{"title":"Johnson 35-300HP 2-Stroke Outboard Marine Engine","description":"\u003csection id=\"hero\" style=\"padding:16px;border:1px solid #e5e7eb;border-radius:8px;\"\u003e\n  \u003cp\u003eThis page is for Johnson 2‑Stroke 35–300HP outboard engines. It helps you find compatible parts and service information, including maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Johnson\/Evinrude collection. Scroll to the bottom of this page to start browsing parts for this engine, and remember that on the collection page you can use the Filter \u0026amp; Sort controls to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude\" style=\"display:inline-block;padding:10px 14px;background:#0ea5e9;color:#fff;text-decoration:none;border-radius:6px;\"\u003eBrowse All Johnson\/Evinrude Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 35–300HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate location: Look on the transom bracket or swivel bracket for the model and serial plate.\u003c\/li\u003e\n    \u003cli\u003eReading the code: Johnson model codes use letters and numbers to indicate features such as electric start (E), remote control (R), shaft length (L\/XL), and a code for the model year.\u003c\/li\u003e\n    \u003cli\u003ePlatform clues: \n      \u003cul\u003e\n        \u003cli\u003e35–40HP: typically 2‑cylinder carbureted twins.\u003c\/li\u003e\n        \u003cli\u003e60–75HP: commonly inline‑3 two‑strokes.\u003c\/li\u003e\n        \u003cli\u003e85–140HP: V4 two‑strokes.\u003c\/li\u003e\n        \u003cli\u003e150–300HP: V6 two‑strokes (some later models use direct injection).\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003eOil system: Many 2‑strokes are premix; others use an oil injection (VRO) system—verify whether your engine requires premix or has an oil reservoir and pump.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n\n  \u003ch3\u003eInline‑2 (35–40HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eConfiguration\u003c\/td\u003e\n        \u003ctd\u003e2‑cylinder carbureted 2‑stroke, lightweight and simple to service.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCommon Models\u003c\/td\u003e\n        \u003ctd\u003eExamples from late 1970s: 35E\/35R series, 40E\/40R series (various shaft and control options).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAdvantages\u003c\/td\u003e\n        \u003ctd\u003eLow weight, easy starting, straightforward maintenance.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eNotes\u003c\/td\u003e\n        \u003ctd\u003eCooling and ignition tune‑ups (impeller, plugs) restore most performance issues.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eInline‑3 (60–75HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eConfiguration\u003c\/td\u003e\n        \u003ctd\u003e3‑cylinder carbureted 2‑stroke with strong mid‑range torque.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCommon Models\u003c\/td\u003e\n        \u003ctd\u003eExamples include 65ES\/65EL and 70EL series (vary by year and shaft length).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAdvantages\u003c\/td\u003e\n        \u003ctd\u003eGood balance of power and weight; popular for fishing and light runabouts.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eNotes\u003c\/td\u003e\n        \u003ctd\u003eKeep fuel system clean (filters and carb service) to prevent lean surging.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV4 (85–140HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eConfiguration\u003c\/td\u003e\n        \u003ctd\u003eV4 carbureted 2‑stroke; broad parts support and strong aftermarket.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCommon Models\u003c\/td\u003e\n        \u003ctd\u003eExamples: 85ETL, 115ETL, 140TL variants (model codes vary by start\/control\/shaft).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAdvantages\u003c\/td\u003e\n        \u003ctd\u003eExcellent hole‑shot, durable gearcases, wide propeller options.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eNotes\u003c\/td\u003e\n        \u003ctd\u003eVerify gear ratio and prop hub style when selecting propellers and hardware.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eV6 (150–300HP)\u003c\/h3\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eConfiguration\u003c\/td\u003e\n        \u003ctd\u003eV6 2‑stroke; earlier carbureted units and later direct‑injected variants.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCommon Models\u003c\/td\u003e\n        \u003ctd\u003eExamples: 150TL, 175TL, 200TL, 235TL series; later 300HP DI models in select years.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAdvantages\u003c\/td\u003e\n        \u003ctd\u003eHigh output for heavy hulls, robust charging systems, broad rigging support.