{"title":"Sea Sierra 40HP 2-Stroke Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px;\"\u003e\n  \u003cp\u003eThis page is for Sea Sierra 2-Stroke 40HP outboard engines. It helps you find compatible parts and service information, including maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse brand collections like \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-outboard-parts\"\u003eYamaha\u003c\/a\u003e, \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury\u003c\/a\u003e, \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-outboard-parts\"\u003eJohnson\/Evinrude\u003c\/a\u003e, \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-outboard-parts\"\u003eSuzuki\u003c\/a\u003e, \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\"\u003eHonda\u003c\/a\u003e, \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\"\u003eTohatsu\u003c\/a\u003e, and \u003ca href=\"https:\/\/seasierra.com\/collections\/force-outboard-parts\"\u003eForce\u003c\/a\u003e. Scroll to the bottom of this page to start browsing parts for this engine. On the collection pages, use the “Filter \u0026amp; Sort” controls to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/popular\" style=\"display:inline-block;padding:10px 14px;border:1px solid #0a6;border-radius:6px;text-decoration:none;\"\u003eBrowse All Sea Sierra Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 40HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the nameplate\/serial plate on the transom bracket or swivel bracket. Take a clear photo before ordering.\u003c\/li\u003e\n    \u003cli\u003eDecode the model string: base model + suffixes for shaft length (S\/L\/XL), control type (tiller\/remote), and year\/region. The exact code ensures parts compatibility.\u003c\/li\u003e\n    \u003cli\u003eConfirm it’s a 2‑stroke: look for an oil‑injection tank\/pump and oil lines, or confirm premix operation (owner‑set fuel\/oil ratio).\u003c\/li\u003e\n    \u003cli\u003eNote other identifiers that affect parts: charging output (manual\/electric start), gear ratio, and propeller hub style.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\" style=\"padding:16px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003e40HP 2‑Stroke Outboard (Typical Small Inline Configuration)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eInline 2–3 cylinder, carbureted 2‑stroke with either oil injection or premix (varies by brand\/year).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eGeneric 40HP 2‑stroke platforms across major brands; always match by exact model code and serial for parts.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eLight weight, quick throttle response, and straightforward maintenance.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eUse the correct fuel\/oil ratio if premix. On oil‑injected variants, verify pump operation and line integrity. Impeller and spark plugs are routine service items.\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=\"padding:16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines. Always follow the service schedule and specifications in your official owner’s\/service manual for your exact 40HP model and operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eInspect for water or metal. Pressure\/vacuum test if contamination is found; replace seals as needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\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:6px 8px;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eCheck gap and insulator color; replace if fouled, worn, or after hard‑starting issues.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\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:6px 8px;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003e100 hours or seasonally\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eReplace in‑line and\/or under‑cowl elements; drain or replace the water‑separating canister.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\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:6px 8px;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003e2–3 seasons or ~200 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eReplace sooner after sand\/silt ingestion or if the tell‑tale weakens.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\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:6px 8px;\"\u003eAnodes (sacrificial)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eInspect every 50 hours; replace at ~50% wear\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eChoose zinc (salt), aluminum (brackish\/salt), or magnesium (fresh) to match your water type.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\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:6px 8px;\"\u003e2‑Stroke oiling (premix or oil injection)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eEach outing (premix) \/ annually (injection system)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eVerify the correct fuel\/oil ratio (e.g., 50:1) for premix, or service the oil pump and lines; check for air leaks.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/hoses\"\u003eHoses\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=\"padding:16px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\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\u003eLower Unit Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/lower-unit-seal-kits\"\u003eLower Unit Seal Kits\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\u003eIgnition \u0026amp; Tune‑Up: \u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark plugs\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eHoses \u0026amp; Lines: \u003ca href=\"https:\/\/seasierra.com\/collections\/hoses\"\u003eHoses\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e and \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=\"padding:16px;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;max-width:900px;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eInspect intake screens for debris; confirm impeller age; verify thermostat function.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eWater pump kit, thermostat, intake screen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eCheck fuel filter restriction, primer bulb condition, and propeller for damage or hub slip.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eFuel filter, fuel pump, propeller\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eConfirm fresh fuel, correct choke\/prime; inspect spark plug gap and condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eSpark plugs, fuel filter, hoses\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eExcessive smoke (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eVerify the fuel\/oil mix ratio or adjust oil‑injection setting; check for wet‑fouled plugs.