{"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","url":"https:\/\/seasierra.com\/products\/hydrofoil-stabilizer-fits-outboard-motors-stern-drives-5-150-hp-replaces-seasierra-19hs-uanofcn-fo2001","provider":"SeaSierra","version":"1.0","type":"link"}