{"title":"Tohatsu 2-Stroke 9.9-18HP Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px; max-width:1000px;\"\u003e\n  \u003cp\u003eThis page focuses on Tohatsu 2-Stroke 9.9–18HP outboard engines and helps you quickly find compatible replacement parts and service information. Below you’ll find maintenance tips, common replacement items, and troubleshooting guidance. You can also browse our main Tohatsu collection for additional components. 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\/section.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#0b6efd; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Tohatsu Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:16px; max-width:1000px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 9.9–18HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the nameplate\/serial plate on the transom clamp bracket or swivel bracket. It lists model, serial number, and sometimes shaft length.\u003c\/li\u003e\n    \u003cli\u003eDecode the model suffix: common letters indicate shaft length (S\/L\/XL), control type (tiller vs. remote), and other equipment.\u003c\/li\u003e\n    \u003cli\u003eConfirm it is a 2‑stroke model (no crankcase oil dipstick; premix fuel is used). 4‑stroke models have an engine oil fill\/dipstick.\u003c\/li\u003e\n    \u003cli\u003eNote that 9.9, 15, and 18HP two‑strokes may share many components; verify exact model code to match carburetor and propeller specs.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:16px; max-width:1000px;\"\u003e\n  \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n  \u003ch3\u003eTwin‑Cylinder, Carbureted 2‑Stroke\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 #e5e7eb; padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; 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 #f3f4f6;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eLightweight, twin‑cylinder, carbureted 2‑stroke outboards in the 9.9–18HP class.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eTohatsu M9.9\/M15\/M18; Nissan NS9.9\/NS15\/NS18 (example variant: MX18E2). Exact codes vary by shaft length and controls.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eSimple design, strong hole‑shot, low weight, and straightforward service.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eMany service parts interchange across 9.9–18HP families; carburetor calibration and prop pitch differ. Always confirm by model code, serial, and shaft length.\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; max-width:1000px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for typical recreational use. Always follow the procedures and schedules in your official service manual.\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 #e5e7eb; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; 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 #f3f4f6;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eCheck for water intrusion (milky oil) and metal on the drain plug magnet; replace seals if needed.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-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:8px; border-bottom:1px solid #f3f4f6;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eInspect gap and insulator color; replace if fouled, worn, or after extended storage.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\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 #f3f4f6;\"\u003eFuel filter (inline)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eReplace more often with ethanol fuel or if debris\/water is present.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\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 #f3f4f6;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e2 seasons or 200 hours (inspect annually)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eEssential for cooling flow; replace sooner if tell‑tale is weak or you ran sandy\/shallow water.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-water-pump-repair-kits\"\u003eTohatsu Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eAnodes (zincs)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eInspect every 3 months; replace when 50% gone\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eMatch anode material to your water (fresh\/brackish\/salt) to minimize corrosion.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\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:8px; border-bottom:1px solid #f3f4f6;\"\u003eCarburetor clean\/rebuild (as needed)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eAs symptoms appear or after long storage\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eStale fuel causes varnish and clogging; clean jets\/passages and replace gaskets\/needle.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/carburetor\"\u003eCarburetor\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eFuel\/oil premix (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eEvery refuel (per manual ratio)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eUse fresh gasoline and high‑quality TC‑W3 2‑stroke outboard oil at the ratio specified in your manual.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\"\u003eTohatsu Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eThermostat inspection\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e2–3 seasons (inspect if overheat\/poor warm‑up)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eReplace if stuck or corroded; proper operating temp improves performance and plug life.