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eSpark plugs, oil lines\/hoses\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eDrain and inspect gear lube; test for water intrusion; pressure\/vacuum test seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px 8px;\"\u003eLower unit seal kit, bearings\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=\"padding:16px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eNot always. 2‑stroke 40HP models vary by brand, year, and configuration (premix vs. oil‑injected, ignition type, anodes, cooling components). Match by model code\/serial to ensure fit.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eTypically every 2–3 seasons or ~200 hours. Replace sooner if you run in sandy\/silty water, the tell‑tale weakens, or after any overheat.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change the lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eAt least annually or every 100 hours. If you find water, metal, or burnt odor, address seals or gears immediately and refresh the oil.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the full model code, serial number, shaft length (S\/L\/XL), control type (tiller\/remote), and whether it’s premix or oil‑injected. Photos of the nameplate and the part help us verify fitment.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px;\"\u003e\n  \u003cp\u003eReady to find parts by brand, horsepower, year, and model? Start with our brand collections and filter down to your exact 40HP outboard.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/popular\" style=\"display:inline-block;padding:10px 14px;border:1px solid #0a6;border-radius:6px;text-decoration:none;\"\u003eBrowse Brand Collections\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px;color:#555;\"\u003eIf you’re unsure about your model, send us a photo of the nameplate and the part you need and we’ll help verify compatibility.\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"hydrofoil-stabilizer-fits-outboard-motors-5-150-hp-replaces-seasierra-fo2001-quickmarine-hs001","title":"Hydrofoil Stabilizer for Outboard Motors, 5–150 HP – Aftermarket Replacement for FO2001 and HS001","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td { padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top; }\n  table.ss-table th { white-space:nowrap; word-break:normal; letter-spacing:normal; font-weight:600; background:#f8fafc; }\n  @media (max-width:480px){ table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; } }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eHydrofoil Stabilizer\u003c\/strong\u003e is a wing-shaped planing aid designed to mount on the anti-ventilation plate of compatible outboard motors and stern drives rated from 5 to 150 HP. It helps the boat plane faster, reduces bow rise, improves low-speed stability and handling, and may improve fuel efficiency depending on the boat, engine, load, trim and operating conditions. It is suitable for use with compatible 2-stroke and 4-stroke outboard applications.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket hydrofoil is listed as a replacement reference for \u003cstrong\u003eFO2001\u003c\/strong\u003e and \u003cstrong\u003eHS001\u003c\/strong\u003e numbers used by various aftermarket sellers, including SeaSierra, QuickMarine, UanofCn, Xingrong and NorthBoat. These references are not OEM manufacturer part numbers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMounts to the anti-ventilation plate with the supplied bolt-on hardware.\u003c\/li\u003e\n  \u003cli\u003eMade from marine-grade, UV-resistant reinforced nylon PA66 plastic for use in freshwater and saltwater environments.\u003c\/li\u003e\n  \u003cli\u003eDorsal-fin-style design provides an enlarged wing surface for added stern lift and stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse the following aftermarket references when comparing replacement products. Confirm the hydrofoil dimensions, mounting-hole pattern and included hardware before installation.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Aftermarket Part Number Matrix\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand or Seller Reference\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSeaSierra\u003c\/td\u003e\n\u003ctd\u003eFO2001\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eQuickMarine\u003c\/td\u003e\n\u003ctd\u003eHS001\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\u003eXingrong\u003c\/td\u003e\n\u003ctd\u003eHS001\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eNorthBoat\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 and Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis is a general-fit aftermarket hydrofoil intended for compatible outboard motors and stern drives rated between 5 and 150 HP. Because anti-ventilation-plate dimensions and mounting arrangements vary, verify the available plate area, clearance around the propeller and the installation requirements for your specific engine before purchase.\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\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eApplication\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\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eCompatible outboards\u003c\/td\u003e\n\u003ctd\u003e5–150\u003c\/td\u003e\n\u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eAftermarket application; verify plate dimensions and clearance.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eCompatible outboards\u003c\/td\u003e\n\u003ctd\u003e5–150\u003c\/td\u003e\n\u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eAftermarket application; verify plate dimensions and clearance.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCompatible outboards\u003c\/td\u003e\n\u003ctd\u003e5–150\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eAftermarket application; verify plate dimensions and clearance.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSuzuki\u003c\/td\u003e\n\u003ctd\u003eCompatible outboards\u003c\/td\u003e\n\u003ctd\u003e5–150\u003c\/td\u003e\n\u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eAftermarket application; verify plate dimensions and clearance.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eCompatible outboards\u003c\/td\u003e\n\u003ctd\u003e5–150\u003c\/td\u003e\n\u003ctd\u003e2-Stroke and 4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eAftermarket application; verify plate dimensions and clearance.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eJohnson\u003c\/td\u003e\n\u003ctd\u003eCompatible outboards\u003c\/td\u003e\n\u003ctd\u003e5–150\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eAftermarket application; verify plate dimensions and clearance.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEvinrude\u003c\/td\u003e\n\u003ctd\u003eCompatible outboards\u003c\/td\u003e\n\u003ctd\u003e5–150\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eAftermarket application; verify plate dimensions and clearance.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMerCruiser\u003c\/td\u003e\n\u003ctd\u003eCompatible stern drives\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eVerify anti-ventilation-plate suitability before installation.