{"title":"Mercury 2-Stroke 2.5-3.5HP Outboard Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px;border:1px solid #eee;border-radius:8px;max-width:980px;\"\u003e\n  \u003cp\u003eThis page is tailored for Mercury 2‑Stroke 2.5–3.5HP outboard engines. Use it to find compatible parts and quick service information for your portable kicker. You’ll find maintenance tips, commonly replaced parts, and troubleshooting guidance below. You can also browse the main Mercury collection any time. Scroll to the bottom 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.\u003c\/p\u003e\n  \u003cdiv\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block;padding:10px 14px;background:#0b5cab;color:#fff;text-decoration:none;border-radius:6px;\"\u003eBrowse All Mercury Parts\u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width:980px;padding:16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 2.5–3.5HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eSerial plate location: Look on the transom\/mounting bracket or swivel bracket. The Mercury serial number is the primary key for selecting correct parts.\u003c\/li\u003e\n    \u003cli\u003eReading the model: Small 2‑stroke portables are typically single‑cylinder, carbureted, manual‑start tiller models. Suffixes may indicate shaft length (short 15\" vs long 20\") and regional variants.\u003c\/li\u003e\n    \u003cli\u003e2‑Stroke vs 4‑Stroke: 2‑strokes do not have an engine oil fill\/dipstick and require premix or an oil‑injection system. If your cowl shows an oil fill cap and dipstick, you likely have a 4‑stroke (different parts).\u003c\/li\u003e\n    \u003cli\u003ePlatform differences: 2.5, 3.3, and 3.5HP models share many service parts but can differ by serial range (jetting, prop, and gearcase changes). Always match by serial number.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"max-width:980px;padding:16px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003eMercury 2‑Stroke 2.5–3.5HP Portable\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 #ddd;padding:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eSingle‑cylinder, carbureted 2‑stroke, manual start, tiller steer; short or long shaft options.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e2.5HP, 3.3HP, and 3.5HP 2‑stroke portable outboards across multiple serial ranges\/regions.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eVery light weight, simple maintenance, reliable low‑speed thrust for dinghies and small tenders.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eSelect parts by serial number. Follow the fuel\/oil premix ratio shown on the cowl or in the owner’s manual (many use 50:1 with NMMA TC‑W3 oil, but verify for your serial range).\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:980px;padding:16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for small Mercury 2‑stroke portable outboards. 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 #ddd;padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect for water intrusion (milky oil). Replace drain\/fill gaskets.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury Outboard Parts\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect every 50 hours; replace 100 hours\/annual\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eCheck gap and color; replace if fouled or eroded.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInline fuel filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eReplace or clean (if serviceable). Keep water out of the tank.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eEvery 2 seasons (or 200 hours)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eReplace sooner if weak tell‑tale or after sand\/silt use.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury 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 #f0f0f0;\"\u003eAnodes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect monthly; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eUse correct alloy for fresh, brackish, or salt water.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003ePropeller \u0026amp; shear pin\/cotter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect every trip; remove annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eGrease the propshaft; check for fishing line in seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eFuel lines \u0026amp; primer bulb\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect each season; replace as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eLook for softening, cracks, ethanol damage, or air leaks.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\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:8px;\"\u003e2‑stroke fuel\/oil mix\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery fill‑up\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eUse the ratio specified for your serial range (many are 50:1 with TC‑W3 oil). Mix thoroughly; use fresh fuel.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\"\u003eMercury 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=\"max-width:980px;padding:16px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eCooling System – \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-water-pump-repair-kits\"\u003eMercury Water Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase Sealing – \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-lower-unit-seal-kits\"\u003eMercury Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System – \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Tune‑Up – \u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\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\u003eCorrosion Protection – \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCarburetion – \u003ca href=\"https:\/\/seasierra.com\/collections\/carburetor\"\u003eCarburetor Components\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width:980px;padding:16px;\"\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 #ddd;padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eClear the tell‑tale outlet; inspect water inlet screens; check impeller age.