{"title":"Yamaha 2-Stroke Outboard Engine 150-200HP Parts","description":"\u003csection id=\"hero\" style=\"max-width: 920px; padding: 12px 0;\"\u003e\n  \u003cp\u003eThis page supports Yamaha 2‑Stroke 150–200HP outboard engines. Use it to find compatible parts and practical service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Yamaha collection. Scroll to the bottom of this page to start browsing parts for this engine, and on the collection page use the Filter \u0026amp; Sort controls to narrow results by horsepower, year range, and part category\/section.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-outboard-parts\" style=\"display:inline-block; margin-top:8px; padding:10px 14px; background:#0b5; color:#fff; text-decoration:none; border-radius:4px;\"\u003eBrowse All Yamaha Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width: 920px; padding: 16px 0;\"\u003e\n  \u003ch2\u003eHow to Identify Your 150–200HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate location: Look on the port transom bracket or swivel bracket for the model\/serial plate.\u003c\/li\u003e\n    \u003cli\u003eReading the code: Example “VX150TLR…”. The letters indicate series\/induction (e.g., V=VMAX, X=EFI OX66; Z=HPDI), trim\/tilt (T), shaft length (S=15\", L=20\", X=25\"), controls (R=remote), and a suffix letter for the year.\u003c\/li\u003e\n    \u003cli\u003e2‑Stroke cues: Presence of an external oil tank or oil injection components. Decals such as OX66 or HPDI denote EFI\/direct‑injection variants.\u003c\/li\u003e\n    \u003cli\u003eMatch configuration: Confirm shaft length and control type before ordering parts like water pump kits, shift rods, and control\/rigging items.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"platforms\" style=\"max-width: 920px; padding: 16px 0;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eV6 2‑Stroke Carbureted (150\/175\/200 HP)\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 #ccc; padding:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:6px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e60° V6, carbureted 2‑stroke\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eExamples: 150TLR, 175TXR, 200TXR (naming varies by shaft\/control\/year)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eStrong power‑to‑weight, simple systems, broad parts availability\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eMany maintenance parts interchange across years; verify jetting\/thermostat specs by model code and shaft length (S\/L\/X)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV6 2‑Stroke OX66 EFI (150\/175\/200 HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin-top:10px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:6px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eV6 2‑stroke with OX66 electronic fuel injection\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eExamples: VX150, VX200 (exact suffix denotes trim\/shaft\/control\/year)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eImproved fuel delivery and cold starts versus carbs; strong mid‑range\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eUse clean fuel and a good filter\/water separator; some sensors\/pumps are EFI‑specific\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV6 2‑Stroke HPDI (200 HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse; margin-top:10px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:6px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eHigh Pressure Direct Injection (HPDI) V6 2‑stroke\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eExamples: Z200, LZ200 HPDI\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eEfficient combustion, good fuel economy for a 2‑stroke, clean running\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eFuel quality and filtration are critical; follow HPDI‑specific service procedures\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: 920px; padding: 16px 0;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for Yamaha 2‑stroke V6 models. Always refer to your official service manual for model‑specific procedures and intervals.\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 #ccc; padding:6px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:6px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:6px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:6px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect for water intrusion or metal; replace gaskets as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-service-maintenance-kits\"\u003eYamaha Service \u0026amp; Maintenance Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect 50 hours; replace ~100 hours or as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eUse correct heat range and gap; replace any fouled plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\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:6px;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect 50 hours; replace annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCritical for EFI\/HPDI; drain\/replace if water is present\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\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;\"\u003eWater pump impeller or kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eEvery 2–3 seasons (or 200 hours)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eReplace sooner if tell‑tale is weak or overheat occurs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-water-pump-repair-kits\"\u003eYamaha Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eAnodes (internal\/external)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect 50 hours; replace when ~50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eChoose