\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003eCompatible stern drives\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eVerify anti-ventilation-plate suitability before installation.\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 \/ planing aid\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eMounts to the anti-ventilation plate with supplied hardware\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eNot applicable; external engine accessory\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eBolt-on installation with supplied 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\u003eYellow, black, blue, gray or white; color availability may vary\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e10-1\/4 in × 8-1\/4 in (260.4 mm × 209.6 mm)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e2.41 lb (1.09 kg)\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eGeneral fit for compatible outboard motors and stern drives\u003c\/dd\u003e\n  \u003cdt\u003eThread Size\u003c\/dt\u003e\n\u003cdd\u003eNot specified; stainless steel mounting hardware is supplied\u003c\/dd\u003e\n  \u003cdt\u003eDesign\u003c\/dt\u003e\n\u003cdd\u003eDorsal-fin style with enlarged wing surface\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 instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the engine battery and make sure the engine is tilted up and secured safely.\u003c\/li\u003e\n  \u003cli\u003ePosition the hydrofoil on the anti-ventilation plate. Center it and confirm that it will not interfere with propeller movement or steering components.\u003c\/li\u003e\n  \u003cli\u003eMark the drilling locations through the hydrofoil's mounting holes.\u003c\/li\u003e\n  \u003cli\u003eRemove the hydrofoil and carefully drill the marked holes using the supplied 6.5 mm drill bit, if appropriate for the plate and installation.\u003c\/li\u003e\n  \u003cli\u003ePlace the hydrofoil back on the plate and align the holes.\u003c\/li\u003e\n  \u003cli\u003eInsert the stainless steel screws from the top and secure them with the nuts from below. Tighten firmly without over-torquing or deforming the plate.\u003c\/li\u003e\n  \u003cli\u003eCheck that all hardware is tight and that the hydrofoil is securely attached.\u003c\/li\u003e\n  \u003cli\u003eTest the boat at low speed before full-speed operation. Check handling, vibration, clearance and hardware tightness.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm that this hydrofoil fits my specific outboard motor?\u003c\/summary\u003e\u003cp\u003eCheck that your anti-ventilation plate is large enough for the 10-1\/4 in × 8-1\/4 in hydrofoil and that the installation area provides adequate propeller, steering and trim clearance. Horsepower range alone does not guarantee fitment. Compare the product dimensions and mounting arrangement with your engine before drilling.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the advantage of the dorsal-fin-style design?\u003c\/summary\u003e\u003cp\u003eThe fin and wing shape provide additional planing surface and stern lift. This can improve low-speed stability, reduce bow rise and help the boat reach a stable planing attitude more quickly. Results vary with hull design, engine setup, load and trim.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhy is my boat slower after installation?\u003c\/summary\u003e\u003cp\u003eA hydrofoil can increase drag in some installations. Recheck that the hydrofoil is centered, secure and correctly aligned with the anti-ventilation plate. Confirm that it does not contact or obstruct the propeller and that the engine trim is appropriate. If handling or vibration is abnormal, stop operating the boat and inspect the installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I install it myself?\u003c\/summary\u003e\u003cp\u003eInstallation can be completed by a person with suitable mechanical skills and tools, but it requires drilling the anti-ventilation plate. If you are not confident about drilling, alignment, clearance or fastening, have the work completed or inspected by a qualified marine technician.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs that the hydrofoil needs replacement?\u003c\/summary\u003e\u003cp\u003eInspect it regularly for cracks, warping, impact damage, loose fasteners or abnormal vibration. Replace the hydrofoil if it is damaged or cannot be secured firmly. Inspect the mounting plate and hardware at the same time.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill it prevent porpoising?\u003c\/summary\u003e\u003cp\u003eA hydrofoil may reduce porpoising by adding stern lift and helping the boat maintain a more consistent planing attitude, but it cannot guarantee elimination of porpoising. Correct weight distribution, engine trim and hull setup also affect the result.\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. FO2001 and HS001 are aftermarket reference numbers associated with comparable products; they should be used for comparison only, not as a claim of original-equipment manufacture.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the shipping and delivery details?\u003c\/summary\u003e\u003cp\u003eShipping methods, delivery estimates and cost are shown at checkout and may vary by destination and service selected.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\u003cp\u003eWarranty coverage and return eligibility are governed by the seller's current policies. Contact customer support with your order details before returning or modifying a product if you experience a problem.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the hydrofoil dimensions, plate size, mounting clearance and propeller clearance for your engine before drilling or purchasing.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eInspect all fasteners before each use, especially after the first water test and after any impact.\u003c\/li\u003e\n  \u003cli\u003eStop operation immediately if you notice vibration, looseness, cracking, steering changes or contact with the propeller.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when drilling or marine hardware installation is outside your experience.\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 selected for practical fitment and real-world use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGlobal Fulfillment\u003c\/strong\u003e — Available shipping options and delivery estimates are shown during checkout.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — We aim to provide practical replacement parts at competitive prices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50718256726331,"sku":"SS-19HS001-Y","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/SS-19HS001-Y.png?v=1762958184"}],"url":"https:\/\/seasierra.com\/collections\/sea-sierra-40hp-2-stroke-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}