{"title":"Honda Marine 4-Stroke EFI Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px 0;\"\u003e\n  \u003cp style=\"max-width:900px;\"\u003e\n    This page is for Honda Marine 4‑Stroke EFI outboard engines. It helps you find compatible parts and service information, including maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Honda collection. Scroll to the bottom of this page to start browsing parts for this engine, and remember that on the collection page you can use the \"Filter \u0026amp; Sort\" controls to narrow results by horsepower, year range, and part category.\n  \u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\" style=\"display:inline-block;padding:10px 14px;border:1px solid #1b4; border-radius:6px; text-decoration:none;\"\u003eBrowse All Honda Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eHow to Identify Your Honda 4‑Stroke EFI Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate location: Find the model\/serial plate on the transom bracket (often starboard side) or the swivel bracket. Record the full model code and serial.\u003c\/li\u003e\n    \u003cli\u003eRead the model code and suffix: Examples include BF25\/30, BF40\/50, BF60, BF75\/90\/100, BF115\/140\/150, BF200\/225\/250, and BF350. Suffix letters typically indicate shaft length (S\/L\/X), tiller vs. remote control, and series revisions.\u003c\/li\u003e\n    \u003cli\u003ePlatform clues: Mid‑range engines are commonly inline‑3\/inline‑4; higher power models include inline‑4 and V6; BF350 is a V8. Many 115–350 hp models support iST electronic controls.\u003c\/li\u003e\n    \u003cli\u003eConfirm year\/fitment: Always verify by full model code and serial number—certain water pump kits, prop hubs, anodes, and rigging parts vary by gearcase ratio and control system.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3 style=\"margin-top:12px;\"\u003eMid‑Range Series (25–100 hp)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:980px;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 #f0f0f0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInline‑3 and inline‑4 EFI 4‑stroke platforms\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eBF25\/30, BF40\/50, BF60, BF75\/90\/100\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eSmooth running, good mid‑range torque, and strong fuel economy\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWater pump kits, anodes, and propellers vary by gearcase; confirm model suffix and serial for exact fit\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3 style=\"margin-top:24px;\"\u003eHigh Power Series (115–250 hp)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:980px;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 #f0f0f0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInline‑4 (115\/140\/150) and V6 (200\/225\/250) EFI 4‑stroke platforms; many support iST electronic controls\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eBF115\/140\/150; BF200\/225\/250\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eRefined NVH, broad propeller options, and strong overall performance\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eRigging parts differ between mechanical and iST control systems; verify gearcase ratio and prop hub style before ordering\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3 style=\"margin-top:24px;\"\u003eBF350 V8\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;max-width:980px;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 #f0f0f0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eV8 EFI 4‑stroke with advanced control integration\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eBF350\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eHigh output with class‑competitive fuel economy\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eModel‑specific rigging and propeller hub kits—confirm control system components before purchase\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 0;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp style=\"max-width:900px;\"\u003eIntervals below are general guidelines for Honda 4‑Stroke EFI outboards. Always follow the official service manual for your exact model and operating conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;max-width:980px;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 #f0f0f0;\"\u003eEngine oil + filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eFirst 20 hours, then every 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eUse marine‑grade FC‑W oil; replace crush washer where applicable\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect for water intrusion (milky oil) and metal; address seals if leakage is found\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/honda-lower-unit-seal-kits\"\u003eHonda Lower 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 #f0f0f0;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect every 100 hours; replace 200–300 hours or as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eGap and type vary by model; replace sooner with extended trolling or fouling\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eEvery 100 hours or each season\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eService more often with ethanol fuel or contamination\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eEvery 2–3 seasons or 200–300 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eReplace sooner if tell‑tale weakens, overheating occurs, or you run in sand\/silt\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/honda-water-pump-repair-kits\"\u003eHonda Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAnodes (sacrificial)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect monthly; replace when ~50% consumed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eChoose the correct alloy for fresh, brackish, or saltwater\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\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 0;\"\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\/honda-water-pump-repair-kits\"\u003eHonda Water Pump Repair 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\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical – \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion – \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase \u0026amp; Seals – \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-lower-unit-seal-kits\"\u003eHonda Lower Unit Seal Kits\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  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:16px 0;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;max-width:980px;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 #f0f0f0;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect intake screens, verify impeller condition, and test thermostat\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eWater pump kit, thermostat, intake screen, anodes\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eCheck fuel quality, primer bulb, and filters; inspect spark plugs and plug caps\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eFuel filter, spark plugs, primer bulb, ignition leads\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eLook for prop damage\/fouling, fuel restriction, dirty plugs; confirm throttle opening\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003ePropeller, fuel filter, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck oil level\/condition; inspect for fishing line on prop shaft damaging seals\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit, bearings, prop shaft hardware\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 0;\"\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\u003eSome consumables (plugs, anodes, filters) may carry across a series, but updates between revisions and platforms are common. Always verify compatibility with the full model code and serial number.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eAs preventive maintenance, replace every 2–3 seasons or 200–300 hours. Replace sooner if the tell‑tale weakens, you operate in sand\/silt, or after any overheat event.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change the gear oil?\u003c\/summary\u003e\n    \u003cp\u003eEvery 100 hours or annually. If the drained oil appears milky (water intrusion) or contains metal, correct the underlying issue—often seals—before further operation.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do you need to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003ePlease provide the full model code, serial number, horsepower, shaft length, and control type (tiller or remote). Clear photos of the nameplate and the existing part also help ensure an exact match.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px 0;\"\u003e\n  \u003cp style=\"max-width:900px;\"\u003eReady to find the right components? Browse the main Honda collection by horsepower, year, and model.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/honda-outboard-parts\" style=\"display:inline-block;padding:10px 14px;border:1px solid #1b4; border-radius:6px; text-decoration:none;\"\u003eShop Honda Outboard Parts\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":"water-pump-impeller-kit-fits-yamaha-70-300-hp-replaces-67f-12411-01-00-67f-12411-00-00-6cb-12411-00-00","title":"Yamaha 4-Stroke Outboard Thermostat Replacement – Replaces 67F-12411-01-00, 67F-12411-00-00 and 6CB-12411-00-00","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:560px; }\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  \u003csection\u003e\n    \u003ch2\u003eProduct Details\u003c\/h2\u003e\n    \u003cp\u003eThis aftermarket \u003cstrong\u003ethermostat replacement\u003c\/strong\u003e is designed for selected Yamaha 4-stroke outboards. It helps regulate engine operating temperature as part of the cooling system and is intended to replace the original thermostat when inspection or scheduled maintenance indicates service is required.\u003c\/p\u003e\n    \u003cp\u003eCatalog references identify this thermostat application with Yamaha part numbers \u003cstrong\u003e67F-12411-01-00\u003c\/strong\u003e, \u003cstrong\u003e67F-12411-00-00\u003c\/strong\u003e, and \u003cstrong\u003e6CB-12411-00-00\u003c\/strong\u003e. These references are supplied for identification and cross-reference purposes only. Confirm the complete engine model, year, and serial-number range before ordering.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003eAftermarket replacement thermostat for selected Yamaha 4-stroke outboards.\u003c\/li\u003e\n      \u003cli\u003eSupports proper cooling-system temperature regulation.\u003c\/li\u003e\n      \u003cli\u003eDirect replacement application where the listed reference number and engine conditions match.\u003c\/li\u003e\n      \u003cli\u003eThermostat only; this listing is not a water-pump impeller kit.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003ch2\u003ePart Number References\u003c\/h2\u003e\n    \u003cp\u003eThe following Yamaha numbers are associated with the thermostat application covered by this listing:\u003c\/p\u003e\n    \u003cdiv class=\"ss-table-wrap\"\u003e\n      \u003ctable class=\"ss-table\" aria-label=\"Thermostat part number references\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eReference number\u003c\/th\u003e\n\u003cth\u003eApplication note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e67F-12411-01-00\u003c\/td\u003e\n\u003ctd\u003eReplacement reference for selected F-series applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e67F-12411-00-00\u003c\/td\u003e\n\u003ctd\u003eReference appearing in earlier selected F-series applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e6CB-12411-00-00\u003c\/td\u003e\n\u003ctd\u003eReference associated with selected VF-series applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Part-number appearance alone does not confirm interchangeability. Match the engine model, model year, stroke, and serial-number range against your original part and the applicable service information.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n    \u003cp\u003eAvailable catalog data identifies the following Yamaha 4-stroke applications or application families. The ranges below are not a substitute for a complete model and serial-number check.