        \u003cth\u003eWhat to Verify\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMarine outboard motors\u003c\/td\u003e\n        \u003ctd\u003eSuitable only where the cavitation plate matches the stabilizer's mounting area and clearance requirements.\u003c\/td\u003e\n        \u003ctd\u003ePlate dimensions, shape, thickness, clearance, and drilling access.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSterndrive motors\u003c\/td\u003e\n        \u003ctd\u003eSuitable only for compatible sterndrive or outdrive configurations.\u003c\/td\u003e\n        \u003ctd\u003eAvailable mounting surface, surrounding hardware, and interference with the drive unit.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSpecific brands and models\u003c\/td\u003e\n        \u003ctd\u003eNo complete model-, year-, serial-number-, or horsepower-specific fitment list is verified for this product.\u003c\/td\u003e\n        \u003ctd\u003eCompare your engine and cavitation plate directly before purchase.\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\u003eHydrofoil Stabilizer\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eCompatible marine outboard and sterndrive motors\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eBolt-on installation requiring drilled mounting holes\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n  \u003cdd\u003eReinforced PA66 nylon plastic\u003c\/dd\u003e\n  \u003cdt\u003eColor\u003c\/dt\u003e\n  \u003cdd\u003eWhite\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n  \u003cdd\u003eApproximately 14 inches wide × 13.5 inches high; confirm the actual mounting area and clearance before installation.\u003c\/dd\u003e\n  \u003cdt\u003eOperating Environment\u003c\/dt\u003e\n  \u003cdd\u003eMarine applications, including freshwater and saltwater use\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × White PA66 hydrofoil stabilizer\u003c\/li\u003e\n  \u003cli\u003eMounting hardware, where included with the selected package\u003c\/li\u003e\n  \u003cli\u003eDrill bit and installation instructions, where included with the selected package\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eReview the product dimensions and compare them with the engine's cavitation plate before drilling.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the battery and follow the engine and boat manufacturer's safety procedures.\u003c\/li\u003e\n  \u003cli\u003ePosition the stabilizer on the cavitation plate, ensuring it is centered, level, and clear of surrounding components.\u003c\/li\u003e\n  \u003cli\u003eUse the mounting holes as a guide to mark the drilling locations.\u003c\/li\u003e\n  \u003cli\u003eRemove the stabilizer and carefully drill the marked holes using the appropriate drill size for the supplied hardware.\u003c\/li\u003e\n  \u003cli\u003eReposition the stabilizer and align the mounting holes.\u003c\/li\u003e\n  \u003cli\u003eInstall the mounting hardware and tighten it securely without overtightening or deforming the cavitation plate.\u003c\/li\u003e\n  \u003cli\u003eInspect the installation before launching. Test the boat at low speed first and confirm that the stabilizer remains secure and does not interfere with steering or the drive unit.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this fit my specific engine?\u003c\/summary\u003e\n  \u003cp\u003eFitment depends on the cavitation plate and surrounding clearance, not horsepower alone. Compare the stabilizer's approximate dimensions and mounting layout with your engine before purchase. A complete model-, year-, or serial-number-specific fitment list is not verified for this product.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat performance benefit should I expect?\u003c\/summary\u003e\n  \u003cp\u003eA properly matched hydrofoil may help the boat plane more readily, reduce porpoising, and improve stability. Results vary with the hull, engine setup, loading, propeller, speed, and water conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes installation require drilling?\u003c\/summary\u003e\n  \u003cp\u003eYes. This is a bolt-on stabilizer that is installed by drilling mounting holes in a suitable cavitation plate. Confirm that drilling is acceptable for your engine and follow safe installation procedures.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan it be installed on any outboard or sterndrive motor?\u003c\/summary\u003e\n  \u003cp\u003eNo universal fitment should be assumed. Check the cavitation plate's size, shape, thickness, available clearance, and mounting access before installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n  \u003cp\u003eNo. This is an aftermarket hydrofoil stabilizer made from reinforced PA66 nylon plastic.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow should the stabilizer be maintained?