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eNotes\u003c\/td\u003e\n        \u003ctd\u003eUse correct thermostats and poppet valves; ensure cooling flow is within spec before high‑load operation.\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=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for Johnson 2‑stroke 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 #e5e7eb;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd\u003eInspect for water intrusion (milky oil) and metal debris.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-service-maintenance-kits\"\u003eJohnson\/Evinrude\/OMC Service \u0026amp; Maintenance Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd\u003eUse correct heat range and gap; replace fouled plugs.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\"\u003eSpark Plug\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd\u003eReplace more often with ethanol fuel or dirty tanks.\u003c\/td\u003e\n        \u003ctd\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\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd\u003eEvery 2–3 seasons (sooner if weak tell‑tale)\u003c\/td\u003e\n        \u003ctd\u003eCritical for cooling; check housing and key.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-water-pump-repair-kits\"\u003eJohnson\/Evinrude\/OMC Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAnodes (zincs)\u003c\/td\u003e\n        \u003ctd\u003eInspect each haul‑out; replace when 50% worn\u003c\/td\u003e\n        \u003ctd\u003eMatch water type (salt\/brackish\/fresh). Ensure bonding is intact.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-anodes\"\u003eJohnson\/Evinrude\/OMC Anodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOil injection (VRO) hoses and filter\u003c\/td\u003e\n        \u003ctd\u003eAnnually\u003c\/td\u003e\n        \u003ctd\u003eInspect lines for brittleness\/leaks; verify alarm and prime functionality.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/hoses\"\u003eHoses\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003ePropeller \u0026amp; hardware\u003c\/td\u003e\n        \u003ctd\u003eSeasonally\u003c\/td\u003e\n        \u003ctd\u003eCheck hub integrity, cotter\/lock hardware, and remove line from shaft.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-propellers\"\u003eJohnson\/Evinrude\/OMC Propellers\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eLower unit seal kit (if water in gear oil)\u003c\/td\u003e\n        \u003ctd\u003eAs needed\u003c\/td\u003e\n        \u003ctd\u003ePressure\/vacuum test gearcase; replace seals and retest.\u003c\/td\u003e\n        \u003ctd\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-lower-unit-seal-kits\"\u003eJohnson\/Evinrude\/OMC Lower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003cp style=\"font-size:12px;color:#6b7280;margin-top:8px;\"\u003e*Intervals assume typical recreational use. Severe duty (high hours, sand\/silt, heavy loads) may require shorter intervals.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-service-maintenance-kits\"\u003eJohnson\/Evinrude\/OMC Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-water-pump-repair-kits\"\u003eWater Pump Repair Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eGearcase \u0026amp; Seals: \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude-omc-lower-unit-seal-kits\"\u003eLower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion: \u003ca href=\"https:\/\/seasierra.com\/collections\/bombardier-propellers\"\u003eJohnson\/Evinrude\/OMC Propellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\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\/bombardier-anodes\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left;border-bottom:1px solid #e5e7eb;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eWeak tell‑tale or overheat alarm\u003c\/td\u003e\n        \u003ctd\u003eInspect intake screens, thermostat, and water pump impeller.\u003c\/td\u003e\n        \u003ctd\u003eWater pump kit, thermostat, intake screen\/grommets.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd\u003eProp hub slip, clogged fuel filter, dirty carbs, or timing issues.\u003c\/td\u003e\n        \u003ctd\u003ePropeller\/hub, fuel filter, carburetor rebuild parts, spark plugs.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd\u003eVerify choke\/primer operation, plug condition, and fuel quality.\u003c\/td\u003e\n        \u003ctd\u003eSpark plugs, primer\/choke components, fuel filter, fuel line\/primer bulb.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eExcessive smoke (2‑stroke)\u003c\/td\u003e\n        \u003ctd\u003eCheck premix ratio or oil‑injection calibration; look for stuck float\/needle.