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\"\u003eTohatsu Outboard Parts\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; max-width:1000px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eCooling System – \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-water-pump-repair-kits\"\u003eTohatsu 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 and \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-pumps\"\u003eFuel Pumps\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eInduction – \u003ca href=\"https:\/\/seasierra.com\/collections\/carburetor\"\u003eCarburetor\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition – \u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eLower Unit – \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-lower-unit-seal-kits\"\u003eTohatsu Lower Unit Seal Kits\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\u003eGeneral Cooling\/Impellers – \u003ca href=\"https:\/\/seasierra.com\/collections\/impellers\"\u003eImpellers\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:16px; max-width:1000px;\"\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 #e5e7eb; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #e5e7eb; 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 #f3f4f6;\"\u003eWeak tell‑tale stream or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eInspect intake screen for blockage; verify impeller condition; test thermostat function.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eWater pump kit, thermostat, intake screen\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003ePrime bulb until firm; use fresh fuel at correct oil ratio; clean carb idle circuit; check plug gap.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eFuel filter, carburetor kit, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eVerify compression and spark; check prop for damage or wrong pitch; confirm full throttle opening.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eSpark plugs, fuel pump, carburetor components, propeller\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eExcessive smoke (2‑stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eConfirm oil mix ratio; ensure fuel is fresh; check for stuck choke\/enrichment.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eSpark plugs, carb components, thermostat\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eInspect drained oil for water\/metal; check for fishing line at prop shaft; pressure\/vacuum test seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px; border-bottom:1px solid #f3f4f6;\"\u003eLower unit seal kit, bearings, prop shaft seal\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; max-width:1000px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between 9.9HP, 15HP, and 18HP 2‑stroke models?\u003c\/summary\u003e\n    \u003cp\u003eMany cooling, ignition, and gearcase components interchange, but carburetor calibration, jetting, and propeller pitch often differ. Always confirm by model code, serial number, and shaft length before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the water pump impeller?\u003c\/summary\u003e\n    \u003cp\u003eInspect annually and replace every 2 seasons or about 200 hours. Replace sooner if you’ve run sandy or weedy shallows, notice a weak tell‑tale, or experience overheat warnings.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the lower unit gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eAs a general rule, every 100 hours or once per year. If you see milky oil or metal on the magnetic drain plug, service immediately and pressure‑test the gearcase to check seals.\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 (S\/L\/XL), control type (tiller\/remote), and a photo of the nameplate. Photos of the part needing replacement are also helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px; max-width:1000px;\"\u003e\n  \u003cp\u003eReady to find parts by horsepower, year, and model? Browse the main Tohatsu collection to locate components that fit your engine.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/tohatsu-outboard-parts\" style=\"display:inline-block; padding:10px 16px; background:#0b6efd; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Tohatsu Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px; color:#374151;\"\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":"carburetor-assembly-fits-tohatsu-nissan-9-9-18hp-replaces-3g2-03100-0-3g2-03100-2","title":"Carburetor Assembly for Tohatsu \u0026 Nissan 9.9HP, 15HP and 18HP Two-Stroke Outboards — Replaces 3G2-03100-0 and 3G2-03100-2","description":"\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; word-break:normal; letter-spacing:normal;\n    font-weight:600; 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\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003eaftermarket carburetor assembly\u003c\/strong\u003e is intended as a replacement for selected Tohatsu and Nissan 9.9HP, 15HP and 18HP two-stroke outboard applications. It is associated with Tohatsu M9.9D2, M15D2 and M18E2 models and corresponding Nissan-branded NS9.9D2, NS15D2 and NS18E2 applications.