{"id":103659,"date":"2025-11-28T17:04:29","date_gmt":"2025-11-28T15:04:29","guid":{"rendered":"https:\/\/boat-service.ee\/pood\/uncategorized\/mercury-seapro-300-cms-hp\/"},"modified":"2025-11-28T17:04:29","modified_gmt":"2025-11-28T15:04:29","slug":"mercury-seapro-300-cms-hp","status":"publish","type":"product","link":"https:\/\/boat-service.ee\/en\/shop\/mootorid-en\/mercury-en\/mercury-seapro-en\/mercury-seapro-300-cms-hp\/","title":{"rendered":"Mercury SeaPro 300 CMS HP"},"content":{"rendered":"<h2>Mercury SeaPro 300 CMS \u2013 Built for Relentless Commercial Demands<\/h2>\n<p>\nThe <strong>Mercury SeaPro 300 CMS<\/strong> is a heavy-duty V8 outboard engineered for long working days,<br \/>\nharsh environments and continuous commercial operation. With its robust<br \/>\n<strong>4.6-litre V8 powerhead<\/strong> and commercial-grade components, it delivers exceptional durability,<br \/>\nhigh torque at low rpm and dependable performance when your livelihood depends on it.\n<\/p>\n<p>\nThe CMS version (<strong>Conventional MidSection<\/strong>) is designed to be the<br \/>\n<strong>lightest in its class<\/strong>, making it ideal for commercial boats that require<br \/>\nhigh power with reduced overall weight. It offers outstanding balance, efficient operation<br \/>\nand lower vibration levels than previous mid-section designs.\n<\/p>\n<h3>Main Features<\/h3>\n<ul>\n<li><strong>Adaptive Speed Control:<\/strong> Maintains engine rpm automatically even when load or water conditions change.<\/li>\n<li><strong>Idle Charge Battery Management:<\/strong> Boosts alternator output at idle when battery voltage drops.<\/li>\n<li><strong>Top-cowl Service Door:<\/strong> Allows quick oil checks and top-ups without removing the entire cowl.<\/li>\n<li><strong>Commercial-Grade Gearcase:<\/strong> Validated to last up to three times longer than recreational equivalents.<\/li>\n<li><strong>Exceptionally Quiet Operation:<\/strong> Tuned intake and exhaust combined with injector covers significantly reduce noise.<\/li>\n<li><strong>Lightest in Its Class:<\/strong> CMS models (200\u2013300 hp) provide excellent power-to-weight ratios.<\/li>\n<\/ul>\n<h3>Performance<\/h3>\n<ul>\n<li><strong>High-displacement 4.6L V8:<\/strong> Provides powerful low-end torque for heavy loads.<\/li>\n<li><strong>Reliable All-Day Operation:<\/strong> Engineered to run hard with reduced internal stress.<\/li>\n<li><strong>Compact, lightweight design:<\/strong> Enhances acceleration, handling and fuel efficiency.<\/li>\n<li><strong>Superior corrosion resistance:<\/strong> Durable coatings, proprietary alloys and freshwater flush system.<\/li>\n<li><strong>SmartCraft compatibility:<\/strong> Works seamlessly with VesselView, Active Trim, DTS and more.<\/li>\n<\/ul>\n<h3>SmartCraft\u00ae Features<\/h3>\n<ul>\n<li><strong>DTS \u2013 Digital Throttle &#038; Shift:<\/strong> Smooth shifting, instant response and quiet operation.<\/li>\n<li><strong>Active Trim:<\/strong> Automatic trim optimisation for performance and fuel savings.<\/li>\n<li><strong>VesselView Mobile:<\/strong> Wireless connection to mobile devices for engine monitoring and maintenance tracking.<\/li>\n<li><strong>SmartCraft Connect:<\/strong> Integration with Garmin and Raymarine multifunction displays.