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\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 #f0f0f0;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eInspect prop for damage or wrong pitch; replace\/clean fuel filter; verify carb settings and clean jets.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003ePropeller, fuel filter, carburetor kit (jets\/needle\/float), spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003ePrime the bulb; check choke\/enrichment; inspect plugs; drain stale fuel; look for air leaks in lines.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eSpark plugs, primer bulb\/hoses, carburetor kit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eExcessive smoke\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eConfirm correct fuel\/oil ratio; ensure fresh fuel; verify idle mixture not overly rich.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;border-bottom:1px solid #f0f0f0;\"\u003eSpark plugs, carburetor needle\/seat, fuel\/oil mixing supplies\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGearcase noise or metal in oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eDrain to inspect oil; check for fishing line at propshaft; pressure test gearcase if water is present.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit, bearings\/shims, water pump seals\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:980px;padding:16px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between 2.5, 3.3, and 3.5HP 2‑stroke models?\u003c\/summary\u003e\n    \u003cp\u003eMany service items (impellers, some anodes, and hardware) overlap, but jetting, props, and certain gearcase parts vary by serial range. Match parts to your serial number for best results.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the impeller?\u003c\/summary\u003e\n    \u003cp\u003eAs a rule of thumb, replace every two seasons (or sooner if you see a weak tell‑tale, overheat warning, or frequent sandy\/shallow use). Impellers harden with age even if hours are low.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should I change the lower unit gear oil?\u003c\/summary\u003e\n    \u003cp\u003eChange at least annually or every 100 hours. Inspect the drained oil for milkiness (water) or metal. If water is present, pressure test and reseal the gearcase.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do I need to confirm compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the Mercury serial number, shaft length (short\/long), approximate model year or purchase date, and any regional designation. Photos of the nameplate and the part you’re replacing are very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width:980px;padding:16px;border-top:1px solid #eee;\"\u003e\n  \u003cp\u003eReady to find parts by horsepower, year, and model? Browse our main Mercury selection and use the Filter \u0026amp; Sort tools to narrow to your engine.\u003c\/p\u003e\n  \u003cp\u003e\n    \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block;padding:10px 14px;background:#0b5cab;color:#fff;text-decoration:none;border-radius:6px;\"\u003eShop Mercury Outboard Parts\u003c\/a\u003e\n  \u003c\/p\u003e\n  \u003cp style=\"font-size:0.95em;color:#333;\"\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-repair-kit-fits-tohatsu-nissan-2-5-3-5hp-2-stroke-replaces-3f0-87122-1-18-7765-11502m","title":"Carburetor Repair Seal Kit for Tohatsu\/Nissan\/Mercury Mariner 2.5–3.5 HP 2-Stroke Outboards","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;\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\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis \u003cstrong\u003ecarburetor repair seal kit\u003c\/strong\u003e is designed for select Tohatsu and Nissan 2-stroke outboard engines rated at 2.5 HP and 3.5 HP, as well as select Mercury Mariner 2-stroke 2.5 HP and 3.5 HP outboards. It is intended to renew the carburetor sealing components and help restore reliable sealing during carburetor service.\u003c\/p\u003e\n  \u003cp\u003eFor Tohatsu and Nissan applications, the listed reference numbers are 3F0-87122-0, 3F0-87122-1, 3F0-87122-2, 3F0871220M, 3F0871221M, and 3F0871222M. For Mercury Mariner applications, the listed reference numbers are 41859M and 92520M. Confirm the exact engine model and reference number before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eRepair seal kit for small two-stroke outboard carburetors.\u003c\/li\u003e\n    \u003cli\u003eDesigned for the listed Tohatsu, Nissan, Mercury, and Mariner applications.\u003c\/li\u003e\n    \u003cli\u003eUseful when servicing a carburetor with worn, damaged, or deteriorated sealing components.\u003c\/li\u003e\n    \u003cli\u003eSuitable for installation by an experienced DIY mechanic or marine service professional.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eReference Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse the following manufacturer reference numbers to help confirm application compatibility. These numbers identify the listed application references and should be matched to your engine before purchase.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Reference Number Matrix\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eReference Number\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\u003e3F0-87122-0\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-87122-1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-87122-2\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0871220M\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0871221M\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0871222M\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Mariner\u003c\/td\u003e\n\u003ctd\u003e41859M\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury Mariner\u003c\/td\u003e\n\u003ctd\u003e92520M\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eThe confirmed application information identifies the following model families and engine conditions. Year, serial-number, shaft-length, and other production-range information was not provided, so verify the model designation and reference number against your engine before ordering.