{"title":"EMP 20HP Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"padding:16px; border:1px solid #e5e7eb; border-radius:8px;\"\u003e\n  \u003cp\u003eThis page supports EMP 20HP outboard engines and helps you find compatible replacement parts and practical service information. Below you’ll find maintenance tips, common replacement parts, and troubleshooting guidance. You can also browse the main Suzuki collection for brand-specific components. Scroll to the bottom of this page to start browsing parts for this engine. On collection pages, use the Filter \u0026amp; Sort controls to narrow results by horsepower, year range, and part category\/section.\u003c\/p\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki\" style=\"display:inline-block; padding:10px 14px; background:#1f2937; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Suzuki Parts\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"padding:12px 0;\"\u003e\n  \u003ch2\u003eHow to Identify Your 20HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eNameplate location: Look for the ID\/serial plate on the transom clamp bracket or swivel bracket. Record the full model code and serial number.\u003c\/li\u003e\n    \u003cli\u003eModel code and suffix: Letters often indicate shaft length (S\/L\/XL), control type (tiller vs. remote), and revision\/year codes. Note all suffixes to confirm parts.\u003c\/li\u003e\n    \u003cli\u003e2‑Stroke vs. 4‑Stroke cues: 2‑strokes may have an external oil tank or premix requirement; 4‑strokes have an engine oil dipstick, oil filter, and specified oil capacity under the cowling.\u003c\/li\u003e\n    \u003cli\u003eOther identifiers: Note electric start vs. manual start, and whether the motor uses carburetors or EFI—these affect ignition, fuel, and service parts.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"padding:12px 0;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003eTypical 20HP 2‑Stroke Twin\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 style=\"padding:8px 0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eInline 2‑cylinder, carbureted 2‑stroke; manual or electric start; tiller or remote control.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003e20HP 2‑stroke models from major OEMs (examples across brands). EMP offers cross‑reference service parts for these applications.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eLight weight, quick throttle response, simple routine service.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eConfirm whether your engine is premix or oil‑injected; impeller service annually; keep plugs fresh and fuel clean.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eTypical 20HP 4‑Stroke Twin\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 style=\"padding:8px 0;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eInline 2‑cylinder 4‑stroke, carbureted or EFI; manual or electric start; tiller or remote.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003e20HP 4‑stroke models across major OEMs; EMP cross‑references popular service items (filters, water pump kits, anodes, etc.).\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eLow fuel consumption, quiet operation, clean emissions.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eChange engine oil and filter on schedule; check valve clearance per manual; impeller service annually or 100 hrs.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"service-kits\" style=\"padding:12px 0;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for 20HP-class outboards. Always follow the official service manual for your specific model and operating 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 #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 style=\"padding:8px 0;\"\u003eEngine oil + filter (4‑Stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eInitial 20 hrs, then every 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eUse marine 4‑stroke oil grade per OEM; replace filter with each oil change.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\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:8px 0;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eInspect for water intrusion (milky oil) or metal; renew sealing washers.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki\"\u003eSuzuki Parts Collection\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eInspect every 100 hrs; replace as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eCheck gap and insulator color; replace if fouled or worn.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\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 0;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eEvery 100 hrs or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eReplace inline and\/or under‑cowl filters; drain separator bowls.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\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 0;\"\u003eWater pump impeller \/ kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eAnnually or 100 hrs (sooner in sandy\/silty water)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eRestore cooling performance; inspect housing and key.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-water-pump-repair-kits\"\u003eSuzuki Water Pump Repair Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eAnodes (internal \u0026amp; external)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eInspect every 50–100 hrs; replace when 50% depleted\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eUse correct alloy (salt\/fresh\/brackish); clean bonding points.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-anodes\"\u003eSuzuki Anodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003e2‑Stroke oiling (if applicable)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eEvery trip (premix) or 100 hrs (oil injection inspection)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eVerify premix ratio per OEM or service the oil tank, lines, and pump on injected models.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki\"\u003eSuzuki Parts Collection\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"common-parts\" style=\"padding:12px 0;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service — \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-service-maintenance-kits\"\u003eSuzuki Service \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System — \u003ca href=\"https:\/\/seasierra.com\/collections\/water-pumps\"\u003eWater Pumps\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 \/ Electrical — \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\"\u003eElectrical Items\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion — \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-propellers\"\u003eSuzuki Propellers\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\u003eGearcase Seals — \u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki-lower-unit-seal-kits\"\u003eSuzuki Lower Unit Seal Kits\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"padding:12px 0;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #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 style=\"padding:8px 0;\"\u003eWeak tell‑tale stream or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eInspect intake screens for debris; verify water pump impeller condition; confirm thermostat operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eWater pump kit, thermostat, intake screen, housing gaskets\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003ePoor acceleration \/ power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eReplace fuel filters; check primer bulb and fuel lines; inspect prop for damage; verify spark plugs.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eFuel filter, fuel pump, spark plugs, propeller\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eHard starting \/ rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eCheck choke\/enrichment function; look for air leaks at fuel connections; verify plug gap and condition; ensure fresh fuel.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eSpark plugs, fuel hoses, inline filter, enrichment components\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eExcessive smoke (2‑Stroke)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eConfirm correct premix ratio or oil pump setting; verify thermostat (engine reaching temperature); replace fouled plugs.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eSpark plugs, thermostat, oil lines\/pump components\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eDrain gear oil, check for water intrusion (milky) or metal; inspect prop shaft seal and drain\/fill plug gaskets.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 0;\"\u003eLower unit seal kit, bearings, sealing washers\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"faq\" style=\"padding:12px 0;\"\u003e\n  \u003ch2\u003eFAQs\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eAre parts interchangeable between different years or platforms?\u003c\/summary\u003e\n    \u003cp\u003eSome EMP service parts cross between years and models, but many items are platform‑specific. Always confirm the exact model code, serial prefix, and whether your engine is 2‑stroke or 4‑stroke before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eReplace the impeller annually or every 100 hours, and sooner if operating in sandy or shallow conditions or if the tell‑tale stream weakens. A full water pump kit is recommended if the housing shows wear.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow often should gear oil be changed?\u003c\/summary\u003e\n    \u003cp\u003eChange gear oil every 100 hours or annually. Inspect for water (milky color) and metal. If contamination is present, service seals and recheck after a short interval.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information do I need to confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eHave your full model code and serial number, shaft length, 2‑stroke vs 4‑stroke, start\/control type (manual\/electric, tiller\/remote), and approximate year. Photos of the nameplate and the part to replace are very helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"padding:16px; border-top:1px solid #e5e7eb;\"\u003e\n  \u003cp\u003eReady to find parts by horsepower, year, and model? Browse the main Suzuki collection for compatible 20HP outboard components.\u003c\/p\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/suzuki\" style=\"display:inline-block; padding:10px 14px; background:#2563eb; color:#fff; text-decoration:none; border-radius:6px;\"\u003eBrowse All Suzuki Parts\u003c\/a\u003e\u003c\/p\u003e\n  \u003cp style=\"color:#6b7280; font-size:0.95em;\"\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":[],"url":"https:\/\/seasierra.com\/collections\/emp-20hp-outboard-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}