\u003c\/p\u003e\n  \u003cp\u003eThe principal replacement references associated with this assembly are \u003cstrong\u003eTohatsu 3G2-03100-0\u003c\/strong\u003e and \u003cstrong\u003eTohatsu 3G2-03100-2\u003c\/strong\u003e. Confirm the complete engine model and serial information, mounting arrangement and the number stamped on your original carburetor before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eProduct type: Carburetor assembly\u003c\/li\u003e\n    \u003cli\u003eApplication: Selected two-stroke outboard engines\u003c\/li\u003e\n    \u003cli\u003eInstallation: Replacement installation using the original engine mounting arrangement\u003c\/li\u003e\n    \u003cli\u003eFuel: Gasoline\u003c\/li\u003e\n    \u003cli\u003eQuantity: 1 carburetor assembly\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number References\u003c\/h2\u003e\n  \u003cp\u003eThese manufacturer references are provided for identification and replacement comparison. A number match alone does not replace model and serial-number verification.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number References\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eReference\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\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-0\u003c\/td\u003e\n\u003ctd\u003ePrimary replacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-2\u003c\/td\u003e\n\u003ctd\u003ePrimary replacement 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\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eThe following model and horsepower groupings are associated with this carburetor assembly. Verify the exact engine model, serial range and original carburetor before installation.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Tohatsu and Nissan 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\u003eReference\u003c\/th\u003e\n\u003cth\u003eVerification requirement\u003c\/th\u003e\n\u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.9D2\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-0 \/ 3G2-03100-2\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original carburetor configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM15D2\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-0 \/ 3G2-03100-2\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original carburetor configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM18E2\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-0 \/ 3G2-03100-2\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original carburetor configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS9.9D2\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eCompare with the Tohatsu reference\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original carburetor configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS15D2\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eCompare with the Tohatsu reference\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original carburetor configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS18E2\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003eCompare with the Tohatsu reference\u003c\/td\u003e\n\u003ctd\u003eConfirm model and original carburetor configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003ch3\u003eMercury Cross-Reference Information\u003c\/h3\u003e\n  \u003cp\u003eCatalog records associate reference \u003cstrong\u003e3303-803687T01\u003c\/strong\u003e with selected Mercury two-cylinder 9.9HP, 15HP and 18HP international models. This information is a cross-reference lead rather than a universal fitment claim; verify the serial range and compare the original carburetor before ordering.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Mercury Cross-Reference Conditions\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eSerial 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\u003eMercury 9.9, 2-cylinder International\u003c\/td\u003e\n\u003ctd\u003e9.9\u003c\/td\u003e\n\u003ctd\u003e0N059858 \u0026amp; up\u003c\/td\u003e\n\u003ctd\u003e3303-803687T01\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury 15, 2-cylinder International\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e0N001590 through 0N055284\u003c\/td\u003e\n\u003ctd\u003e3303-803687T01\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury 15, 2-cylinder International\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e0N055285 \u0026amp; up\u003c\/td\u003e\n\u003ctd\u003e3303-803687T01\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury 18, 2-cylinder International\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e0N001590 through 0N055284\u003c\/td\u003e\n\u003ctd\u003e3303-803687T01\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury 18, 2-cylinder International\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e0N055285 \u0026amp; up\u003c\/td\u003e\n\u003ctd\u003e3303-803687T01\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eCarburetor assembly\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eSelected Tohatsu and Nissan two-stroke outboards from 9.9HP to 18HP\u003c\/dd\u003e\n    \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement installation\u003c\/dd\u003e\n    \u003cdt\u003ePrimary References\u003c\/dt\u003e\n\u003cdd\u003e3G2-03100-0 and 3G2-03100-2\u003c\/dd\u003e\n    \u003cdt\u003eIncluded Quantity\u003c\/dt\u003e\n\u003cdd\u003e1 assembly\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\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\u003c\/span\u003e x Carburetor assembly\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003eMounting gaskets, additional service parts and engine-specific hardware are not confirmed as included. Reuse or replace these items according to the engine manufacturer's service requirements.