Yanmar 6LY400 Marine Diesel Engine

DescriptionNew Yanmar 6LY400 Marine Inboard Diesel Engine 400HP Common Rail For SaleThe Yanmar 6LY400 Marine Inboard Diesel Engine 400HP Common Rail is a modern electronically controlled propulsion system built for vessel owners who need strong acceleration, efficient cruising, and dependable offshore performance. Commonly used in sport fishing boats, express cruisers, patrol vessels, fast leisure yachts, and repower projects, this engine delivers high-output performance in a compact inline-six platform.If you are researching the latest Yanmar 6LY400 price, this model represents a major step forward in Yanmar’s 6LY lineup with improved fuel efficiency, cleaner emissions, and smoother engine operation thanks to its common rail technology.For buyers actively searching for a Yanmar 6LY400 for sale, this engine is a preferred choice for modern vessels requiring advanced electronic control, reduced noise, and optimized fuel consumption.At Yanmar Marine Experts, we supply premium yanmar diesel marine engines for buyers seeking high-performance propulsion systems with modern integration and long-term reliability.Built on Yanmar’s advanced 6LY platform, this yanmar marine diesel engine solution offers strong torque output, responsive throttle control, and improved onboard comfort compared to older mechanical engines. marine industry standards Key Features of Yanmar 6LY400 Marine Diesel Engine400HP maximum outputCommon rail direct fuel injectionElectronic engine management systemTurbocharged and intercooled performanceSmooth acceleration and throttle responseReduced vibration and lower noise levelsCompact inline-six configurationExcellent fuel efficiencyIdeal for repower projectsAdvanced onboard system integrationThis engine remains a strong option for buyers researching dependable marine engines yanmar for performance-focused vessels.Compatible Gearboxes & Propulsion SystemsThe Yanmar 6LY400 Marine Inboard Diesel Engine 400HP Common Rail can be paired with compatible propulsion systems based on your vessel configuration and performance goals. Common options include Yanmar Gearboxes, Yanmar Powerboat Gears, and ZF Gearboxes for shaft drive applications.We assist in selecting the correct gearbox ratio, control configuration, and complete propulsion package based on vessel design and operational requirements before shipment.Technical SpecificationsTechnical SpecificationValueEngine ModelYanmar 6LY400Engine Series6LY SeriesMaximum Output400HP (294 kW)Rated Speed3,300 RPMEngine Type4-stroke vertical water-cooled diesel engineNumber of Cylinders6 cylindersDisplacementApprox. 5.8LBore x Stroke106 mm x 110 mmFuel SystemCommon Rail Direct InjectionAspirationTurbocharged & IntercooledControlsElectronicCooling SystemFreshwater coolingStarting SystemElectric StartAlternator12V / 120ADry WeightApprox. 640 kgDrive TypeInboard Shaft DriveRecommended ApplicationsSport fishing boats, cruisers, patrol vesselsComplianceEPA Tier 3, RCD 2, EMCStandard Manufacturer Package IncludesAll engines supplied by Yanmar Marine Experts are brand-new bobtail units and typically include electronic control system, multi-function display, factory wiring harness, installation manuals, owner documentation, flexible mounts, and standard manufacturer accessories.Optional upgrades may include additional helm stations and complete transmission packages.Compliance & CertificationsThe Yanmar 6LY400 Marine Inboard Diesel Engine 400HP Common Rail is built to meet modern emissions and safety standards for recreational and light commercial marine applications.Applicable certifications include:EPA Tier 3RCD 2EMCManufacturer compliance standardsEngine AvailabilityWe maintain access to available inventory through our internal stock and global dealer network. Availability may vary depending on production demand and seasonal supply.Warranty CoverageAll new Yanmar engines supplied by Yanmar Marine Experts include a standard 2-year manufacturer warranty for eligible applications.Qualified buyers may also be eligible for an additional 3 years extended warranty coverage, depending on usage classification and maintenance compliance.We also assist with warranty registration, documentation, and pre-delivery inspection support.Global ShippingWe ship worldwide through our logistics network using secure export packaging and full documentation support. Shipping can be arranged under EXW, CIF, or CFR terms depending on your preferred delivery structure. Once your order is confirmed, processing begins immediately while final delivery timelines depend on destination and engine availability.Frequently Asked QuestionsIs the Yanmar 6LY400 currently available?Availability can be confirmed through our sales team based on current stock.Does it come with a gearbox?Compatible Yanmar Powerboat Gears and ZF Gearboxes are available depending on your configuration.Is this engine suitable for repower projects?Yes, its compact inline-six design makes it ideal for repower applications.Do you ship internationally?Yes, we coordinate worldwide shipping and export documentation.How do I request pricing?Contact our team for the latest Yanmar 6LY400 price and availability.Request a QuoteContact Yanmar Marine Experts today to request pricing for your preferred Yanmar marine engine.To help us prepare the most accurate quotation and ensure the correct engine configuration before shipment, please provide your:Vessel typeCurrent engine model (for repower projects)Preferred gearbox modelPreferred gearbox ratioDelivery locationPurchase timelineOur team can assist with engine availability, compatible Yanmar Gearboxes, Yanmar Powerboat Gears, ZF Gearboxes, export documentation, global shipping coordination, pre-delivery inspection, and warranty registration support before delivery.