zinc\/aluminum\/magnesium based on water type\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-anodes\"\u003eYamaha Anodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eOil injection system (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect every season\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCheck\/replace strainer, lines, and tank cap; verify pump prime and alarms\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/hoses\"\u003eHoses\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eThermostats \/ pressure control valve\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eEvery 2–3 years\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eStuck thermostats affect warm‑up, smoke, and idle quality\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-outboard-parts\"\u003eYamaha Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003ePropeller inspection \u0026amp; service\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eEach 50 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eRemove line, check hub for slip, grease splines\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-propellers\"\u003eYamaha Propellers\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: 920px; 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\/yamaha-service-maintenance-kits\"\u003eYamaha Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-water-pump-repair-kits\"\u003eYamaha Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eLower Unit Seals: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-lower-unit-seal-kits\"\u003eYamaha Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-anodes\"\u003eYamaha Anodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \u0026amp; Starting: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-starters\"\u003eYamaha Starters\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\u003ePropulsion: \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-propellers\"\u003eYamaha Propellers\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width: 920px; padding: 16px 0;\"\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 #ccc; padding:6px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:6px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:6px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eInspect intake screens for debris; verify pump output; check thermostats\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eWater pump kit, thermostats, intake screens, hoses\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eCheck prop condition and pitch; inspect fuel filter for water; test compression\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003ePropeller, fuel filter, fuel pump, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003ePrime bulb; examine plugs; for carb models check idle circuits; for EFI\/HPDI check injectors\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eSpark plugs, fuel filter, hoses, carb kits, injectors\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eExcessive smoke (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eConfirm oil pump calibration; ensure thermostats aren’t stuck open; verify fuel quality\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eHoses, thermostats, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eDrain oil and inspect; check for milky oil (seal leak); inspect prop shaft for fishing line\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;\"\u003eLower unit seal kit, propeller 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=\"max-width: 920px; 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\u003eMany wear items (anodes, plugs, impellers) interchange across Yamaha V6 2‑stroke years, but EFI\/HPDI components and some cooling\/fuel parts are platform‑specific. Always confirm by full model code and shaft length.\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, replace the impeller every 2–3 seasons (about 200 hours) or immediately if the tell‑tale weakens, you run sandy\/silty water, or an overheat occurs.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should lower unit gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eChange at least annually or every 100 hours. Inspect drained oil for water or metal and replace any damaged drain plug gaskets or leaking seals.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do I need to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the full model code and serial number from the nameplate, plus shaft length (S\/L\/X), control type (tiller\/remote), and whether your engine is carb, OX66 EFI, or HPDI.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width: 920px; padding: 16px 0;\"\u003e\n  \u003cp\u003eReady to find the right parts? Browse the main Yamaha collection and filter by horsepower, year, and model to zero in on components that fit your 150–200HP 2‑stroke.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/yamaha-outboard-parts\" style=\"display:inline-block; margin:8px 0; padding:10px 14px; background:#0b5; color:#fff; text-decoration:none; border-radius:4px;\"\u003eShop Yamaha Outboard Parts\u003c\/a\u003e\n  \u003cp style=\"font-size:0.95em; color:#444;\"\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":"oxygen-sensor-fits-yamaha-150-200hp-v6-outboard-replaces-67h-8592a-00-67h-8592a-01-sierra-18-7655","title":"Oxygen Sensor – Fits Yamaha 150-200HP V6 Outboard (Replaces 67H-8592A-00, 67H-8592A-01, Sierra 18-7655)","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\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis high-reliability \u003cstrong\u003eOxygen Sensor – Fits Yamaha 150HP\/200HP V6 Outboard Motors (Replaces 67H-8592A-00, 67H-8592A-01)\u003c\/strong\u003e is designed for precise compatibility with Yamaha 2-stroke V6 outboards, including 150HP and 200HP models from 1999–2005 (such as the PX150, DX150, LX150, VX150, and LX200 series). It plays a critical role in the EFI system by measuring exhaust oxygen levels to ensure an optimal fuel-to-air ratio for peak performance and efficiency.