\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\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 Numbers\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\u003eM 2.5A2\u003c\/td\u003e\n          \u003ctd\u003e2.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTohatsu\u003c\/td\u003e\n          \u003ctd\u003eM 3.5A2\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTohatsu\u003c\/td\u003e\n          \u003ctd\u003eM 3.5B\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTohatsu\u003c\/td\u003e\n          \u003ctd\u003eM 3.5B2\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eNissan\u003c\/td\u003e\n          \u003ctd\u003eNS 2.5A2\u003c\/td\u003e\n          \u003ctd\u003e2.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eNissan\u003c\/td\u003e\n          \u003ctd\u003eNS 3.5A2\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eNissan\u003c\/td\u003e\n          \u003ctd\u003eNS 3.5B\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eNissan\u003c\/td\u003e\n          \u003ctd\u003eNS 3.5B2\u003c\/td\u003e\n          \u003ctd\u003e3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e3F0-87122-0, 3F0-87122-1, 3F0-87122-2; 3F0871220M, 3F0871221M, 3F0871222M\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury Mariner\u003c\/td\u003e\n          \u003ctd\u003eApplication-specific 2.5 HP and 3.5 HP models\u003c\/td\u003e\n          \u003ctd\u003e2.5–3.5 HP\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e41859M, 92520M\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eCarburetor Repair Seal Kit\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eSmall 2-stroke marine outboard carburetor service\u003c\/dd\u003e\n    \u003cdt\u003eRated Engine Range\u003c\/dt\u003e\n    \u003cdd\u003e2.5 HP and 3.5 HP applications\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eDIY or professional installation\u003c\/dd\u003e\n    \u003cdt\u003eFuel System\u003c\/dt\u003e\n    \u003cdd\u003eGasoline outboard fuel systems\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cp\u003eThis product is a carburetor repair seal kit. The supplied package contents are the sealing components specified for the applicable carburetor service. Individual component types and quantities were not specified in the product record; compare the package and application with your original parts before installation.\u003c\/p\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eShut off the fuel supply and work in a well-ventilated area away from ignition sources.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the fuel line and carefully remove the carburetor, noting the position of all hoses, linkages, and fasteners.\u003c\/li\u003e\n    \u003cli\u003eDisassemble the carburetor on a clean work surface and retain reusable hardware in an organized manner.\u003c\/li\u003e\n    \u003cli\u003eClean the reusable metal surfaces with an appropriate carburetor cleaner and allow them to dry fully.\u003c\/li\u003e\n    \u003cli\u003eRemove the old sealing components without scratching the mating surfaces.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement seals in the correct locations and make sure each seal is seated properly.\u003c\/li\u003e\n    \u003cli\u003eReassemble the carburetor according to the service instructions for the specific engine.\u003c\/li\u003e\n    \u003cli\u003eReinstall the carburetor, reconnect all hoses and linkages, and check carefully for fuel leaks before starting the engine.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm that this seal kit fits my engine?\u003c\/summary\u003e\n    \u003cp\u003eMatch your engine brand, model, horsepower, and 2-stroke configuration to the compatibility information above. Also compare one of the listed reference numbers—3F0-87122-0, 3F0-87122-1, 3F0-87122-2, 3F0871220M, 3F0871221M, 3F0871222M, 41859M, or 92520M—with the number for your original carburetor service part.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat symptoms can indicate worn carburetor seals?\u003c\/summary\u003e\n    \u003cp\u003ePossible symptoms include fuel leakage, air or fuel leaks around the carburetor joints, difficult starting, unstable operation, or poor running after other basic fuel-system checks have been completed. These symptoms can have multiple causes, so inspect the complete carburetor and fuel system.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this product include a replacement float or needle valve?\u003c\/summary\u003e\n    \u003cp\u003eThe product is identified as a carburetor repair seal kit. A float, needle valve, or other non-sealing carburetor components are not specified as included. Do not assume those parts are supplied.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use this on a Mercury Mariner 2.5 HP or 3.5 HP outboard?\u003c\/summary\u003e\n    \u003cp\u003eThe company application record lists Mercury Mariner 2-stroke 2.5 HP and 3.5 HP outboards with reference numbers 41859M and 92520M. Verify the exact model and reference number before ordering because year and serial-number coverage was not specified.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs professional installation required?\u003c\/summary\u003e\n    \u003cp\u003eInstallation may be performed by an experienced DIY mechanic or a qualified marine technician. Follow the service information for your engine and check for fuel leaks before operation.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this an OEM part?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is for a replacement carburetor repair seal kit. It is not represented as a complete OEM carburetor assembly. Brand names and reference numbers are used only to identify the intended applications.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eConfirm the engine model, horsepower, stroke, and reference number before purchase.\u003c\/li\u003e\n    \u003cli\u003eDo not install seals that are damaged, contaminated, or visibly different from the parts being replaced.