Yanmar 6AYM-WET Marine Diesel Engine

DescriptionNew Yanmar 6AY650 Marine Inboard Diesel Engine 650HP For SaleThe Yanmar 6AY650 Marine Inboard Diesel Engine 650HP is built for commercial operators, yacht owners, sport fishing vessels, patrol boats, and repower projects that require dependable offshore performance and heavy-duty reliability. Designed for long operational hours and demanding marine environments, this engine delivers strong torque output and dependable cruising efficiency for larger vessels.If you are searching for a Yanmar 6AY650 for sale, this model remains one of the most trusted high-horsepower solutions in the Yanmar commercial propulsion lineup.At Yanmar Marine Experts, we supply premium yanmar diesel engine solutions backed by global shipping support, technical guidance, and complete propulsion packages tailored to your vessel requirements.Built on Yanmar’s proven 6AY platform, this marine engine yanmar solution is engineered for durability, fuel efficiency, and reliable offshore performance.Why Choose the Yanmar 6AY650Marine Inboard Diesel Engine?650HP high-output marine performanceStrong low-end torque for larger vesselsTurbocharged and aftercooled platformBuilt for commercial-duty applicationsExcellent long-distance cruising capabilityReliable operation in demanding marine environmentsDurable inboard propulsion designIdeal for repower projectsThis engine is also popular among buyers researching dependable yanmar boat engines for larger recreational and commercial vessels. boat maintenance resourcesCompatible Gearboxes & Propulsion SystemsThe Yanmar 6AY650 Marine Inboard Diesel Engine 650HP can be paired with compatible propulsion systems depending on your vessel setup, including:Yanmar GearboxesYanmar Powerboat GearsZF GearboxesOur team helps match proper transmission ratios, shaft configurations, and complete propulsion packages based on vessel size and performance goals.Technical SpecificationsTechnical SpecificationValueEngine ModelYanmar 6AY650Engine Series6AY SeriesEngine Type4-stroke vertical water-cooled diesel engineMaximum Output650HP (478 kW)Rated Speed1,900 RPMNumber of Cylinders6-cylinder inlineDisplacement8.24LBore x Stroke112 mm x 110 mmAspirationTurbocharged & AftercooledFuel SystemDirect InjectionCooling SystemFreshwater cooling with heat exchangerStarting SystemElectric StartAlternator Output24VDry WeightApprox. 980 kgDuty RatingHeavy-duty marine operationMount TypeFlexible marine mountsDrive TypeInboard shaft driveGearbox CompatibilityYanmar / ZF marine transmissionsRecommended Vessel TypeYachts, ferries, patrol boats, fishing vesselsFuel TypeMarine DieselComplianceEPA / IMO standardsStandard Package IncludesAll engines supplied by Yanmar Marine Experts are brand-new bobtail units and typically include:Factory engine packageStandard wiring harnessOwner manualsEngine documentationInstallation documentationStandard manufacturer accessoriesPre-delivery inspection documentationOptional controls, transmissions, and additional propulsion accessories are available upon request.Compliance & CertificationsThe Yanmar 6AY650 Marine Inboard Diesel Engine 650HP is built to meet applicable marine compliance standards depending on destination market requirements.Applicable standards may include:EPA Marine Emissions StandardsIMO compliance requirementsRegional marine certificationsManufacturer production standardsEngine AvailabilityWe maintain inventory access through our internal stock and authorized dealer network. Availability may vary based on market demand. marine industry updatesWarranty CoverageAll new Yanmar engines include standard manufacturer warranty protection.Our team also assists buyers with warranty registration and technical documentation support.Global ShippingWe ship worldwide with secure export packaging and documentation.Shipping options include:EXWCIFCFRFinal delivery timelines depend on destination and inventory availability.Frequently Asked QuestionsIs this engine currently available?Available units can be sourced through our stock and dealer network.Can this engine be supplied with a gearbox?Yes, compatible Yanmar Gearboxes and ZF Gearboxes can be supplied.Is this engine suitable for commercial use?Yes, it is commonly used for commercial marine operations.Do you ship internationally?Yes, we coordinate worldwide delivery.How do I request pricing?Contact our team today for the latest Yanmar 6AY650 price and availability.Request a QuoteContact Yanmar Marine Experts today to secure the Yanmar 6AY650 Marine Inboard Diesel Engine 650HP for your vessel. We provide global shipping, gearbox matching, warranty support, and complete propulsion solutions.