{"title":"Mercury 4-Stroke 3.5-5HP Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"max-width:900px;padding:16px 12px;\"\u003e\n  \u003cp\u003eThis page is built for Mercury 4-Stroke 3.5–5HP outboard engines. Use it to find compatible parts and service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Mercury collection at any time. Scroll to the bottom of the 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.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block;margin-top:8px;padding:10px 14px;background:#0b57d0;color:#fff;text-decoration:none;border-radius:6px;\"\u003eBrowse All Mercury Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width:900px;padding:16px 12px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 3.5–5HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the nameplate\/serial tag on the transom bracket or swivel bracket. Record the serial number and any model code suffix.\u003c\/li\u003e\n    \u003cli\u003eModel code suffixes indicate options such as shaft length (short 15\" vs. long 20\") and starting\/fuel configurations.\u003c\/li\u003e\n    \u003cli\u003eFor these portable 4‑stroke engines, 3.5HP typically uses a smaller single‑cylinder block, while 4\/5HP share a larger single‑cylinder platform. Note this when selecting gaskets, carburetor parts, and water pump kits.\u003c\/li\u003e\n    \u003cli\u003eConfirm whether your engine uses an internal tank only or also supports an external fuel tank—fuel line and filter choices may differ.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"max-width:900px;padding:16px 12px;\"\u003e\n  \u003ch2\u003eEngine Overview\u003c\/h2\u003e\n  \u003ch3\u003e3.5HP 4‑Stroke 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 #ccc;padding:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:6px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eSingle‑cylinder, carbureted 4‑stroke; manual start; lightweight portable.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eMercury 3.5HP 4‑Stroke variants (short\/long shaft; internal tank).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eVery portable, simple maintenance, low fuel consumption.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eSome parts (carb, gaskets, impeller) differ from the 4\/5HP platform—match by serial\/model.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003e4HP \u0026amp; 5HP 4‑Stroke 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 #ccc;padding:6px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:6px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eSingle‑cylinder, carbureted 4‑stroke; some models support external fuel tanks.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eMercury 4HP 4‑Stroke and 5HP 4‑Stroke (short\/long shaft; optional external fuel connection).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eSmooth low‑rpm torque, efficient trolling, simple service routine.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e4HP and 5HP often share core components; prop pitch, carb calibration, and jetting may differ.\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:900px;padding:16px 12px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for small 4‑stroke portable outboards. Always follow your engine’s official service manual and adjust for heavy use or harsh conditions.\u003c\/p\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:6px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:6px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:6px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:6px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eEngine oil \u0026amp; oil filter\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eAfter 20 hours (initial), then every 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eUse FC‑W 10W‑30\/25W‑40 as specified; some small models use a screen instead of a canister filter.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\"\u003eOil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eInspect for water intrusion (milky oil) and metal shavings; replace gaskets when servicing.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\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:6px;border-bottom:1px solid #eee;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eInspect every 100 hours; replace as needed or every 200 hours\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eGap to spec; fouling often indicates fuel quality or idle mixture issues.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eFuel filter \/ inline filter\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eReplace more often with ethanol fuel or if stored seasonally.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eEvery 2–3 seasons (sooner in sandy\/silty water)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eLoss of telltale stream or overheat at idle often points to an impeller issue.