{"id":16063,"date":"2024-10-03T08:28:05","date_gmt":"2024-10-03T07:28:05","guid":{"rendered":"https:\/\/dale-sailing.co.uk\/chandlery\/?post_type=product&#038;p=16063"},"modified":"2024-10-03T08:35:14","modified_gmt":"2024-10-03T07:35:14","slug":"yanmar-6lt640-marine-diesel-engine-641hp","status":"publish","type":"product","link":"https:\/\/dale-sailing.co.uk\/chandlery\/product\/yanmar-6lt640-marine-diesel-engine-641hp\/","title":{"rendered":"Yanmar 6LT640 Marine Diesel Engine &#8211; 641hp"},"content":{"rendered":"<p>The <strong>Yanmar 6LT640 Marine Diesel Engine<\/strong> is a high-performance, 6-cylinder, 4-stroke engine delivering <strong>641hp at 1900 rpm<\/strong>. Designed for commercial and heavy-duty marine vessels, this engine is built to provide powerful, reliable performance for various marine applications, including fast patrol boats, fishing vessels, and workboats. Featuring <strong>turbocharging<\/strong> and <strong>intercooling<\/strong>, the 6LT640 ensures optimal power delivery while maintaining fuel efficiency.<\/p>\n<p>With <strong>common rail direct injection (CR)<\/strong> technology, this engine offers precise fuel control, resulting in better fuel economy, lower emissions, and smooth, efficient power output. The <strong>freshwater cooling system<\/strong> with a heat exchanger provides consistent engine temperature control, enhancing performance and engine longevity in harsh marine environments.<\/p>\n<p>This robust marine engine complies with the latest <strong>IMO Tier II<\/strong> emissions standards, ensuring minimal environmental impact without compromising power. Its compact design and reliable performance make it an excellent choice for demanding marine conditions.<\/p>\n<p><strong>Technical Specifications:<\/strong><\/p>\n<ul>\n<li><strong>Engine Model:<\/strong> 6LT640<\/li>\n<li><strong>Engine Type:<\/strong> 6-cylinder, 4-stroke, vertical water-cooled diesel engine<\/li>\n<li><strong>Displacement:<\/strong> 17.22 litres<\/li>\n<li><strong>Bore x Stroke:<\/strong> 135 mm x 150 mm<\/li>\n<li><strong>Power Output:<\/strong> 641hp (471 kW) at 1900 rpm<\/li>\n<li><strong>Compression Ratio:<\/strong> 15.3:1<\/li>\n<li><strong>Fuel System:<\/strong> Common rail direct injection (CR)<\/li>\n<li><strong>Turbocharged:<\/strong> Yes, with intercooling<\/li>\n<li><strong>Cooling System:<\/strong> Freshwater cooling with heat exchanger<\/li>\n<li><strong>Alternator Output:<\/strong> 24V &#8211; 60A<\/li>\n<li><strong>Lubrication System:<\/strong> Forced lubrication by gear pump<\/li>\n<li><strong>Oil Capacity:<\/strong> 68 litres<\/li>\n<li><strong>Starting System:<\/strong> Electric start<\/li>\n<li><strong>Direction of Rotation:<\/strong> Counterclockwise (viewed from flywheel)<\/li>\n<li><strong>Weight:<\/strong> 2,500 kg (dry weight)<\/li>\n<li><strong>Gearbox Options:<\/strong> Various options available based on the application<\/li>\n<li><strong>Exhaust System:<\/strong> Water-cooled exhaust manifold<\/li>\n<li><strong>Emission Compliance:<\/strong> IMO Tier II compliant<\/li>\n<\/ul>\n<p><strong>Key Features:<\/strong><\/p>\n<ul>\n<li><strong>Turbocharging with Intercooling:<\/strong> Enhances power and fuel efficiency, delivering high output in a compact design.<\/li>\n<li><strong>Common Rail Direct Injection (CR):<\/strong> Ensures precise fuel control, leading to improved fuel economy and reduced emissions.<\/li>\n<li><strong>Freshwater Cooling System:<\/strong> Protects the engine from corrosion and ensures optimal operating temperatures.<\/li>\n<li><strong>Robust Design:<\/strong> Built to withstand demanding marine environments, suitable for commercial and heavy-duty applications.<\/li>\n<li><strong>Low Emissions:<\/strong> Meets IMO Tier II regulations, ensuring environmentally-friendly operation.<\/li>\n<li><strong>High Power Output:<\/strong> 641hp provides sufficient power for high-speed and heavy-duty marine vessels.<\/li>\n<\/ul>\n<p><strong>Yanmar<\/strong> is a globally recognized leader in marine diesel engines, offering durable and efficient solutions for commercial and recreational vessels. The <strong>Yanmar 6LT640<\/strong> is part of Yanmar\u2019s high-performance engine lineup, delivering powerful, reliable, and environmentally-friendly performance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Yanmar 6LT640 Marine Diesel Engine offers 641hp with turbocharging, common rail technology, and freshwater cooling. Ideal for commercial and heavy-duty marine applications. Available at Dale Sailing.<\/p>\n<p><a href=\"https:\/\/www.yanmar.com\/marine\/product\/engines\/6lt640\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-14968\" src=\"https:\/\/dale-sailing.co.uk\/chandlery\/wp-content\/uploads\/2024\/07\/Yanmar-Logo-150x150.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n","protected":false},"featured_media":16045,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[2398],"product_tag":[1719],"class_list":["post-16063","product","type-product","status-publish","has-post-thumbnail","product_cat-inboard-engines-engine-propulsion","product_tag-yanmar","first","3_5_days","taxable","shipping-taxable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Yanmar 6LT640 Marine Diesel Engine - 641hp - Dale Sailing<\/title>\n<meta name=\"description\" content=\"Yanmar 6LT640 Marine Diesel Engine - 641hp, turbocharged, common rail direct injection, freshwater-cooled engine for commercial vessels. 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