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eTurn the engine off, allow it to cool and disconnect the fuel supply before beginning work.\u003c\/li\u003e\n    \u003cli\u003eDocument the routing and adjustment of the fuel lines, throttle linkage and choke connections before removing the original carburetor.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the fuel lines and linkages, then remove the mounting hardware. Prevent debris from entering the intake.\u003c\/li\u003e\n    \u003cli\u003eClean the mounting surface and install a suitable new gasket if the original gasket is damaged or the service procedure requires replacement.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement assembly in the same orientation as the original and tighten the mounting hardware to the engine manufacturer's specification.\u003c\/li\u003e\n    \u003cli\u003eReconnect the fuel lines, throttle linkage and choke connections. Confirm that the throttle returns freely to the idle position.\u003c\/li\u003e\n    \u003cli\u003ePrime the fuel system and inspect all connections for leaks before starting the engine.\u003c\/li\u003e\n    \u003cli\u003eStart the engine in a safe, properly ventilated area and verify idle, throttle response and fuel-system sealing. Do not change jets or mixture settings unless directed by the applicable service procedure.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm fitment?\u003c\/summary\u003e\n    \u003cp\u003eCompare the complete engine model and serial information, the number on your original carburetor and the physical mounting and linkage arrangement with the information above. Horsepower alone is not sufficient to confirm fitment.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this carburetor include a gasket?\u003c\/summary\u003e\n    \u003cp\u003eA mounting gasket is not confirmed as included with this listing. Inspect the existing gasket and follow the applicable service procedure when selecting a replacement.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill adjustment be required after installation?\u003c\/summary\u003e\n    \u003cp\u003eCheck the engine's idle speed, throttle operation and fuel-system sealing after installation. Any adjustment must follow the manufacturer's specifications for the exact engine model.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat symptoms may indicate a carburetor problem?\u003c\/summary\u003e\n    \u003cp\u003eHard starting, unstable idle, stalling, poor acceleration, fuel leakage and inconsistent operation can be associated with a contaminated, worn or incorrectly adjusted carburetor. Check the complete fuel and ignition systems before replacing parts.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I clean the original carburetor instead?\u003c\/summary\u003e\n    \u003cp\u003eCleaning may help when the problem is caused by deposits or restricted passages. Replacement may be appropriate when the body, throttle components, needle-and-seat assembly or other internal parts are damaged or excessively worn.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is an aftermarket replacement assembly intended to correspond to the listed manufacturer references. It is not sold as a genuine Tohatsu, Nissan or Mercury-branded component.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eUse the exact engine model and serial information when confirming compatibility.\u003c\/li\u003e\n    \u003cli\u003eCompare the replacement assembly with the original part before installation.\u003c\/li\u003e\n    \u003cli\u003eWork only on a cool engine in a well-ventilated area and keep fuel away from ignition sources.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended if you are not familiar with outboard fuel-system service.\u003c\/li\u003e\n    \u003cli\u003eDo not operate the engine if fuel leaks are present or if the throttle does not return freely.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\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 — Parts are selected for common marine repair and replacement applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Model, horsepower and serial conditions are provided to help you compare the replacement with your original part.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSupport for Fitment Checks\u003c\/strong\u003e — Use the engine identification plate and original component numbers when requesting compatibility assistance.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723986932027,"sku":"JLM19CA3G2-G","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/JLM19CA3G2-1.jpg?v=1763039506"},{"product_id":"carburetor-assembly-fits-tohatsu-nissan-9-9-18hp-two-stroke-replaces-3g2-03100-0-sierra-18-7848","title":"Carburetor Assembly for Tohatsu and Nissan 9.9–18 HP Two-Stroke Outboards — Replaces 3G2-03100-0 and Sierra 18-7848","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 aftermarket \u003cstrong\u003ecarburetor assembly\u003c\/strong\u003e is intended as a replacement for selected Tohatsu and Nissan 9.9 HP, 15 HP, and 18 HP two-stroke outboard applications. Listed model applications include Tohatsu M9.9D2, M15D2, and M18E2, along with corresponding Nissan NS9.9D2, NS15D2, and NS18E2 models.