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\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:6px;border-bottom:1px solid #eee;\"\u003eAnodes (zincs)\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eInspect every haul‑out; replace when 50% consumed\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eUse alloy appropriate for your waters (salt, brackish, fresh).\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"max-width:900px;padding:16px 12px;\"\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 Service: \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\u003eIgnition \u0026amp; Tune‑Up: \u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plugs\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\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\"\u003ePropellers\u003c\/a\u003e \u0026amp; \u003ca href=\"https:\/\/seasierra.com\/collections\/propeller-guards\"\u003ePropeller Guards\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eAccessories \u0026amp; Setup: \u003ca href=\"https:\/\/seasierra.com\/collections\/outboard-hydrofoil-stabilizers\"\u003eOutboard Hydrofoil Stabilizers\u003c\/a\u003e \u0026amp; \u003ca href=\"https:\/\/seasierra.com\/collections\/boat-accessories\"\u003eBoat Accessories\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width:900px;padding:16px 12px;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:6px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:6px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #ccc;padding:6px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eWeak telltale stream \/ overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eInspect intake screen for debris; verify thermostat operation; check impeller age\/condition.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eWater pump kit, thermostat, intake screen\/gasket\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eUse fresh fuel; open tank vent; verify choke\/primer; clean carb idle jet; inspect spark plug gap.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eFuel filter, carb gaskets\/jets, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eCheck propeller for dings or hub slip; look for fuel restriction; confirm throttle linkage.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003ePropeller, fuel filter, spark plugs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eGearcase noise \/ metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eVerify correct gear oil level; inspect for milky oil (water intrusion); pressure test for leaking seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:6px;border-bottom:1px solid #eee;\"\u003eLower unit seal kit, bearings, drain\/fill plug gaskets\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:900px;padding:16px 12px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre 3.5HP parts interchangeable with 4HP or 5HP?\u003c\/summary\u003e\n    \u003cp\u003eNot always. These engines use different displacement single‑cylinder platforms. Some hardware overlaps, but carburetor components, gaskets, and water pump parts can differ. Match parts by serial number and model code.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should I replace the impeller?\u003c\/summary\u003e\n    \u003cp\u003eEvery 2–3 seasons for typical use, or sooner if you notice a weak telltale stream, overheating at idle, or you operate in sandy\/silty water. Inspect annually during lower unit service.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eAt least annually or every 100 hours. Change immediately if water intrusion is suspected (milky oil) or after an impact to the prop or lower unit.\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\u003eProvide the engine serial number, model code, horsepower, shaft length, and a brief description of the issue. Photos of the nameplate and the existing part help us verify fitment quickly.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width:900px;padding:16px 12px;\"\u003e\n  \u003cp\u003eReady to find parts for your Mercury 4‑Stroke 3.5–5HP? Browse the main Mercury collection and narrow by horsepower, year, and model.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/mercury-outboard-parts\" style=\"display:inline-block;margin:6px 0 8px 0;padding:10px 14px;background:#0b57d0;color:#fff;text-decoration:none;border-radius:6px;\"\u003eShop Mercury Outboard Parts\u003c\/a\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-fits-tohatsu-nissan-3-5-5-hp-replaces-3r1-03200-1-18-7365","title":"Carburetor for Tohatsu\/Nissan 4–5 HP and Mercury Mariner 4–6 HP 4-Stroke Outboards","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap; 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\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003ecarburetor assembly\u003c\/strong\u003e is intended for selected Tohatsu and Nissan 4-stroke 4 HP and 5 HP outboards from 1999 onward. Company fitment information also lists selected Mercury Mariner 4-stroke 4 HP, 5 HP, and 6 HP outboards from 2000 onward, along with a Mercury 3.5 HP carburetor application. Because carburetor fitment can vary by model, market, emissions configuration, and serial number, compare the original carburetor and reference number before ordering.