\u003c\/summary\u003e\n  \u003cp\u003eRinse the stabilizer and mounting hardware with fresh water after saltwater use. Check the hardware periodically for looseness, corrosion, cracking, or other damage, and do not operate the boat if the stabilizer is loose or damaged.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify fitment against your actual engine and cavitation plate before drilling or ordering.\u003c\/li\u003e\n  \u003cli\u003eDo not install the stabilizer if it interferes with steering, trim, propulsion, or other drive components.\u003c\/li\u003e\n  \u003cli\u003eUse appropriate eye protection and safe drilling practices during installation.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended if you are unsure about drilling, clearance, or engine compatibility.\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-Focused Products\u003c\/strong\u003e — We offer aftermarket marine accessories for practical repair, replacement, and upgrade applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Information\u003c\/strong\u003e — Check the product details and physical fitment requirements before installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport\u003c\/strong\u003e — Contact customer support if you need help comparing the product with your engine's mounting area.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718271177019,"sku":"HS001-White-QM","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/HS001-White-QM.png?v=1762958735"},{"product_id":"whale-tail-hydrofoil-stabilizer-fits-outboard-motors-8-40-hp-replaces-fo2002-fo002","title":"Whale Tail Hydrofoil Stabilizer for Outboard Motors 8–40 HP — Replaces FO2002 and FO002","description":"\u003csection\u003e\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\u003eThe SeaSierra \u003cstrong\u003eWhale Tail Hydrofoil Stabilizer\u003c\/strong\u003e is a marine-grade hydrofoil designed to improve planing performance, handling, and stability. It fits most outboard motors and stern drives from 8 to 40 HP and is suitable for many 2-Stroke and 4-Stroke applications. It may also fit many larger outboards and stern drives, except Mercury 4-Stroke 40 HP, 50 HP, and 60 HP models.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket hydrofoil is listed as a replacement for SeaSierra reference numbers \u003cstrong\u003eFO2002\u003c\/strong\u003e and \u003cstrong\u003eFO002\u003c\/strong\u003e. Always compare your anti-cavitation plate and engine application with the product dimensions before installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMounts directly to the anti-cavitation plate using the included hardware.\u003c\/li\u003e\n  \u003cli\u003eConstructed from durable marine-grade Nylon PA66 plastic.\u003c\/li\u003e\n  \u003cli\u003eIncludes stainless steel mounting hardware and a 6.5 mm drill bit.\u003c\/li\u003e\n  \u003cli\u003eDrilling is required for installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReference Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following aftermarket reference numbers when comparing replacement applications.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Reference Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eReference Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaSierra\u003c\/td\u003e\n        \u003ctd\u003eFO2002\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaSierra\u003c\/td\u003e\n        \u003ctd\u003eFO002\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\u003eCompatibility depends on the shape and available mounting area of the anti-cavitation plate. Confirm your engine application and measure the mounting area before ordering.\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\u003eApplication\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eReference Number\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMost small outboards and compatible stern drives\u003c\/td\u003e\n        \u003ctd\u003e8–40 HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n        \u003ctd\u003eFO2002\u003c\/td\u003e\n        \u003ctd\u003eVerify anti-cavitation plate dimensions and mounting clearance.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMany compatible outboards and stern drives above 40 HP\u003c\/td\u003e\n        \u003ctd\u003eAbove 40 HP\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n        \u003ctd\u003eFO2002\u003c\/td\u003e\n        \u003ctd\u003eExcludes Mercury 4-Stroke 40 HP, 50 HP, and 60 HP models.