{"title":"RECMAR 50HP 4-Stroke Outboard Marine Engine Parts","description":"\u003csection id=\"hero\" style=\"max-width: 1000px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003cp\u003eThis page is tailored for RECMAR 4‑Stroke 50 HP outboard engines. Use it to find compatible replacement parts and practical service information. Below you’ll find maintenance tips, common replacement categories, and troubleshooting guidance. You can also browse our main RECMAR parts collection. Scroll to the bottom to start browsing parts for this engine, and remember you can use the “Filter \u0026amp; Sort” controls on the collection page to narrow results by horsepower, year range, and part category.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\" style=\"display:inline-block; padding:10px 16px; background:#004a7f; color:#fff; text-decoration:none; border-radius:4px;\"\u003eBrowse All RECMAR Parts\u003c\/a\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"identify-model\" style=\"max-width: 1000px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eHow to Identify Your 50 HP Model\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eLocate the nameplate\/serial label on the transom bracket or swivel bracket. Record the full model code and serial number.\u003c\/li\u003e\n    \u003cli\u003eDecode the suffixes: shaft length (S\/M\/L\/XL), control type (tiller vs remote), and charging\/trim options may be indicated by letters at the end of the code.\u003c\/li\u003e\n    \u003cli\u003eFor 4‑stroke models, note the oil filter location and cowl decals; these often help distinguish platform generations.\u003c\/li\u003e\n    \u003cli\u003eDifferent 50 HP platforms exist (inline‑3 vs inline‑4). Cylinder count and intake layout help determine which parts fit.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"engine-overview\" style=\"max-width: 1000px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003ePlatform Overview\u003c\/h2\u003e\n  \u003ch3\u003eInline‑3 EFI 4‑Stroke (common across several manufacturers)\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:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e3‑cylinder inline 4‑stroke, EFI; compact, light, smooth at mid‑range.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eTypical 50 HP EFI 4‑stroke inline‑3 variants from major brands.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGood fuel economy, simple service access, strong low‑to‑mid torque.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eMany service parts (plugs, anodes, water pump kits) are platform‑specific—confirm by model code\/serial.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch3\u003eInline‑4 EFI 4‑Stroke (seen on some 50–60 HP families)\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:8px;\"\u003eFeature\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfiguration\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e4‑cylinder inline 4‑stroke, EFI; often shares components with 60 HP siblings.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCommon Models\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eTypical 50 HP EFI 4‑stroke inline‑4 variants in certain model families.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAdvantages\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eVery smooth at idle, refined top‑end, robust charging on some versions.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eNotes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWater pump kits and anodes may match the 60 HP platform; verify by model code and gearcase size.\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: 1000px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eRoutine Maintenance \u0026amp; Service Parts\u003c\/h2\u003e\n  \u003cp\u003eIntervals below are general guidelines for 4‑stroke outboards; always follow your official service manual and local 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 #ccc; padding:8px;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eInterval*\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eRemarks\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eParts Link\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEngine oil + filter\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWarm engine before draining; replace crush washer; verify capacity.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/oil-filters\" style=\"text-decoration:none; color:#004a7f;\"\u003eOil Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGear oil (lower unit)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eEvery 100 hours or annually\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect for water\/milkiness or metal; replace drain plug seals.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/lower-unit-seal-kits\" style=\"text-decoration:none; color:#004a7f;\"\u003eLower Unit Seal Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSpark plugs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect 100 hrs; replace 200 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck gap and color; replace if fouled or worn.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/spark-plug\" style=\"text-decoration:none; color:#004a7f;\"\u003eSpark Plugs\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eFuel filter \/ water separator\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect 50 hrs; replace 100 hrs\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eDrain or replace more often with ethanol fuel or contamination.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\" style=\"text-decoration:none; color:#004a7f;\"\u003eFuel Filters\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWater pump impeller\/kit\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e200 hours or every 2 seasons\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eShorten interval for sandy\/silty or high‑temp operation.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/water-pump-impeller-rebuild-kits\" style=\"text-decoration:none; color:#004a7f;\"\u003eImpeller Rebuild Kits\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAnodes (internal \u0026amp; external)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect every 50 hrs; replace as needed\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eUse correct material (aluminum, zinc, or magnesium) for your waters.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\" style=\"text-decoration:none; color:#004a7f;\"\u003eAnodes\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eDrive\/alternator belt (where equipped)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect 100 hrs; replace if cracked\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck tension and pulley condition; replace if glazed or frayed.