\u003c\/td\u003e\n        \u003ctd\u003eFuel system parts, oil injection hoses\/filters, carburetor needle\/seat.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGearcase noise or milky oil\u003c\/td\u003e\n        \u003ctd\u003eDrain and inspect gear oil; pressure\/vacuum test for leaking seals.\u003c\/td\u003e\n        \u003ctd\u003eLower unit seal kit, gear oil, driveshaft\/prop shaft seals, shift shaft seal.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"margin-top:24px;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome Johnson parts interchange across years within the same platform (e.g., many V4 cooling parts). However, changes in shaft length, ignition, carburation, and gear ratios can affect compatibility. Confirm using your exact model code and serial.\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 2–3 seasons, or immediately if the tell‑tale weakens, the engine overheats, or you operate in sandy\/silty water.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should the lower unit gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eChange gear oil every 100 hours or annually, and inspect for water intrusion (milky appearance) or metal shavings that indicate seal or gear wear.\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 full model code from the nameplate, serial number, shaft length, control type (tiller\/remote), and any notable options (electric start, oil injection). Photos of the nameplate and the part area help ensure an exact match.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"margin-top:24px;padding:16px;border:1px solid #e5e7eb;border-radius:8px;\"\u003e\n  \u003cp\u003eReady to find parts for your Johnson 2‑Stroke 35–300HP outboard? Browse the main Johnson\/Evinrude collection by horsepower, year, and model.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/johnson-evinrude\" style=\"display:inline-block;margin-top:8px;padding:10px 14px;background:#0ea5e9;color:#fff;text-decoration:none;border-radius:6px;\"\u003eShop Johnson\/Evinrude Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px;color:#6b7280;font-size:12px;\"\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":"inline-fuel-filter-fits-yamaha-9-9-40-hp-replaces-65w-24251-00-00-65w-24251-10-00","title":"Inline Fuel Filter – Yamaha\/Mercury Mariner F15–F40 4-Stroke \u0026 Evinrude E-TEC 15–30 HP 2-Stroke","description":"\u003csection\u003e\n\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003einline fuel filter\u003c\/strong\u003e is designed for selected Yamaha and Mercury Mariner F15–F40 four-stroke outboards and Evinrude E-TEC 15–30 HP two-stroke outboards. It installs in the fuel line to help filter contaminants before fuel reaches the engine.\u003c\/p\u003e\n\u003cp\u003eThe filter is listed as an aftermarket replacement for \u003cstrong\u003eSierra 18-7830\u003c\/strong\u003e and corresponds to the Yamaha, Mercury\/Mariner, and OMC reference numbers shown below. Always compare the reference number and complete engine details before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInline fuel-filter design for outboard fuel systems.\u003c\/li\u003e\n  \u003cli\u003eListed as a 5\/16-inch fuel filter.\u003c\/li\u003e\n  \u003cli\u003eSingle replacement filter; no additional fittings, clamps, or hoses are included.\u003c\/li\u003e\n  \u003cli\u003eAftermarket replacement part; not manufactured by Yamaha, Mercury, Mariner, Evinrude, Johnson, OMC, or Sierra.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eThese are customer-facing OEM and aftermarket reference numbers associated with this replacement filter. A reference number alone does not replace checking the engine model, year, horsepower, and stroke.\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\n      \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-7830\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e65W-24251-00\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e65W-24251-00-00\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e65W-24251-10-00\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003e65W-242511-000\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e35-164941\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e35-816296\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e35-816296-1\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e35-816296T1\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e35-8162961\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e35-816396Q1\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e35-816296B2\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e35-816296B1\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e35-134301\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e398327\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e0777714\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e0175226\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e3852224\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\u003eFitment is limited to the applications listed by the product catalog. Keep the engine brand, model family, horsepower, stroke, and year together when confirming compatibility.