\u003c\/p\u003e\n\u003cp\u003eThe company reference data lists Tohatsu numbers \u003cstrong\u003e3R1-03200-1\u003c\/strong\u003e, \u003cstrong\u003e3AS-03200-0\u003c\/strong\u003e, \u003cstrong\u003e3R1-03200-1-00\u003c\/strong\u003e, \u003cstrong\u003e3GV-03200-0\u003c\/strong\u003e, \u003cstrong\u003e3R1032001M\u003c\/strong\u003e, \u003cstrong\u003e3R1032000M\u003c\/strong\u003e, \u003cstrong\u003e3AS032000M\u003c\/strong\u003e, \u003cstrong\u003e3GV032000M\u003c\/strong\u003e, and \u003cstrong\u003e3H6032000M\u003c\/strong\u003e. Mercury and Mariner reference data lists numbers including \u003cstrong\u003e3303-879818A1\u003c\/strong\u003e, \u003cstrong\u003e3303-8M0053669\u003c\/strong\u003e, \u003cstrong\u003e803819T1\u003c\/strong\u003e, \u003cstrong\u003e803819T2\u003c\/strong\u003e, \u003cstrong\u003e876958A1\u003c\/strong\u003e, \u003cstrong\u003e879659A1\u003c\/strong\u003e, \u003cstrong\u003e879817A1\u003c\/strong\u003e, \u003cstrong\u003e803522T\u003c\/strong\u003e, \u003cstrong\u003e803522T1\u003c\/strong\u003e, \u003cstrong\u003e803522T2\u003c\/strong\u003e, \u003cstrong\u003e803522T01\u003c\/strong\u003e, \u003cstrong\u003e803522T02\u003c\/strong\u003e, \u003cstrong\u003e803522T03\u003c\/strong\u003e, \u003cstrong\u003e803522T04-T06\u003c\/strong\u003e, \u003cstrong\u003e803522A04\u003c\/strong\u003e, \u003cstrong\u003e8M0053670\u003c\/strong\u003e, \u003cstrong\u003e853720T25\u003c\/strong\u003e, \u003cstrong\u003e8M0167269\u003c\/strong\u003e, \u003cstrong\u003e889246T10\u003c\/strong\u003e, \u003cstrong\u003e898103T51\u003c\/strong\u003e, and \u003cstrong\u003e8M0121978\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement carburetor assembly for gasoline-fueled marine outboards.\u003c\/li\u003e\n  \u003cli\u003eDesigned for the corresponding original mounting and fuel-system arrangement.\u003c\/li\u003e\n  \u003cli\u003eConfirm the exact model, horsepower, stroke, market, and serial-number range before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe following numbers are reference listings associated with this carburetor assembly. A number appearing in the matrix does not by itself confirm fitment for every engine in a horsepower range.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eReference Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3R1-03200-1; 3R1-03200-1-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3AS-03200-0; 3GV-03200-0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTohatsu\u003c\/td\u003e\n\u003ctd\u003e3R1032001M; 3R1032000M; 3AS032000M; 3GV032000M; 3H6032000M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e3303-879818A1; 3303-8M0053669\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e803819T1; 803819T2; 876958A1; 879659A1; 879817A1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e803522T; 803522T1; 803522T2; 803522T01; 803522T02; 803522T03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e803522T04-T06; 803522A04; 8M0053670\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003e853720T25; 8M0167269; 889246T10; 898103T51; 8M0121978\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\u003eUse the conditions below together with the part number on your original carburetor. The available company data provides horsepower, stroke, brand, and year-range guidance, but does not provide a complete model-by-model or serial-number fitment list for every reference number.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n\u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYear Guidance\u003c\/th\u003e\n\u003cth\u003eFitment 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\u003eSelected 4 HP and 5 HP outboards\u003c\/td\u003e\n\u003ctd\u003e4–5 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1999 and later\u003c\/td\u003e\n\u003ctd\u003eVerify the exact model and original carburetor number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSelected 4 HP and 5 HP outboards\u003c\/td\u003e\n\u003ctd\u003e4–5 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1999 and later\u003c\/td\u003e\n\u003ctd\u003eVerify the exact model and original carburetor number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury \/ Mariner\u003c\/td\u003e\n\u003ctd\u003eSelected 4 HP, 5 HP, and 6 HP outboards\u003c\/td\u003e\n\u003ctd\u003e4–6 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2000 and later\u003c\/td\u003e\n\u003ctd\u003eMarket and serial-number variations may apply.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003eSelected Mercury 3.5 HP applications\u003c\/td\u003e\n\u003ctd\u003e3.5 HP\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eConfirm the exact original part number before purchase.