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003e\u003ca href=\"https:\/\/seasierra.com\/collections\/belt\" style=\"text-decoration:none; color:#004a7f;\"\u003eBelts\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: 1000px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eFrequently Used Parts Categories\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eRoutine Service: \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\" style=\"text-decoration:none; color:#004a7f;\"\u003eService \u0026amp; Maintenance Kits\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCooling System: \u003ca href=\"https:\/\/seasierra.com\/collections\/water-pumps\" style=\"text-decoration:none; color:#004a7f;\"\u003eWater Pumps\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/impellers\" style=\"text-decoration:none; color:#004a7f;\"\u003eImpellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eFuel System: \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-filters-1\" style=\"text-decoration:none; color:#004a7f;\"\u003eFuel Filters\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/fuel-pumps\" style=\"text-decoration:none; color:#004a7f;\"\u003eFuel Pumps\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eIgnition \/ Electrical: \u003ca href=\"https:\/\/seasierra.com\/collections\/electrical-items\" style=\"text-decoration:none; color:#004a7f;\"\u003eElectrical Items\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/starters\" style=\"text-decoration:none; color:#004a7f;\"\u003eStarters\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eCorrosion Protection: \u003ca href=\"https:\/\/seasierra.com\/collections\/anodes\" style=\"text-decoration:none; color:#004a7f;\"\u003eAnodes\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePropulsion: \u003ca href=\"https:\/\/seasierra.com\/collections\/propellers\" style=\"text-decoration:none; color:#004a7f;\"\u003ePropellers\u003c\/a\u003e\n\u003c\/li\u003e\n    \u003cli\u003eSeals \u0026amp; Gaskets: \u003ca href=\"https:\/\/seasierra.com\/collections\/gaskets\" style=\"text-decoration:none; color:#004a7f;\"\u003eGaskets\u003c\/a\u003e and \u003ca href=\"https:\/\/seasierra.com\/collections\/oil-seals\" style=\"text-decoration:none; color:#004a7f;\"\u003eOil Seals\u003c\/a\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"troubleshooting\" style=\"max-width: 1000px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003ch2\u003eCommon Symptoms \u0026amp; Quick Checks\u003c\/h2\u003e\n  \u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eSymptom\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eCheck First\u003c\/th\u003e\n        \u003cth style=\"text-align:left; border-bottom:1px solid #ccc; padding:8px;\"\u003eRelated Parts\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWeak tell‑tale stream or overheat alarm\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eInspect intake screens for debris; verify impeller age; test thermostat.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eWater pump kit, impeller, thermostat, intake screen, anodes.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eHard starting or rough idle\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eConfirm fresh fuel; check spark plug condition\/gap; inspect fuel filter for water.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eSpark plugs, fuel filter, injectors, hoses, idle air components.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePoor acceleration or power loss\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eCheck propeller for damage\/cavitation; verify fuel delivery and compression.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003ePropeller, fuel pump, filters, ignition components.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eGearcase noise or metal in gear oil\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eDrain and inspect oil; check for water intrusion; verify correct oil level.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLower unit seal kit, bearings, shims, drain plug seals.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding:8px;\"\u003eBattery not charging\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eLoad‑test battery; inspect belt (if equipped); check rectifier\/voltage regulator connections.\u003c\/td\u003e\n        \u003ctd style=\"padding:8px;\"\u003eAlternator, rectifier\/regulator, belt, electrical connectors.\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: 1000px; margin: 0 auto; padding: 16px;\"\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 50 HP 4‑stroke lines share filters, anodes, and pump kits across multiple years, but platform differences (inline‑3 vs inline‑4, gearcase size, ignition variants) affect compatibility. Always confirm with your exact model code and serial.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhen should the impeller be replaced?\u003c\/summary\u003e\n    \u003cp\u003eAs a rule, every 200 hours or two seasons—whichever comes first. Shorten the interval if operating in sandy\/silty water, running in weeds, or if the engine overheated.\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 lower unit oil every 100 hours or annually. Inspect immediately if you see milky oil (water intrusion) or metal shavings.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat information helps confirm part compatibility?\u003c\/summary\u003e\n    \u003cp\u003eProvide the brand, full model code, serial number, approximate year, shaft length, and control type. Photos of the nameplate and the part you’re replacing are extremely helpful.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"cta\" style=\"max-width: 1000px; margin: 0 auto; padding: 16px;\"\u003e\n  \u003cp\u003eReady to find parts? Browse our main RECMAR parts collection and filter by category to zero in on the components you need for your 50 HP 4‑stroke.\u003c\/p\u003e\n  \u003ca href=\"https:\/\/seasierra.com\/collections\/service-maintenance-kits\" style=\"display:inline-block; padding:10px 16px; background:#004a7f; color:#fff; text-decoration:none; border-radius:4px;\"\u003eShop RECMAR Parts\u003c\/a\u003e\n  \u003cp style=\"margin-top:8px; 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":[],"url":"https:\/\/seasierra.com\/collections\/recmar-50hp-4-stroke-outboard-marine-engine-parts.oembed","provider":"SeaSierra","version":"1.0","type":"link"}