\u003c\/li\u003e\n    \u003cli\u003eUse appropriate ventilation and fire-safety precautions when working with gasoline-powered equipment.\u003c\/li\u003e\n    \u003cli\u003eAfter installation, inspect for fuel leaks before starting and operating the outboard.\u003c\/li\u003e\n    \u003cli\u003eYear, serial-number, shaft-length, package-quantity, weight, and warranty information was not specified for this product and is therefore not claimed here.\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 Parts Focus\u003c\/strong\u003e — Practical replacement parts for outboard maintenance and repair.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product descriptions emphasize engine model, horsepower, stroke, and reference-number matching.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eService-Ready Information\u003c\/strong\u003e — Clear installation and verification guidance helps you select the correct replacement part.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723791765819,"sku":"17CR008","price":24.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/17CR008-1.jpg?v=1763031891"},{"product_id":"carburetor-fits-tohatsu-nissan-2-5hp-3-5hp-2-stroke-replaces-3f0-03100-4-3d5-03100","title":"Carburetor for Tohatsu \u0026 Nissan 2.5HP and 3.5HP 2-Stroke Outboards – Replaces 3F0-03100-4 and 3D5-03100","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  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis is a direct-replacement aftermarket \u003cstrong\u003ecarburetor assembly\u003c\/strong\u003e for selected Tohatsu and Nissan 2-stroke outboard applications. The listed applications include 2.5HP and 3.5HP engines, with fitment depending on the exact engine model, production year, and—where applicable—serial-number range.\u003c\/p\u003e\n  \u003cp\u003eThis carburetor is listed as a replacement for the following Tohatsu references: \u003cstrong\u003e3F0-03100-4\u003c\/strong\u003e, \u003cstrong\u003e3F0-03100-3\u003c\/strong\u003e, \u003cstrong\u003e3F0-03100-2\u003c\/strong\u003e, \u003cstrong\u003e3F0-03100-1\u003c\/strong\u003e, \u003cstrong\u003e3F0-03100-0\u003c\/strong\u003e, \u003cstrong\u003e3D5-03100-5\u003c\/strong\u003e, \u003cstrong\u003e3D5-03100-4\u003c\/strong\u003e, \u003cstrong\u003e3D5-03100-3\u003c\/strong\u003e, and \u003cstrong\u003e3D5-03100-2\u003c\/strong\u003e. Always compare the original carburetor, mounting arrangement, connections, and engine identification information before ordering.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eComplete carburetor assembly for compatible small 2-stroke outboards.\u003c\/li\u003e\n    \u003cli\u003eDesigned as a direct replacement for the listed applications and reference numbers.\u003c\/li\u003e\n    \u003cli\u003eSuitable for gasoline-fueled marine engines when the application is confirmed.\u003c\/li\u003e\n    \u003cli\u003ePackage includes one carburetor assembly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eThese manufacturer reference numbers are provided for cross-reference purposes. A reference number alone does not replace confirmation of the complete engine model and applicable year or serial range.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Cross-Reference\"\u003e\n      \u003cthead\u003e\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\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003ctd\u003eReplacement reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-3\u003c\/td\u003e\n\u003ctd\u003ePrevious reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-2\u003c\/td\u003e\n\u003ctd\u003ePrevious reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-1\u003c\/td\u003e\n\u003ctd\u003ePrevious reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-0\u003c\/td\u003e\n\u003ctd\u003ePrevious reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3D5-03100-5\u003c\/td\u003e\n\u003ctd\u003eCross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3D5-03100-4\u003c\/td\u003e\n\u003ctd\u003eCross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3D5-03100-3\u003c\/td\u003e\n\u003ctd\u003eCross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3D5-03100-2\u003c\/td\u003e\n\u003ctd\u003eCross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0031003M\u003c\/td\u003e\n\u003ctd\u003eAlternate-format reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0031002M\u003c\/td\u003e\n\u003ctd\u003eAlternate-format reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0031001M\u003c\/td\u003e\n\u003ctd\u003eAlternate-format reference\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3F0031000M\u003c\/td\u003e\n\u003ctd\u003eAlternate-format reference\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm the complete model designation and year of your engine before ordering. The model, horsepower, stroke, and year conditions must match the application shown below.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Tohatsu and Nissan Engine 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\u003eYears\u003c\/th\u003e\n\u003cth\u003eReference\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002 and earlier\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002 and earlier\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003eM3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002 and earlier\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2002 and earlier\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5A2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eNS3.5B2\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005\u003c\/td\u003e\n\u003ctd\u003e3F0-03100-4\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003eSome Mercury 2-stroke applications are identified by serial number. Locate the serial number on the transom bracket or engine identification tag and compare it with the ranges below before ordering.