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\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 gasoline-fueled marine outboards\u003c\/dd\u003e\n  \u003cdt\u003eEngine Type\u003c\/dt\u003e\n\u003cdd\u003e4-stroke outboards\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eReplacement installation using the original mounting and connection arrangement where fitment is confirmed\u003c\/dd\u003e\n  \u003cdt\u003eBrand Applications\u003c\/dt\u003e\n\u003cdd\u003eTohatsu, Nissan, Mercury, and Mariner applications listed above\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eNot specified in the company product record\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003eRefer to the seller's current warranty and return terms\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Carburetor assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGasket note:\u003c\/strong\u003e The company reference data identifies Tohatsu\/Nissan gasket reference \u003cstrong\u003e3H6-02011-0\u003c\/strong\u003e and Mercury gasket reference \u003cstrong\u003e803508013\u003c\/strong\u003e. Gasket inclusion is not confirmed in the product package data; check the existing gasket and replace it as required for your installation.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eConfirm the engine brand, exact model, horsepower, 4-stroke configuration, year or serial range, and original carburetor reference number before beginning work.\u003c\/li\u003e\n  \u003cli\u003eMake sure the engine is switched off and cool. Follow the engine manufacturer's safety procedures and disconnect the battery where applicable.\u003c\/li\u003e\n  \u003cli\u003eTurn off the fuel supply and disconnect the fuel line carefully. Keep an approved container or absorbent material available for fuel spillage.\u003c\/li\u003e\n  \u003cli\u003ePhotograph or label the throttle linkage, springs, fuel hose, and any other connections before removing the original carburetor.\u003c\/li\u003e\n  \u003cli\u003eRemove the original carburetor and gasket. Clean the mounting surface without allowing debris to enter the intake.\u003c\/li\u003e\n  \u003cli\u003eInstall the correct gasket for the confirmed application, position the replacement carburetor, and tighten fasteners according to the engine manufacturer's service instructions.\u003c\/li\u003e\n  \u003cli\u003eReconnect the linkage, springs, fuel hose, and other connections exactly as configured on the original assembly.\u003c\/li\u003e\n  \u003cli\u003eRestore the fuel supply and inspect carefully for leaks before starting the engine.\u003c\/li\u003e\n  \u003cli\u003eStart and test the engine in a safe, well-ventilated marine-service environment. Check idle, throttle response, and fuel leakage. Do not alter factory adjustment settings unless required by the 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 know if the carburetor may need replacement?\u003c\/summary\u003e\n  \u003cp\u003eHard starting, rough idle, stalling, poor acceleration, flooding, black exhaust smoke, or fuel leakage can be signs of a carburetion problem. Check fuel quality, fuel delivery, ignition, and linkage condition first. If cleaning or service does not correct the issue, compare the original carburetor number and mounting arrangement with this replacement.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this fit every Tohatsu, Nissan, Mercury, or Mariner engine from 3.5 to 6 HP?\u003c\/summary\u003e\n  \u003cp\u003eNo. The listed horsepower range is not a universal confirmation. Fitment depends on brand, exact model, 4-stroke configuration, production year, market, emissions version, serial number, and the original carburetor reference. Confirm all applicable conditions before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs a gasket included?\u003c\/summary\u003e\n  \u003cp\u003eThe company product record identifies gasket references but does not confirm that a gasket is included in the package. Plan to inspect the existing gasket and obtain the correct replacement gasket if needed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this 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 fitment comparison; they do not mean that the replacement is manufactured by the original engine brand.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill adjustment be needed after installation?\u003c\/summary\u003e\n  \u003cp\u003eAdjustment or synchronization may be required depending on the engine and service procedure. Follow the manufacturer's instructions and do not change mixture or idle settings without the correct specifications.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat maintenance is recommended?\u003c\/summary\u003e\n  \u003cp\u003eUse clean, fresh fuel and keep the fuel system free of contamination. For extended storage, follow the engine manufacturer's fuel-stabilization and carburetor-draining instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCompare the replacement with the original carburetor, including mounting points, linkage arrangement, hose connections, and reference number.\u003c\/li\u003e\n  \u003cli\u003eDo not rely on horsepower alone to confirm fitment.\u003c\/li\u003e\n  \u003cli\u003eWork in a well-ventilated area away from ignition sources, and clean up fuel spills immediately.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended if you are not familiar with outboard fuel-system service.