\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\u003eEngine Family\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 Numbers\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eEvinrude\u003c\/td\u003e\n        \u003ctd\u003eE-TEC\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2010–2015\u003c\/td\u003e\n        \u003ctd\u003e18-7830\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eEvinrude\u003c\/td\u003e\n        \u003ctd\u003eE-TEC\u003c\/td\u003e\n        \u003ctd\u003e25–30\u003c\/td\u003e\n        \u003ctd\u003e2-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2009–2015\u003c\/td\u003e\n        \u003ctd\u003e18-7830\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF15\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998–2004\u003c\/td\u003e\n        \u003ctd\u003e65W-24251-00; 65W-24251-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF25\u003c\/td\u003e\n        \u003ctd\u003e25\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998–2004\u003c\/td\u003e\n        \u003ctd\u003e65W-24251-00; 65W-24251-00-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF30\u003c\/td\u003e\n        \u003ctd\u003e30\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2001–2009\u003c\/td\u003e\n        \u003ctd\u003e65W-24251-10-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eYamaha\u003c\/td\u003e\n        \u003ctd\u003eF40\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2000–2008\u003c\/td\u003e\n        \u003ctd\u003e65W-24251-10-00\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Mariner\u003c\/td\u003e\n        \u003ctd\u003eF15\u003c\/td\u003e\n        \u003ctd\u003e15\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998–2004\u003c\/td\u003e\n        \u003ctd\u003e35-164941 and related listed references\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Mariner\u003c\/td\u003e\n        \u003ctd\u003eF25\u003c\/td\u003e\n        \u003ctd\u003e25\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998–2004\u003c\/td\u003e\n        \u003ctd\u003e35-164941 and related listed references\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Mariner\u003c\/td\u003e\n        \u003ctd\u003eF30\u003c\/td\u003e\n        \u003ctd\u003e30\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2001–2009\u003c\/td\u003e\n        \u003ctd\u003e35-816296 series references\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Mariner\u003c\/td\u003e\n        \u003ctd\u003eF40\u003c\/td\u003e\n        \u003ctd\u003e40\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2000–2008\u003c\/td\u003e\n        \u003ctd\u003e35-816296 series references\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\u003eInline fuel filter\u003c\/dd\u003e\n  \u003cdt\u003eFuel System Application\u003c\/dt\u003e\n  \u003cdd\u003eOutboard fuel-line service applications listed above\u003c\/dd\u003e\n  \u003cdt\u003eNominal Filter Size\u003c\/dt\u003e\n  \u003cdd\u003e5\/16 inch\u003c\/dd\u003e\n  \u003cdt\u003eAftermarket Reference\u003c\/dt\u003e\n  \u003cdd\u003eSierra 18-7830\u003c\/dd\u003e\n  \u003cdt\u003eInstallation Position\u003c\/dt\u003e\n  \u003cdd\u003eIn-line between the fuel tank and engine, following the fuel-flow direction marked on the filter\u003c\/dd\u003e\n  \u003cdt\u003ePackage Type\u003c\/dt\u003e\n  \u003cdd\u003eSingle replacement fuel filter\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\u003cstrong\u003e1 ×\u003c\/strong\u003e Inline fuel filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFuel hose, clamps, mounting hardware, and other accessories are not included unless separately stated.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eTurn the engine off, remove the ignition key, and allow the engine to cool.\u003c\/li\u003e\n  \u003cli\u003eWork outdoors or in a well-ventilated area away from flames, sparks, and other ignition sources.\u003c\/li\u003e\n  \u003cli\u003eFollow the engine manufacturer’s service instructions for relieving fuel-system pressure, if applicable.\u003c\/li\u003e\n  \u003cli\u003ePlace an approved catch container and absorbent material beneath the filter before disconnecting the fuel line.