\u003c\/p\u003e\n    \u003cdiv class=\"ss-table-wrap\"\u003e\n      \u003ctable class=\"ss-table\" aria-label=\"Yamaha thermostat compatibility\"\u003e\n        \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel or model family\u003c\/th\u003e\n\u003cth\u003eHorsepower\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYear or serial condition\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF75-F250\u003c\/td\u003e\n\u003ctd\u003e75-250 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005 and newer application range listed in catalog\u003c\/td\u003e\n\u003ctd\u003e67F-12411-01-00\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eF80, F100, F200, F225 and related F-series models\u003c\/td\u003e\n\u003ctd\u003e80-225 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eSelected 2001-2002 applications identified in engine catalogs\u003c\/td\u003e\n\u003ctd\u003e67F-12411-00-00\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eVF225LA and VF250LA\u003c\/td\u003e\n\u003ctd\u003e225-250 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2010 model applications identified in engine catalogs\u003c\/td\u003e\n\u003ctd\u003e6CB-12411-00-00\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n    \u003cp\u003eModel suffixes, shaft versions, production changes, and serial-number breaks can affect fitment. If your model is not shown, compare the thermostat dimensions and reference number with the manufacturer's parts information before purchase.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n    \u003cdl\u003e\n      \u003cdt\u003eProduct type\u003c\/dt\u003e\n      \u003cdd\u003eEngine thermostat replacement\u003c\/dd\u003e\n      \u003cdt\u003eApplication\u003c\/dt\u003e\n      \u003cdd\u003eSelected Yamaha 4-stroke outboard cooling systems\u003c\/dd\u003e\n      \u003cdt\u003eReplacement style\u003c\/dt\u003e\n      \u003cdd\u003eDirect replacement where application and reference number match\u003c\/dd\u003e\n      \u003cdt\u003ePrimary reference numbers\u003c\/dt\u003e\n      \u003cdd\u003e67F-12411-01-00, 67F-12411-00-00, 6CB-12411-00-00\u003c\/dd\u003e\n      \u003cdt\u003eBrand status\u003c\/dt\u003e\n      \u003cdd\u003eAftermarket replacement; not an original Yamaha component\u003c\/dd\u003e\n    \u003c\/dl\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n    \u003cul\u003e\n      \u003cli\u003e1 x Replacement thermostat\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eGaskets, seals, housings, water-pump components, and other service parts are not included unless specifically shown or stated in the order information.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n    \u003col\u003e\n      \u003cli\u003eAllow the engine to cool completely and disconnect the battery before beginning service.\u003c\/li\u003e\n      \u003cli\u003eLocate the thermostat housing using the service manual for the exact engine model.\u003c\/li\u003e\n      \u003cli\u003eRemove the housing cover carefully and note the position of the original thermostat, gasket, and seal.\u003c\/li\u003e\n      \u003cli\u003eClean the mating surfaces and inspect the housing for corrosion, damage, or obstruction.\u003c\/li\u003e\n      \u003cli\u003eInstall the replacement thermostat in the correct orientation using the appropriate new gasket or seal when required.\u003c\/li\u003e\n      \u003cli\u003eReassemble the housing and tighten fasteners according to the engine manufacturer's specified procedure and torque.\u003c\/li\u003e\n      \u003cli\u003eRun the engine with an adequate water supply and check for leaks, overheating warnings, and normal cooling-system operation.\u003c\/li\u003e\n    \u003c\/ol\u003e\n    \u003cp\u003eBecause thermostat housings and sealing requirements vary by model, use the applicable Yamaha service manual for detailed procedures and torque specifications.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003ch2\u003eMaintenance \u0026amp; Troubleshooting\u003c\/h2\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat are signs of a thermostat problem?\u003c\/summary\u003e\n      \u003cp\u003ePossible symptoms include abnormal operating temperature, overheating warnings, poor temperature regulation, restricted cooling-water flow, or a thermostat that remains open or closed. These symptoms can also be caused by other cooling-system faults, so inspect the complete system before replacing parts.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this a water-pump impeller kit?\u003c\/summary\u003e\n      \u003cp\u003eNo. This listing is for a thermostat replacement. It does not include a water-pump impeller, insert cup, wear plate, key, or water-pump housing components.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n      \u003cp\u003eCompare the reference number on your original thermostat and verify the complete engine make, horsepower, model designation, year, stroke, and serial-number range. Do not rely on horsepower alone.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this an OEM Yamaha part?\u003c\/summary\u003e\n      \u003cp\u003eNo. This is an aftermarket replacement intended for the applications identified above. Yamaha is a trademark of its respective owner and is used only to identify compatibility.\u003c\/p\u003e\n    \u003c\/details\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n    \u003cul\u003e\n      \u003cli\u003eWork only on a cool engine and follow the applicable service manual.\u003c\/li\u003e\n      \u003cli\u003eVerify the part number, model, year, stroke, and serial-number conditions before installation.\u003c\/li\u003e\n      \u003cli\u003eDo not operate an outboard that shows overheating, cooling-system leaks, or warning alarms until the cause has been identified.\u003c\/li\u003e\n      \u003cli\u003eProfessional installation is recommended if you are not experienced with outboard cooling-system service.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003csection\u003e\n    \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n    \u003cp\u003eSea Sierra supplies aftermarket marine replacement parts for routine maintenance and repair. Select the part by verified application details rather than by horsepower alone, and contact support if you need help comparing your original part with the listed references.\u003c\/p\u003e\n  \u003c\/section\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723788292411,"sku":"23KY720","price":95.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Water_Pump_Impeller_Kit_for_Yamaha_70_to_300_HP_67F-12411-01_-_JLM_MARINE-8289395.jpg?v=1763031779"}],"url":"https:\/\/seasierra.com\/collections\/honda-marine-4-stroke-efi-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}