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eHydrofoil stabilizer\u003c\/dd\u003e\n  \u003cdt\u003eInstallation Location\u003c\/dt\u003e\n  \u003cdd\u003eOutboard or stern-drive anti-cavitation plate\u003c\/dd\u003e\n  \u003cdt\u003eMounting Method\u003c\/dt\u003e\n  \u003cdd\u003eDirect mount with drilling and included hardware\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n  \u003cdd\u003eMarine-grade Nylon PA66 plastic\u003c\/dd\u003e\n  \u003cdt\u003eColor\u003c\/dt\u003e\n  \u003cdd\u003eBlue or silver finish, depending on selected option\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n  \u003cdd\u003eHeight: 13.39 inches (340 mm) × Width: 13.7 inches (348 mm)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n  \u003cdd\u003e2.94 lb (1.33 kg)\u003c\/dd\u003e\n  \u003cdt\u003eDrill Bit Size\u003c\/dt\u003e\n  \u003cdd\u003e6.5 mm\u003c\/dd\u003e\n  \u003cdt\u003eDesign\u003c\/dt\u003e\n  \u003cdd\u003eCrescent-shaped hydrofoil surface designed to channel water efficiently\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Hydrofoil stabilizer\u003c\/li\u003e\n  \u003cli\u003e4 × Sets of stainless steel screws and nuts\u003c\/li\u003e\n  \u003cli\u003e1 × 6.5 mm drill bit\u003c\/li\u003e\n  \u003cli\u003e1 × Installation instruction\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the engine battery or power source before beginning installation.\u003c\/li\u003e\n  \u003cli\u003eCenter the hydrofoil on the anti-cavitation plate of the outboard or stern drive.\u003c\/li\u003e\n  \u003cli\u003eUse a pencil or marker to mark the four mounting-hole positions.\u003c\/li\u003e\n  \u003cli\u003eCarefully drill the marked holes with the included 6.5 mm drill bit.\u003c\/li\u003e\n  \u003cli\u003ePosition the hydrofoil and secure it with the included stainless steel screws and nuts.\u003c\/li\u003e\n  \u003cli\u003eTighten the hardware evenly and firmly. Do not overtighten, as this may damage the plate or hardware.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery or power source and perform a controlled water test.\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 hydrofoil will fit my motor?\u003c\/summary\u003e\u003cp\u003eThis hydrofoil is intended for most compatible outboard and stern-drive applications from 8 to 40 HP and many applications above 40 HP. Mercury 4-Stroke 40 HP, 50 HP, and 60 HP models are excluded. Before ordering, measure the anti-cavitation plate and compare the available mounting area with the hydrofoil dimensions of 13.39 × 13.7 inches.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the benefits of installing a hydrofoil?\u003c\/summary\u003e\u003cp\u003eA properly fitted hydrofoil can help a boat get on plane faster, reduce porpoising, improve handling and stability, and provide additional hydrodynamic lift at the stern during operation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs drilling required for installation?\u003c\/summary\u003e\u003cp\u003eYes. Installation requires four holes to be drilled into the anti-cavitation plate. A 6.5 mm drill bit and stainless steel mounting hardware are included.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between the blue and silver color options?\u003c\/summary\u003e\u003cp\u003eThe color is cosmetic. Both options use marine-grade Nylon PA66 plastic and are intended for the same type of application.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement hydrofoil. It is listed as a replacement for reference numbers FO2002 and FO002; it is not represented as an original equipment manufacturer component.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow long does shipping take?\u003c\/summary\u003e\u003cp\u003eTypical transit is 5–15 days. Standard shipping is free, and expedited options may be shown at checkout where available.\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 use. Returns are accepted within the applicable standard return window when the item is unused and in its original condition. Contact support for current policy details and return instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm the engine application, anti-cavitation plate dimensions, and mounting clearance before ordering.\u003c\/li\u003e\n  \u003cli\u003eDo not install the hydrofoil on excluded Mercury 4-Stroke 40 HP, 50 HP, or 60 HP models.\u003c\/li\u003e\n  \u003cli\u003eInspect all hardware after installation and before the first use.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended if you are not experienced with drilling and marine hardware installation.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout SeaSierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts designed for demanding real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery is available to most regions, with typical transit of 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing with attention to materials and quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718271340859,"sku":"SS-20HS001-S","price":63.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/SS-20HS001-S.png?v=1762958742"}],"url":"https:\/\/seasierra.com\/collections\/universal-4-stroke-35hp-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}