\u003c\/li\u003e\n  \u003cli\u003eStop operation immediately if fuel leakage, uncontrolled engine speed, or abnormal running occurs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMarine replacement parts selected for practical repair and maintenance applications.\u003c\/li\u003e\n  \u003cli\u003eProduct information is organized around verified reference numbers and stated application conditions.\u003c\/li\u003e\n  \u003cli\u003eFor best results, provide the complete engine model and original part number when requesting fitment assistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723963765051,"sku":"19CA3R1-G","price":58.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Carburetor_for_Tohatsu_Nissan_4_5_HP__3R1-03200-1_18-7365_-_JLM_MARINE-8285955.jpg?v=1763038511"},{"product_id":"carburetor-fits-tohatsu-nissan-4-5-hp-4-stroke-replaces-3r1-03200-1-18-7608","title":"Replacement Carburetor for Tohatsu\/Nissan 4–5 HP 4-Stroke Outboards — Replaces 3R1-03200-1, Sierra 18-7608","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis replacement \u003cstrong\u003ecarburetor assembly\u003c\/strong\u003e is intended for selected Tohatsu and Nissan 4-stroke outboard engines in the 4–5 HP range. It is listed as a replacement for Tohatsu part number \u003cstrong\u003e3R1-03200-1\u003c\/strong\u003e and Sierra reference \u003cstrong\u003e18-7608\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFitment can vary by model, production year, market and serial-number range. Before ordering, compare the part number on your original carburetor and confirm the complete engine model details against the compatibility information below.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAftermarket replacement carburetor assembly.\u003c\/li\u003e\n  \u003cli\u003eDesigned for direct replacement of the corresponding original assembly when the part-number and engine details match.\u003c\/li\u003e\n  \u003cli\u003eSuitable for gasoline-powered marine outboard applications covered by the confirmed fitment.\u003c\/li\u003e\n  \u003cli\u003eCarburetor assembly only; gasket and other installation hardware are not included unless specifically stated.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThe references below identify the replacement application. Part-number matching alone does not confirm every model, year or serial-number range.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \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\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eTohatsu\u003c\/td\u003e\n        \u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n        \u003ctd\u003eOriginal-equipment reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-7608\u003c\/td\u003e\n        \u003ctd\u003eAftermarket 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\u003eThis replacement is associated with selected Tohatsu and Nissan 4-stroke outboards in the 4–5 HP class. Use the original carburetor number and the engine identification label to confirm fitment before purchase.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel Family\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eFitment Condition\u003c\/th\u003e\n        \u003cth\u003eReference Part No.\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\u003eSelected 4–5 HP models\u003c\/td\u003e\n        \u003ctd\u003e4–5 HP\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003eConfirm model, year and serial number\u003c\/td\u003e\n        \u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eNissan\u003c\/td\u003e\n        \u003ctd\u003eSelected 4–5 HP models\u003c\/td\u003e\n        \u003ctd\u003e4–5 HP\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003eConfirm model, year and serial number\u003c\/td\u003e\n        \u003ctd\u003e3R1-03200-1\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\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 gasoline outboard engines\u003c\/dd\u003e\n  \u003cdt\u003eEngine Class\u003c\/dt\u003e\n  \u003cdd\u003e4–5 HP\u003c\/dd\u003e\n  \u003cdt\u003eEngine Type\u003c\/dt\u003e\n  \u003cdd\u003e4-Stroke\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n  \u003cdd\u003eDirect replacement when fitment is confirmed\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n  \u003cdd\u003eDirect mount\u003c\/dd\u003e\n  \u003cdt\u003eIncluded Gasket\u003c\/dt\u003e\n  \u003cdd\u003eNot included\u003c\/dd\u003e\n  \u003cdt\u003ePart-Number References\u003c\/dt\u003e\n  \u003cdd\u003eTohatsu 3R1-03200-1; Sierra 18-7608\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 mounting gasket, fuel-line components and adjustment tools are not included unless separately specified. Inspect the original hardware and replace worn or damaged sealing components as required.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eReview the engine service information and verify the replacement part number before beginning work.\u003c\/li\u003e\n  \u003cli\u003eTurn off the fuel supply, disconnect the battery if applicable, and work in a well-ventilated area away from ignition sources.\u003c\/li\u003e\n  \u003cli\u003eRemove the air-intake components as required to access the carburetor.