\u003c\/p\u003e\n  \u003cp\u003eThis part is a direct interchange for Yamaha part numbers 67H-8592A-00-00 and 67H-8592A-01-00, as well as Sierra Marine 18-7655.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eInstalls directly by threading into the engine’s exhaust housing.\u003c\/li\u003e\n    \u003cli\u003eFeatures a durable wired connector with blue and green fittings for a secure connection.\u003c\/li\u003e\n    \u003cli\u003eEngineered to restore engine efficiency and reduce emissions by correcting the fuel mixture.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\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 Cross-Reference 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\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e67H-8592A-00-00\u003c\/td\u003e\n          \u003ctd\u003eSuperseded by 67H-8592A-01-00\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003e67H-8592A-01-00\u003c\/td\u003e\n          \u003ctd\u003eCurrent OEM part number\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-7655\u003c\/td\u003e\n          \u003ctd\u003eAftermarket cross-reference\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\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\u003eThis sensor is designed for a specific range of Yamaha 2-stroke V6 outboard engines. Please verify that your model and year are listed for correct fitment.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine 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        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003ePX150\u003c\/td\u003e\n          \u003ctd\u003e150\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1999\u003c\/td\u003e\n          \u003ctd\u003e67H-8592A-00\/01\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eDX150\u003c\/td\u003e\n          \u003ctd\u003e150\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1999–2005\u003c\/td\u003e\n          \u003ctd\u003e67H-8592A-00\/01\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eLX150\u003c\/td\u003e\n          \u003ctd\u003e150\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1999–2001\u003c\/td\u003e\n          \u003ctd\u003e67H-8592A-00\/01\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eVX150\u003c\/td\u003e\n          \u003ctd\u003e150\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2000–2004\u003c\/td\u003e\n          \u003ctd\u003e67H-8592A-00\/01\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eLX200\u003c\/td\u003e\n          \u003ctd\u003e200\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1999–2001\u003c\/td\u003e\n          \u003ctd\u003e67H-8592A-00\/01\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eSX150 TLR\/TXR\u003c\/td\u003e\n          \u003ctd\u003e150\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1999–2004\u003c\/td\u003e\n          \u003ctd\u003e67H-8592A-00\/01\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eYamaha\u003c\/td\u003e\n          \u003ctd\u003eSX200 TLR\u003c\/td\u003e\n          \u003ctd\u003e200\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e1999–2004\u003c\/td\u003e\n          \u003ctd\u003e67H-8592A-00\/01\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eOxygen Sensor\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eThreaded into the exhaust housing\u003c\/dd\u003e\n    \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n    \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eWired electrical connector with blue and green connectors\u003c\/dd\u003e\n    \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMetal\u003c\/dd\u003e\n    \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eSilver\/Metallic\u003c\/dd\u003e\n    \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eThreaded\u003c\/dd\u003e\n    \u003cdt\u003eFunction\u003c\/dt\u003e\n\u003cdd\u003eUsed in EFI systems to measure oxygen content in exhaust for optimal fuel-air mixture\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\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Oxygen Sensor (Replaces 67H-8592A-01)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eEnsure the engine is off and cool, and disconnect the battery for safety.\u003c\/li\u003e\n    \u003cli\u003eLocate the existing oxygen sensor, typically threaded into the exhaust manifold or housing.\u003c\/li\u003e\n    \u003cli\u003eCarefully disconnect the wired electrical connector, taking care not to damage the clips.\u003c\/li\u003e\n    \u003cli\u003eUsing an appropriate wrench or oxygen sensor socket, unscrew and remove the old sensor.\u003c\/li\u003e\n    \u003cli\u003eClean the threads in the exhaust housing to ensure a proper seal.\u003c\/li\u003e\n    \u003cli\u003eApply a small amount of anti-seize compound to the new sensor's threads if it is not pre-applied.\u003c\/li\u003e\n    \u003cli\u003eThread the new sensor in by hand to avoid cross-threading, then tighten securely with your wrench. Do not overtighten.\u003c\/li\u003e\n    \u003cli\u003eReconnect the electrical connector firmly until it clicks.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery, start the engine, and check for any exhaust leaks or fault codes.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow can I tell if my oxygen sensor needs replacing?