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Mercury Engine Compatibility\"\u003e\n      \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eSerial-Number Condition\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e017000 and higher\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e0A855097 through 0G710612\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e3.3\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e0D901217 and higher\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eCarburetor assembly\u003c\/dd\u003e\n    \u003cdt\u003eApplication\u003c\/dt\u003e\n    \u003cdd\u003eSelected small gasoline outboard engines\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eDirect replacement when model, year, serial number, and connections match\u003c\/dd\u003e\n    \u003cdt\u003eEngine Type\u003c\/dt\u003e\n    \u003cdd\u003e2-stroke outboard applications listed above\u003c\/dd\u003e\n    \u003cdt\u003eFuel Type\u003c\/dt\u003e\n    \u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\n  \u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n  \u003cul\u003e\u003cli\u003e1 x Carburetor assembly\u003c\/li\u003e\u003c\/ul\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eShut off the fuel supply and allow the engine to cool completely before beginning work.\u003c\/li\u003e\n    \u003cli\u003eRemove the engine cover and airbox or intake components as necessary to access the carburetor.\u003c\/li\u003e\n    \u003cli\u003eRecord the routing and connection points of the fuel lines, throttle linkage, and choke linkage.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the fuel lines and linkages, then remove the carburetor mounting hardware.\u003c\/li\u003e\n    \u003cli\u003eClean the intake mounting surface and remove old gasket material without allowing debris to enter the intake.\u003c\/li\u003e\n    \u003cli\u003eInstall the replacement carburetor with the correct gasket or sealing components for the engine application.\u003c\/li\u003e\n    \u003cli\u003eTighten the mounting hardware evenly according to the engine manufacturer's service instructions.\u003c\/li\u003e\n    \u003cli\u003eReconnect the fuel lines, throttle linkage, and choke linkage in their original positions.\u003c\/li\u003e\n    \u003cli\u003eReinstall the airbox and engine cover, then inspect all fuel connections before starting the engine.\u003c\/li\u003e\n    \u003cli\u003eAfter starting, check for fuel leaks and verify throttle response and idle operation. Adjust only as permitted by the engine manufacturer's service procedure.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm that this carburetor fits my engine?\u003c\/summary\u003e\n    \u003cp\u003eCompare the engine brand, complete model designation, horsepower, stroke, production year, and serial number where applicable with the compatibility tables. Also compare the original carburetor's mounting pattern, fuel connections, linkages, and reference number.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are common signs of a failing carburetor?\u003c\/summary\u003e\n    \u003cp\u003eCommon symptoms include difficult starting, rough idle, stalling, hesitation during acceleration, poor fuel delivery, flooding, or fuel leakage. These symptoms can also result from contaminated fuel, blocked fuel lines, ignition faults, or other engine problems, so diagnose the complete fuel system before replacing parts.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this replace an OEM carburetor?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is for an aftermarket replacement carburetor assembly. The reference numbers are provided for identification and cross-reference; confirm the complete application before installation.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes the carburetor require adjustment?\u003c\/summary\u003e\n    \u003cp\u003eAdjustment requirements depend on the engine and carburetor design. Follow the manufacturer's service procedure for idle-speed or mixture adjustments, and do not change settings unless the engine documentation permits it.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow can I help prevent carburetor problems?\u003c\/summary\u003e\n    \u003cp\u003eUse clean, suitable fuel; keep water and contaminants out of the fuel system; inspect fuel lines and filters; and follow the manufacturer's storage procedure, including fuel-system preparation for extended off-season storage.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat if my model appears compatible but the parts look different?\u003c\/summary\u003e\n    \u003cp\u003eDo not install the part if the mounting points, linkages, fuel connections, or overall configuration differ from the original. Contact the seller with the engine model, serial number, and clear photographs of the original carburetor for application assistance.\u003c\/p\u003e\n  \u003c\/details\u003e\n\n  \u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify the engine model, year, serial number, reference number, and physical configuration before ordering.\u003c\/li\u003e\n    \u003cli\u003eDisconnect the fuel supply and work in a well-ventilated area away from ignition sources.\u003c\/li\u003e\n    \u003cli\u003eUse appropriate marine-engine service procedures and replace damaged gaskets, fuel lines, or clamps as required.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement component, not an original manufacturer part.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended when the required service procedure or engine specifications are unfamiliar.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eMarine replacement parts for recreational and service applications.\u003c\/li\u003e\n    \u003cli\u003eProduct information organized around engine model and application details.\u003c\/li\u003e\n    \u003cli\u003eSupport available for fitment questions when the engine model and serial information are provided.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723799499067,"sku":"JLM17CA3F0","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Carburetor_for_Tohatsu_Nissan_2_Stroke_M_NS_25_35_HP_Outboard_Models_3F0-03100-4_3D5-03100_-_JLM_MARINE-8288312.jpg?v=1763032118"}],"url":"https:\/\/seasierra.com\/collections\/mercury-2-stroke-2-5-3-5hp-outboard-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}