{"product_id":"hydrofoil-stabilizer-fits-outboard-stern-drives-40-300-hp-replaces-suprememarine-fo2003-uanofcn-fo2003-jdsnaey-sport-300-fo2003-northboat-fo2003","title":"Hydrofoil Stabilizer – Fits Outboard \u0026 Stern Drives 40-300 HP (Replaces SupremeMarine FO2003, UANOFCN FO2003, JDSNAEY Sport 300 FO2003, NorthBoat FO2003)","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 universal \u003cstrong\u003eMarine Whale Tail Hydrofoil Stabilizer\u003c\/strong\u003e is designed to improve boat performance on most outboard and stern drive motors from 40 HP to 300 HP. The whale tail design helps get the boat on plane faster, reduces porpoising and cavitation, and enhances overall stability for a smoother ride.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct aftermarket replacement for several part numbers, including SupremeMarine FO2003, UANOFCN FO2003, and JDSNAEY Sport 300 FO2003, offering a versatile fit for a wide range of engines.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls via a simple bolt-on process to the anti-cavitation plate.\u003c\/li\u003e\n\u003cli\u003eConstructed from durable, marine-grade reinforced Nylon-PA66 plastic to withstand harsh marine environments.\u003c\/li\u003e\n\u003cli\u003eThe complete kit includes all necessary mounting hardware and a drill bit for straightforward installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupremeMarine\u003c\/td\u003e\n\u003ctd\u003eFO2003\u003c\/td\u003e\n\u003ctd\u003eAftermarket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUANOFCN\u003c\/td\u003e\n\u003ctd\u003eFO2003\u003c\/td\u003e\n\u003ctd\u003eAftermarket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJDSNAEY\u003c\/td\u003e\n\u003ctd\u003eSport 300 FO2003\u003c\/td\u003e\n\u003ctd\u003eAftermarket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNorthBoat\u003c\/td\u003e\n\u003ctd\u003eFO2003\u003c\/td\u003e\n\u003ctd\u003eAftermarket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAll Brands\u003c\/td\u003e\n\u003ctd\u003eOutboard Motors\u003c\/td\u003e\n\u003ctd\u003e40-300 HP\u003c\/td\u003e\n\u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eFO2003\u003c\/td\u003e\n\u003ctd\u003eUniversal fit\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\u003e40-300 HP\u003c\/td\u003e\n\u003ctd\u003e2- \u0026amp; 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eFO2003\u003c\/td\u003e\n\u003ctd\u003eUniversal fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolvo\u003c\/td\u003e\n\u003ctd\u003eSX-A, DPS, DPR, DPH series\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eConfirmed compatible\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 (Whale Tail Style)\u003c\/dd\u003e\n\u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eBolt-on to anti-cavitation plate\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\u003eBlue\u003c\/dd\u003e\n\u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e16.93 × 14.17 inches (430 × 360 mm)\u003c\/dd\u003e\n\u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e1.54 kg (3.4 lbs)\u003c\/dd\u003e\n\u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eBolt-on\u003c\/dd\u003e\n\u003cdt\u003eOther Attributes\u003c\/dt\u003e\n\u003cdd\u003eStreamlined design to reduce drag; Control tips to improve thrust\u003c\/dd\u003e\n\u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1-Year\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 (FO2003)\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e4 x Sets of Screws and Nuts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e1 x Installation Instruction\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e1 x Drill bit (for installation)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eFor safety, disconnect the boat's battery before beginning installation.\u003c\/li\u003e\n\u003cli\u003ePosition the hydrofoil onto the engine's anti-cavitation plate, ensuring it is perfectly centered.\u003c\/li\u003e\n\u003cli\u003eUse a marker to indicate the drilling locations through the mounting holes of the hydrofoil.\u003c\/li\u003e\n\u003cli\u003eCarefully remove the hydrofoil and drill the marked holes using the included drill bit.\u003c\/li\u003e\n\u003cli\u003eReposition the hydrofoil, aligning it with the newly drilled holes.\u003c\/li\u003e\n\u003cli\u003eInsert the bolts from the top and secure them with the corresponding nuts from below. Tighten firmly but do not overtighten, as this can damage the plate or hydrofoil.\u003c\/li\u003e\n\u003cli\u003eOnce installation is complete, reconnect the battery and conduct a water test at low speeds to check for proper performance and handling.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if this hydrofoil will fit my specific engine model?\u003c\/summary\u003e\n\u003cp\u003eThis hydrofoil is designed for universal fitment on most outboard and stern drive motors in the 40-300 HP range. The key is to check the size of your engine's anti-cavitation plate and ensure there is enough flat surface area to mount the hydrofoil, which measures 16.93 x 14.17 inches.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the main benefit of a \"whale tail\" style hydrofoil?\u003c\/summary\u003e\n\u003cp\u003eThe \"whale tail\" design offers a large surface area that provides significant stern lift. This helps the boat get on plane much faster (improving the \"holeshot\"), allows it to stay on plane at lower speeds, increases fuel efficiency, and reduces common issues like porpoising and cavitation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow can I prevent the mounting hardware from loosening over time?\u003c\/summary\u003e\n\u003cp\u003eWe recommend using a thread-locking compound on the bolt threads during installation. Additionally, it is good practice to periodically check the tightness of the nuts and bolts as part of your regular boat maintenance routine.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are the signs that my hydrofoil is installed incorrectly?\u003c\/summary\u003e\n\u003cp\u003eIf the boat pulls to one side, experiences unusual vibrations, or if the engine seems to over-rev without generating thrust (ventilation), the hydrofoil may be misaligned. Ensure it is mounted perfectly centered on the anti-cavitation plate and is parallel to the bottom of the boat.\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":50717913710907,"sku":"3B-S2QB-06CJ","price":53.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/3B-S2QB-06CJ.png?v=1762938296","url":"https:\/\/seasierra.com\/products\/hydrofoil-stabilizer-fits-outboard-stern-drives-40-300-hp-replaces-suprememarine-fo2003-uanofcn-fo2003-jdsnaey-sport-300-fo2003-northboat-fo2003","provider":"SeaSierra","version":"1.0","type":"link"}