{"product_id":"mercury-300-hp-f300-l-xl-cxl-xxl-cms-4-zamanli-distan-takma-uzun-extra-uzun-ultra-uzun-saft-deniz-motoru","title":"Mercury 300 HP Electric Start Steering Trim and Tilt Extra Long Shaft Outboard Motor","description":"\u003cp\u003eThe Mercury \u003cstrong\u003eFourStroke 300 XL\u003c\/strong\u003e is a 4-stroke outboard marine engine designed for medium and large fiberglass, aluminum, or composite boats that require an ultra-long shaft. It features a 300 HP \/ 221 kW, 4600 cc V8 (8 Cylinder) engine. The FourStroke 300 XL with its 4600 cc V8 EFI FourStroke engine offers a balance of high power and fuel efficiency for large boats. This model, part of Mercury's main production line, stands out with its extensive service network and reliability advantages.\u003c\/p\u003e\n\n\u003ch2\u003eFourStroke 300 XL Series Features and Technology Advantages\u003c\/h2\u003e\n\u003cp\u003eThe V8 engine provides a wide power band and high torque at low RPM with EFI electronic injection, and stable power at high RPM. The stainless steel propeller and external fuel system are suitable for large boat use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eV8 (8 Cylinder) Engine (4600 cc):\u003c\/strong\u003e The V8 engine provides a wide power band and high torque at low RPM with EFI electronic injection, and stable power at high RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Long Shaft (635 mm (25\")):\u003c\/strong\u003e The propeller operates at optimal depth with the correct transom height.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEFI Electronic Injection:\u003c\/strong\u003e Easy cold start and consistent power output across the entire RPM range.\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eElectric Start:\u003c\/strong\u003e Instant activation with key or button — comfortable and quick starting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Trim and Tilt (Power Trim \u0026amp; Tilt):\u003c\/strong\u003e Adjust trim angle with a button while cruising — optimizes fuel efficiency; tilt to fully raise the engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Floater Fuel System:\u003c\/strong\u003e Connection for a large capacity external tank — range determined by user needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eUltra-Long Shaft — Which Boat Type Is It Suitable For?\u003c\/h2\u003e\n\u003cp\u003eAn ultra-long shaft (635 mm (25\")) keeps the propeller at an optimal depth on large yachts and professional boats with deep transom designs. Incorrect shaft selection can leave the propeller out of the water or scrape the bottom — measure your transom height before installation.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 HP \/ 221 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4600 cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCylinder Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV8 (8 Cylinders)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-stroke, 64° V8 block, DOHC, 32 valves, EFI electronic fuel injection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShaft Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUltra-Long Shaft \/ 635 mm (25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGear System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eF – N – R (Forward \/ Neutral \/ Reverse)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStarting System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrim System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectric Trim and Tilt (Power Trim \u0026amp; Tilt)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuel System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExternal floater system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight (Dry)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e239 KG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCMS Mechanical Throttle Lever\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFourStroke 300 XL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho Is This Engine For?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary engine for large fiberglass and composite boats:\u003c\/strong\u003e combination of high power and stainless steel propeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-distance offshore routes:\u003c\/strong\u003e EFI efficiency and external fuel system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual engine configuration:\u003c\/strong\u003e synchronized power with same series engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFishing and recreational use:\u003c\/strong\u003e low maintenance costs and extensive service network\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eMaintenance and Longevity\u003c\/h2\u003e\n\u003cp\u003e4-stroke Mercury engines operate trouble-free for many years with regular oil changes and end-of-season maintenance protocols. Impeller inspection for the water-cooled system should be done every 100 hours or every two seasons. Freshwater flush is mandatory after every use in saltwater.\u003c\/p\u003e\n\u003cp\u003eRelated maintenance categories: \u003ca href=\"\/en-us\/collections\/bakim-kiti\"\u003eMaintenance Kit\u003c\/a\u003e | \u003ca href=\"\/en-us\/collections\/motor-yagi\"\u003eEngine Oil\u003c\/a\u003e | \u003ca href=\"\/en-us\/collections\/impeller\"\u003eImpeller\u003c\/a\u003e | \u003ca href=\"\/en-us\/collections\/mercury-yedek-parca\"\u003eMercury Spare Parts\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat boat size is the Mercury FourStroke 300 HP engine suitable for?\u003c\/h3\u003e\n\u003cp\u003e300 HP power can suit different sizes depending on boat weight and type. General rule: 15–20 kg of boat weight per HP. Always check the maximum engine power recommended by the boat manufacturer.\u003c\/p\u003e\n\n\u003ch3\u003eWhat advantage does the EFI system offer over a carbureted engine?\u003c\/h3\u003e\n\u003cp\u003eEFI (Electronic Fuel Injection) does not require a primer pump or choke adjustment. It provides reliable starting in cold weather and at high altitudes, consistent power output, and lower fuel consumption compared to carbureted alternatives.\u003c\/p\u003e\n\n\u003ch3\u003eWhat are the Mercury FourStroke maintenance intervals?\u003c\/h3\u003e\n\u003cp\u003eOil change at the first 20 hours, then every 100 hours or once a season. Impeller inspection every two seasons. Freshwater flush is mandatory after every use in saltwater. End-of-season fuel system preservation is recommended.\u003c\/p\u003e\n\n\u003ch3\u003eWhich boat and brand types are compatible with the FourStroke 300 XL?\u003c\/h3\u003e\n\u003cp\u003eMercury outboard engines are compatible with many fiberglass, aluminum, and inflatable boat models thanks to their universal transom clamp or transom mounting system. The only criteria are your boat's 635 mm (25\") transom height and the maximum engine power approved by the manufacturer. You can get compatibility confirmation from Clever Marin by sharing your boat model.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Products and Categories\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-us\/collections\/mercury-distan-takma-motorlar\"\u003eMercury Outboard Motors\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-us\/collections\/mercury-urunleri\"\u003eMercury Marine Products\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-us\/collections\/mercury-yedek-parca\"\u003eMercury Spare Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-us\/collections\/fourstroke-175-300-hp\"\u003eMercury 175–300 HP FourStroke\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-us\/collections\/fourstroke-75-150hp-motorlar\"\u003eMercury 75–150 HP FourStroke\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-us\/collections\/distan-takma-motorlar\"\u003eOutboard Motors\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-us\/collections\/tekne-motorlari\"\u003eBoat Engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-us\/collections\/bakim-kiti\"\u003eMaintenance Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-us\/collections\/impeller\"\u003eImpeller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-us\/collections\/anot\"\u003eAnode\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eIs This the Right Configuration for Your Boat?\u003c\/h2\u003e\n\u003cp\u003eShare your boat model, transom height, and intended use — let's confirm together the suitability of the Mercury \u003cstrong\u003eFourStroke 300 XL\u003c\/strong\u003e engine for your boat and the correct shaft selection.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45476595663045,"sku":null,"price":1508999.99,"currency_code":"TRY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/9332\/8581\/files\/mercury-f300-l-xl-cxl-xxl-cms-uzun-extra-uzun-ultra-uzun-saft-distan-takma-deniz-motoru-f300cms.jpg?v=1765271618","url":"https:\/\/clevermarin.com\/en-us\/products\/mercury-300-hp-f300-l-xl-cxl-xxl-cms-4-zamanli-distan-takma-uzun-extra-uzun-ultra-uzun-saft-deniz-motoru","provider":"CLEVER MARIN","version":"1.0","type":"link"}