\u003c\/summary\u003e\n    \u003cp\u003eCommon symptoms of a faulty O2 sensor include a noticeable decrease in fuel efficiency, a rough or erratic idle, engine hesitation, and illumination of the check engine light. A diagnostic scan showing O2 sensor-related fault codes is the most reliable indicator.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the difference between the 67H-8592A-00 and 67H-8592A-01 part numbers?\u003c\/summary\u003e\n    \u003cp\u003eThe 67H-8592A-01 is the official supersession for the original 67H-8592A-00 part. They are considered functionally identical and fully interchangeable. The newer part number may reflect minor revisions or improvements in the manufacturing process.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this sensor work on an engine that isn't listed in the compatibility table?\u003c\/summary\u003e\n    \u003cp\u003eWe cannot guarantee fitment for any models not explicitly listed in the compatibility chart. Using the incorrect sensor can lead to poor engine performance or damage. Always verify your specific engine model and year before purchasing.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat tools are needed for installation?\u003c\/summary\u003e\n    \u003cp\u003eInstallation typically requires a standard wrench or a specialized oxygen sensor socket, which provides clearance for the wire. We also recommend having anti-seize compound on hand to apply to the threads before installation to prevent future seizing.\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\u003c\/section\u003e\n\n\u003csection\u003e\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\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723781640507,"sku":"19MC014","price":224.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Oxygen_Sensor_for_Yamaha_Outboard_150HP_200HP_67H-8592A-0_-_JLM_MARINE-8290848.jpg?v=1763031646"},{"product_id":"thermostat-fits-yamaha-2-stroke-3-250hp-replaces-6e5-12411-30-00-6e5-12411-20-00","title":"Yamaha Outboard Thermostat – 50°C, Fits 2-Stroke 75–250 HP (Replaces 6E5-12411-30, 688-12411-10, 688-12411-11)","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 {\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\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis Yamaha outboard thermostat is a 50°C replacement component for selected Yamaha two-stroke and two-stroke HPDI outboard engines. It helps regulate engine operating temperature by controlling coolant flow through the outboard cooling system.\u003c\/p\u003e\n\u003cp\u003eThe thermostat corresponds to Yamaha OEM part number \u003cstrong\u003e6E5-12411-30\u003c\/strong\u003e and supersedes \u003cstrong\u003e688-12411-10\u003c\/strong\u003e and \u003cstrong\u003e688-12411-11\u003c\/strong\u003e. Confirm the exact model designation and engine configuration before ordering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e50°C operating temperature.\u003c\/li\u003e\n\u003cli\u003eReplacement thermostat for selected Yamaha two-stroke outboards.\u003c\/li\u003e\n\u003cli\u003eDesigned for service replacement in the thermostat housing.\u003c\/li\u003e\n\u003cli\u003eThermostat only; gasket is not included unless specifically stated in the package contents.\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\u003eThese manufacturer part numbers identify the thermostat application covered by this listing. Part-number references do not replace verification of the complete engine model and configuration.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number References\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eReference Type\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\u003eCurrent Yamaha OEM reference\u003c\/td\u003e\n\u003ctd\u003e6E5-12411-30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuperseded Yamaha reference\u003c\/td\u003e\n\u003ctd\u003e688-12411-10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuperseded Yamaha reference\u003c\/td\u003e\n\u003ctd\u003e688-12411-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis thermostat is listed for the following Yamaha outboard models and configurations. The model, horsepower, stroke type and HPDI designation must all match your engine.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Yamaha Two-Stroke Outboard 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 \/ Configuration\u003c\/th\u003e\n\u003cth\u003eOperating Temperature\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\u003e75C\u003c\/td\u003e\n\u003ctd\u003e75 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e90A\u003c\/td\u003e\n\u003ctd\u003e90 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003ctd\u003e100 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e115C\u003c\/td\u003e\n\u003ctd\u003e115 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e130B\u003c\/td\u003e\n\u003ctd\u003e130 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e150F\u003c\/td\u003e\n\u003ctd\u003e150 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e175D\u003c\/td\u003e\n\u003ctd\u003e175 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e200F\u003c\/td\u003e\n\u003ctd\u003e200 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e200G\u003c\/td\u003e\n\u003ctd\u003e200 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e225D\u003c\/td\u003e\n\u003ctd\u003e225 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e250B\u003c\/td\u003e\n\u003ctd\u003e250 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eZ150P\u003c\/td\u003e\n\u003ctd\u003e150 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke HPDI\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eZ150Q\u003c\/td\u003e\n\u003ctd\u003e150 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke HPDI\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eZ175G\u003c\/td\u003e\n\u003ctd\u003e175 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke HPDI\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eZ200N\u003c\/td\u003e\n\u003ctd\u003e200 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke HPDI\u003c\/td\u003e\n\u003ctd\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eZ200P\u003c\/td\u003e\n\u003ctd\u003e200 HP\u003c\/td\u003e\n\u003ctd\u003eTwo-Stroke HPDI\u003c\/td\u003e\n\u003ctd\u003e50°C\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 The compatibility information above is limited to the listed model designations. Do not assume compatibility with every Yamaha two-stroke engine within the same horsepower range.