\u003c\/p\u003e\n\u003cp\u003eThe assembly is listed as a replacement for Tohatsu reference numbers \u003cstrong\u003e3G2-03100-0\u003c\/strong\u003e, \u003cstrong\u003e3G2-03100-1\u003c\/strong\u003e, \u003cstrong\u003e3G2-03100-2\u003c\/strong\u003e, \u003cstrong\u003e3G2-03100-3\u003c\/strong\u003e, \u003cstrong\u003e3G2-03100-4\u003c\/strong\u003e, and \u003cstrong\u003e3G2-03100-5\u003c\/strong\u003e, and for aftermarket reference \u003cstrong\u003eSierra 18-7848\u003c\/strong\u003e. Confirm the number on your original carburetor and verify the complete engine model before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement carburetor assembly for selected two-stroke outboard engines.\u003c\/li\u003e\n  \u003cli\u003eDesigned for direct installation at the original carburetor mounting location.\u003c\/li\u003e\n  \u003cli\u003eUses a mounting gasket to help provide a proper seal; a gasket is not listed as a separate included item.\u003c\/li\u003e\n  \u003cli\u003eIntended to restore proper fuel metering when the original carburetor is worn, damaged, or no longer serviceable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number References\u003c\/h2\u003e\n\u003cp\u003eThe following numbers are reference identifiers associated with this listing. They should be compared with the number and configuration of the carburetor being replaced.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number References\"\u003e\n    \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eReference Type\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-0\u003c\/td\u003e\n\u003ctd\u003eOEM reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-1\u003c\/td\u003e\n\u003ctd\u003eRelated or superseded reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-2\u003c\/td\u003e\n\u003ctd\u003eRelated or superseded reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-3\u003c\/td\u003e\n\u003ctd\u003eRelated or superseded reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-4\u003c\/td\u003e\n\u003ctd\u003eRelated or superseded reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3G2-03100-5\u003c\/td\u003e\n\u003ctd\u003eRelated or superseded reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-7848\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\n\u003ch2\u003eEngine and Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe applications below are the listed model references for this carburetor. Model, horsepower, stroke type, and the number on the original carburetor must all match before installation.\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\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eListed Reference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM9.9D2\u003c\/td\u003e\n\u003ctd\u003e9.9 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3G2-03100 series\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM15D2\u003c\/td\u003e\n\u003ctd\u003e15 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3G2-03100 series\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM18E2\u003c\/td\u003e\n\u003ctd\u003e18 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3G2-03100 series\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS9.9D2\u003c\/td\u003e\n\u003ctd\u003e9.9 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3G2-03100 series\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS15D2\u003c\/td\u003e\n\u003ctd\u003e15 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3G2-03100 series\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS18E2\u003c\/td\u003e\n\u003ctd\u003e18 HP\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e3G2-03100 series\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 Compatibility can vary by model revision, production year, serial-number range, and carburetor configuration. If your engine identification plate or original carburetor shows a different model or part number, confirm fitment before purchase.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n  \u003cdd\u003eCarburetor assembly\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eSelected Tohatsu and Nissan 9.9–18 HP two-stroke outboards\u003c\/dd\u003e\n  \u003cdt\u003eFuel\u003c\/dt\u003e\n  \u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eDirect replacement at the original mounting location\u003c\/dd\u003e\n  \u003cdt\u003eMounting\u003c\/dt\u003e\n  \u003cdd\u003eUses the engine's factory mounting points and a suitable gasket\u003c\/dd\u003e\n  \u003cdt\u003eFinish\u003c\/dt\u003e\n  \u003cdd\u003eMetallic or silver-colored housing\u003c\/dd\u003e\n  \u003cdt\u003eAdjustment\u003c\/dt\u003e\n  \u003cdd\u003eInspection and possible idle or mixture adjustment may be required after installation\u003c\/dd\u003e\n  \u003cdt\u003eGasket\u003c\/dt\u003e\n  \u003cdd\u003eNot listed as a separate included item; inspect and replace the gasket as required\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n  \u003cdd\u003eRefer to the applicable order and store warranty terms\u003c\/dd\u003e\n\u003c\/dl\u003e\n\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 Carburetor assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA replacement mounting gasket and any additional engine-specific hardware are not listed as included. Reuse hardware only if it is serviceable and obtain a suitable new gasket when required.