\u003c\/li\u003e\n  \u003cli\u003eMove the hose clamps away from the filter connections and carefully remove the fuel hoses.\u003c\/li\u003e\n  \u003cli\u003eNote the fuel-flow direction before removing the old filter.\u003c\/li\u003e\n  \u003cli\u003eInstall the replacement filter with fuel flow directed toward the engine.\u003c\/li\u003e\n  \u003cli\u003ePush the hoses fully onto the barbed connections and secure them with suitable clamps.\u003c\/li\u003e\n  \u003cli\u003ePrime the fuel system according to the engine manufacturer’s procedure.\u003c\/li\u003e\n  \u003cli\u003eInspect all connections for leaks before starting the engine, then check again after startup.\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 filter fits my engine?\u003c\/summary\u003e\n  \u003cp\u003eCompare your original reference number and verify the engine brand, model family, horsepower, stroke, and year against the compatibility table. Do not rely on horsepower alone because two engines with the same horsepower can use different fuel-system parts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhich reference numbers are covered?\u003c\/summary\u003e\n  \u003cp\u003eThe listed references include Yamaha 65W-24251-00, 65W-24251-00-00, 65W-24251-10-00, and 65W-242511-000; Mercury references in the 35-816296 series and 35-164941; OMC references 398327, 0777714, 0175226, and 3852224; and aftermarket reference Sierra 18-7830.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhere is the filter installed?\u003c\/summary\u003e\n  \u003cp\u003eIt is installed in-line in the fuel hose between the fuel tank and the outboard engine. Follow the flow direction marked on the filter and secure both hose connections properly.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat symptoms can indicate a restricted fuel filter?\u003c\/summary\u003e\n  \u003cp\u003ePossible symptoms include hard starting, hesitation, stalling, reduced power, or inconsistent engine operation. Inspect the complete fuel system before replacing parts, since contaminated fuel, damaged hoses, blocked vents, and pump problems can produce similar symptoms.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this an OEM filter?\u003c\/summary\u003e\n  \u003cp\u003eNo. This is an aftermarket replacement filter. The manufacturer and brand names shown are used only to identify compatible engine applications and reference numbers.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes the package include clamps or fuel hose?\u003c\/summary\u003e\n  \u003cp\u003eNo. The package contains one replacement inline fuel filter. Existing hoses and clamps must be reusable and suitable, or replaced separately as needed.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should the filter be replaced?\u003c\/summary\u003e\n  \u003cp\u003eReplacement intervals vary with engine use, fuel quality, storage conditions, and the engine manufacturer’s maintenance schedule. Replace the filter when scheduled by the service manual or when inspection indicates contamination, damage, or restricted fuel flow.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Information\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eGasoline is flammable. Stop the engine and eliminate ignition sources before servicing the fuel system.\u003c\/li\u003e\n  \u003cli\u003eUse only fuel hose and clamps appropriate for the application.\u003c\/li\u003e\n  \u003cli\u003eCheck for leaks before operating the boat.\u003c\/li\u003e\n  \u003cli\u003eVerify the original filter, reference number, engine model, year, horsepower, and stroke before ordering.\u003c\/li\u003e\n  \u003cli\u003eThis replacement is intended for the listed outboard applications; compatibility with other engines is not established by a matching number alone.\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 — Practical aftermarket components for routine outboard maintenance and repair.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication-Focused Listings\u003c\/strong\u003e — Product information is organized around reference numbers and engine fitment details.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService Support\u003c\/strong\u003e — Review the complete application information before installation and contact support if you need help comparing your original part.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50723967500603,"sku":"24FF302","price":20.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/24FF302_1.jpg?v=1763038685"}],"url":"https:\/\/seasierra.com\/collections\/johnson-35-300hp-2-stroke-outboard-marine-engine.oembed","provider":"SeaSierra","version":"1.0","type":"link"}