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\nThe <strong>Mercury SeaPro 300 CMS<\/strong> is a lightweight commercial-grade 4.6L V8 outboard delivering<br \/>\n300 hp of efficient, dependable power. Built for demanding daily operation, it features<br \/>\nAdaptive Speed Control, Idle Charge battery management, a commercial-duty gearcase and full<br \/>\nSmartCraft compatibility.\n<\/p>\n<h3>Technical Specifications<\/h3>\n<table>\n<tbody>\n<tr>\n<td>Model<\/td>\n<td>Mercury SeaPro 300 CMS<\/td>\n<\/tr>\n<tr>\n<td>Horsepower<\/td>\n<td>300 HP \/ 221 kW<\/td>\n<\/tr>\n<tr>\n<td>Engine type<\/td>\n<td>V8<\/td>\n<\/tr>\n<tr>\n<td>Displacement<\/td>\n<td>4.6 L<\/td>\n<\/tr>\n<tr>\n<td>Dry weight<\/td>\n<td>239 kg (lightest model)<\/td>\n<\/tr>\n<tr>\n<td>Alternator<\/td>\n<td>85 A \/ 1071 W (with Idle Charge)<\/td>\n<\/tr>\n<tr>\n<td>Fuel system<\/td>\n<td>Electronic Fuel Injection (MPI)<\/td>\n<\/tr>\n<tr>\n<td>Colour<\/td>\n<td>Black<\/td>\n<\/tr>\n<tr>\n<td>SmartCraft compatible<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Recommended fuel<\/td>\n<td>87 Octane minimum (R+M\/2) or 90 RON, up to 10% ethanol<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":103656,"template":"","meta":[],"product_brand":[3213],"product_cat":[3209],"product_tag":[],"class_list":{"0":"post-103659","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-mercury","7":"product_cat-mercury-seapro-en","8":"tm-no-options","10":"first","11":"instock","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-variable"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mercury SeaPro 300 CMS HP - Boat Service Estonia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/boat-service.ee\/en\/shop\/mootorid-en\/mercury-en\/mercury-seapro-en\/mercury-seapro-300-cms-hp\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mercury SeaPro 300 CMS HP - Boat Service Estonia\" \/>\n<meta property=\"og:description\" content=\"The Mercury SeaPro 300 CMS is a lightweight commercial-grade 4.6L V8 outboard delivering 300 hp of efficient, dependable power. Built for demanding daily operation, it features Adaptive Speed Control, Idle Charge battery management, a commercial-duty gearcase and full SmartCraft compatibility.  Technical Specifications    Model Mercury SeaPro 300 CMS   Horsepower 300 HP \/ 221 kW   Engine type V8   Displacement 4.6 L   Dry weight 239 kg (lightest model)   Alternator 85 A \/ 1071 W (with Idle Charge)   Fuel system Electronic Fuel Injection (MPI)   Colour Black   SmartCraft compatible Yes   Recommended fuel 87 Octane minimum (R+M\/2) or 90 RON, up to 10% ethanol\" \/>\n<meta property=\"og:url\" content=\"https:\/\/boat-service.ee\/en\/shop\/mootorid-en\/mercury-en\/mercury-seapro-en\/mercury-seapro-300-cms-hp\/\" \/>\n<meta property=\"og:site_name\" content=\"Boat Service Estonia\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/boatserviceestonia\" \/>\n<meta property=\"og:image\" content=\"https:\/\/boat-service.ee\/wp-content\/uploads\/2025\/11\/Mercury_SeaPro_300_CMS_hj_boatsericeestonia.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2097\" \/>\n\t<meta property=\"og:image:height\" content=\"2096\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/boat-service.ee\/en\/shop\/mootorid-en\/mercury-en\/mercury-seapro-en\/mercury-seapro-300-cms-hp\/\",\"url\":\"https:\/\/boat-service.ee\/en\/shop\/mootorid-en\/mercury-en\/mercury-seapro-en\/mercury-seapro-300-cms-hp\/\",\"name\":\"Mercury SeaPro 300 CMS HP - 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