\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\u003eOutboard engine thermostat\u003c\/dd\u003e\n\u003cdt\u003eOperating Temperature\u003c\/dt\u003e\n\u003cdd\u003e50°C\u003c\/dd\u003e\n\u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Yamaha two-stroke and two-stroke HPDI outboards\u003c\/dd\u003e\n\u003cdt\u003eOEM Reference\u003c\/dt\u003e\n\u003cdd\u003e6E5-12411-30\u003c\/dd\u003e\n\u003cdt\u003eSupersedes\u003c\/dt\u003e\n\u003cdd\u003e688-12411-10 and 688-12411-11\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 Thermostat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe thermostat housing gasket is not included. Replace the gasket during installation if the existing gasket is damaged, compressed or no longer seals correctly.\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 outboard engine to cool completely before beginning work.\u003c\/li\u003e\n\u003cli\u003eDisconnect the battery or otherwise follow the safety procedure specified in your engine service manual.\u003c\/li\u003e\n\u003cli\u003eLocate the thermostat housing and place a suitable container beneath the work area to catch residual water.\u003c\/li\u003e\n\u003cli\u003eRemove the housing cover carefully and note the position and orientation of the original thermostat.\u003c\/li\u003e\n\u003cli\u003eClean the housing and cover sealing surfaces. Remove old gasket material and inspect the surfaces for corrosion or damage.\u003c\/li\u003e\n\u003cli\u003eInstall the replacement thermostat in the same orientation as the original part. Follow the engine service manual for orientation details.\u003c\/li\u003e\n\u003cli\u003eInstall a suitable new gasket if required. The gasket is not included with this thermostat.\u003c\/li\u003e\n\u003cli\u003eReinstall the housing cover and tighten the fasteners to the manufacturer's specified torque.\u003c\/li\u003e\n\u003cli\u003eRun the engine using the correct water supply procedure for your outboard and check for leaks, proper water flow and abnormal temperature behavior.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eUse the manufacturer's service manual for model-specific torque values, thermostat orientation and cooling-system procedures.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does the thermostat do?\u003c\/summary\u003e\n\u003cp\u003eThe thermostat regulates coolant flow so the engine can operate within its intended temperature range. A thermostat that remains closed, remains open or operates inconsistently can affect engine temperature and cooling performance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the gasket included?\u003c\/summary\u003e\n\u003cp\u003eNo. This listing is for one thermostat. A thermostat housing gasket is not included and should be replaced separately when necessary.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow can I confirm compatibility?\u003c\/summary\u003e\n\u003cp\u003eCompare your complete Yamaha model designation and two-stroke or HPDI configuration with the compatibility table. Also compare the thermostat and housing against the original part before installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this thermostat on another Yamaha model with the same horsepower?\u003c\/summary\u003e\n\u003cp\u003eNot automatically. Horsepower alone does not confirm fitment. Use the exact model designations listed above and verify the OEM reference before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are common signs of a thermostat problem?\u003c\/summary\u003e\n\u003cp\u003ePossible symptoms include abnormal operating temperature, overheating, running excessively cool or unstable temperature behavior. Other cooling-system problems can cause similar symptoms, so inspect the complete cooling system before replacing parts.\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\u003eVerify the exact engine model, configuration and OEM reference before purchase.\u003c\/li\u003e\n\u003cli\u003eNever work on a hot engine or operate an outboard without the correct water supply.\u003c\/li\u003e\n\u003cli\u003eFollow the engine manufacturer's service instructions for installation, torque and testing.\u003c\/li\u003e\n\u003cli\u003eThis is a replacement part and is not represented as a Yamaha-branded OEM component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Practical service components for routine outboard maintenance and repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Compatibility information is presented by engine model and configuration where available.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService Support\u003c\/strong\u003e — Verify fitment and installation requirements before ordering or beginning repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723781837115,"sku":"24TH504","price":26.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Thermostat_for_YAMAHA_Two_Stroke_Outboard_6E5-12411-30_6E5-12411-20___6E5-12411-20_-_JLM_MARINE-8291431.jpg?v=1763031653"}],"url":"https:\/\/seasierra.com\/collections\/yamaha-2-stroke-outboard-engine-150-200hp-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}