\u003c\/li\u003e\n  \u003cli\u003eLabel or photograph the throttle linkage, choke control and fuel-line positions before disconnecting them.\u003c\/li\u003e\n  \u003cli\u003eRemove the original carburetor and discard the old gasket if it is damaged or specified as single-use.\u003c\/li\u003e\n  \u003cli\u003eClean the mounting surfaces and install the replacement using a suitable gasket in good condition.\u003c\/li\u003e\n  \u003cli\u003eReconnect the fuel line, throttle linkage and choke control, then check that each moves freely.\u003c\/li\u003e\n  \u003cli\u003ePrime the fuel system, start the engine in accordance with the manufacturer’s procedure, and inspect carefully for fuel leaks.\u003c\/li\u003e\n  \u003cli\u003eSet idle speed or other adjustments only as specified in the applicable service information.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm that this carburetor fits my engine?\u003c\/summary\u003e\u003cp\u003eMatch the number on your original carburetor to Tohatsu 3R1-03200-1 or Sierra 18-7608, then confirm the engine brand, model, horsepower, 4-stroke configuration, year and serial-number range. If any of these details differ, obtain confirmation before ordering.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this listing include a gasket?\u003c\/summary\u003e\u003cp\u003eNo. This listing is for the carburetor assembly only. A gasket may need to be purchased separately unless your existing gasket is approved for reuse and remains undamaged.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this carburetor fit a 6 HP outboard?\u003c\/summary\u003e\u003cp\u003eDo not assume compatibility with a 6 HP engine. The listed application is selected 4–5 HP 4-stroke outboards. A 6 HP engine should be treated as unconfirmed unless its exact model and original part number match the replacement application.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat symptoms can indicate a carburetor problem?\u003c\/summary\u003e\u003cp\u003ePossible symptoms include hard starting, unstable idle, stalling, hesitation during acceleration, poor running under load, excessive fuel use and fuel leakage. These symptoms can also result from fuel contamination, ignition faults, restricted fuel delivery or incorrect adjustment.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill adjustment be required after installation?\u003c\/summary\u003e\u003cp\u003eFollow the applicable engine service procedure. Idle or mixture adjustment may be required, but do not change settings beyond the manufacturer’s specified range.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an OEM carburetor?\u003c\/summary\u003e\u003cp\u003eNo. This is an aftermarket replacement. It is intended to replace the corresponding original assembly when the part number and engine fitment are confirmed.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow often should a carburetor be replaced?\u003c\/summary\u003e\u003cp\u003eThere is no universal replacement interval. Regular fuel-system maintenance can help prevent deposits and corrosion. Replace the carburetor when cleaning and approved servicing cannot restore proper operation, or when the assembly is damaged or leaking.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat should I do if the part does not match my original?\u003c\/summary\u003e\u003cp\u003eDo not force installation or modify the mounting, linkage or fuel connections. Compare the part number and engine identification details, and contact support before installation if the configuration does not match.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify the original part number and complete engine identification before purchase.\u003c\/li\u003e\n  \u003cli\u003eUse only in the application for which fitment has been confirmed.\u003c\/li\u003e\n  \u003cli\u003eGasoline is flammable. Work in a ventilated area, keep the part away from flames and relieve fuel-system hazards before removal.\u003c\/li\u003e\n  \u003cli\u003eInspect all fuel connections after installation and stop immediately if leakage is observed.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended when you are not familiar with marine fuel systems or carburetor adjustment.\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 — We supply replacement components for a range of marine service applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment-Focused Listings\u003c\/strong\u003e — Verify the complete engine and part-number details before installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport for Installation Questions\u003c\/strong\u003e — Contact support if the replacement does not match the original configuration or application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723963797819,"sku":"JLM19CA3R1","price":58.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/Carburetor_for_Tohatsu_Nissan_4_5_HP__3R1-03200-1_18-7365_-_JLM_MARINE-8285955_bc95a394-8f8c-4740-b350-35d1b5c2a060.jpg?v=1763038513"}],"url":"https:\/\/seasierra.com\/collections\/mercury-4-stroke-3-5-5hp-outboard-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}