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eTurn the engine off, allow it to cool, and place it in a stable, well-ventilated work area.\u003c\/li\u003e\n  \u003cli\u003eShut off the fuel supply and disconnect the battery according to the engine manufacturer's safety procedure.\u003c\/li\u003e\n  \u003cli\u003eClean the area around the carburetor before disconnecting the fuel line to help prevent dirt from entering the fuel system.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the fuel line, throttle and choke linkages, and any other attached hoses or fittings.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting fasteners and take off the original carburetor.\u003c\/li\u003e\n  \u003cli\u003eInspect the mounting surface and replace the gasket if it is damaged, compressed, or otherwise unsuitable.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement carburetor with the gasket correctly aligned. Tighten the fasteners evenly to the engine manufacturer's specification.\u003c\/li\u003e\n  \u003cli\u003eReconnect the linkages, fuel line, and any removed fittings. Confirm that the throttle and choke operate freely.\u003c\/li\u003e\n  \u003cli\u003eRestore the fuel supply and check carefully for leaks before starting the engine.\u003c\/li\u003e\n  \u003cli\u003eStart the engine in a safe area and check idle quality, throttle response, and fuel leakage. Adjust only as permitted by the engine service instructions.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting and FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I confirm that this carburetor fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eCheck the engine brand, exact model, horsepower, two-stroke configuration, and the number stamped or listed on the original carburetor. Compare all of those details with the compatibility table and reference numbers. Do not rely on horsepower alone.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes the package include a gasket?\u003c\/summary\u003e\n  \u003cp\u003eA gasket is not listed as a separate item in the package contents. Plan to inspect the existing gasket and install a suitable new gasket when required for a proper seal.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill adjustment be needed after installation?\u003c\/summary\u003e\n  \u003cp\u003ePossibly. Idle quality and mixture can be affected by engine condition, fuel quality, storage, altitude, and other factors. Follow the applicable service instructions and do not make adjustments beyond the manufacturer's specifications.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat symptoms can indicate a carburetor problem?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms include hard starting, rough or unstable idle, stalling, poor acceleration, excessive fuel consumption, fuel leakage, or abnormal exhaust smoke. Other fuel-system or ignition faults can cause similar symptoms, so diagnose the engine before replacing parts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM carburetor?\u003c\/summary\u003e\n  \u003cp\u003eNo. This listing is for an aftermarket replacement assembly intended for the listed applications and reference numbers. It is not sold as a genuine Tohatsu, Nissan, or Sierra-branded part.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should a marine carburetor be serviced?\u003c\/summary\u003e\n  \u003cp\u003eService needs depend on fuel quality, operating conditions, and storage practices. Use fresh fuel, follow the engine manufacturer's storage procedure, and clean or service the carburetor when contamination or performance symptoms occur.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat should I do if the part does not match my original?\u003c\/summary\u003e\n  \u003cp\u003eDo not force installation or modify the mounting, linkage, or fuel connections. Compare the model and reference number again and contact support before installing the part.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety and Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWork only on a cool engine in a well-ventilated area away from sparks, flames, and other ignition sources.\u003c\/li\u003e\n  \u003cli\u003eGasoline is flammable. Clean spills promptly and dispose of fuel-contaminated materials safely.\u003c\/li\u003e\n  \u003cli\u003eVerify the exact model, stroke type, serial range when applicable, and original carburetor reference before ordering.\u003c\/li\u003e\n  \u003cli\u003eCheck all fuel connections for leaks before operation and after the first test run.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when you are not familiar with outboard fuel-system service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMarine Replacement Parts\u003c\/strong\u003e — Parts are selected for practical repair and maintenance applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Compare engine identification details and reference numbers before ordering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomer Support\u003c\/strong\u003e — Contact support with your engine model and original-part information if you need help confirming an application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723986964795,"sku":"JLM19CA3G2","price":72.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/JLM19CA3G2-1_995ea442-9e19-4794-858e-6508d0d2128b.jpg?v=1763039507"}],"url":"https:\/\/seasierra.com\/collections\/tohatsu-2-stroke-9-9-18hp-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}