Description

Yanmar 6LY440 Marine Diesel Engine 440HP – Premium High-Performance Inboard Power

The Yanmar 6LY440 marine diesel engine is a powerful and lightweight 440HP inboard propulsion engine engineered for sportfishing boats, express cruisers, luxury yachts, and demanding high-speed marine applications. Designed to deliver fast acceleration, responsive throttle control, and dependable long-term operation, this six-cylinder engine combines strong power output with fuel-efficient marine performance.

The Yanmar 6LY440 440HP for sale is widely selected for premium vessel installations and marine repower projects where owners require dependable propulsion, compact engine dimensions, and modern diesel efficiency. Buyers searching for a high-performance yanmar diesel engine often choose this model for applications where speed, reliability, and smooth cruising performance are essential.

At Coastal Wave Marine, we assist yacht owners, marine operators, and vessel builders worldwide who are sourcing dependable yanmar marine diesel engines for performance upgrades, repower projects, and new vessel installations with verified equipment and worldwide delivery support.

Key Features & Benefits

  • 440HP output for high-performance marine propulsion
  • Lightweight compact engine design for improved vessel handling
  • Common-rail fuel injection system for efficient combustion
  • Turbocharged and intercooled system for responsive acceleration
  • Smooth high-speed operation with strong torque delivery
  • Freshwater cooling system with heat exchanger for durability
  • Compatible with advanced propulsion systems including Yanmar Gearboxes

The Yanmar 6LY440 price may vary depending on gearbox configuration, vessel requirements, and shipping destination. Coastal Wave Marine can provide tailored quotations based on your propulsion setup and installation needs.

Gearbox Type & Drive Configuration

The Yanmar 6LY440 uses a straight shaft drive configuration, making it suitable for high-performance inboard propulsion systems requiring dependable power transfer and responsive vessel control. This setup is commonly installed in luxury yachts, performance cruisers, and sportfishing vessels.

Table Technical Specification

The following table technical specification outlines the operating characteristics and installation details of the Yanmar 6LY440 marine diesel engine.

Technical SpecificationValue
Configuration4-stroke vertical, water-cooled diesel engine
Maximum output at crankshaft324 kW (440 hp) @ 3300 rpm
Continuous rating output at crankshaft295 kW (401 hp) @ 3200 rpm
Bore × Stroke100 mm × 110 mm
Number of cylinders6 in-line
Combustion systemCommon-rail direct injection
AspirationTurbocharged and intercooled
Starting systemElectric starting 12V
Lubrication systemEnclosed, forced lubricating system
Cooling systemFreshwater cooling with heat exchanger
Displacement5.81 L
ApplicationSportfishing boats, cruisers, luxury yachts
Drive TypeStraight shaft drive

Marine Applications

The Yanmar 6LY440 marine diesel engine is commonly installed in luxury yachts, performance cruisers, express boats, and sportfishing vessels requiring dependable high-speed inboard propulsion.

Its lightweight construction, responsive power delivery, and efficient operating characteristics make it suitable for vessel owners seeking strong cruising performance and modern diesel reliability.

Why Boat Owners Choose Coastal Wave Marine

Coastal Wave Marine supports yacht owners, vessel builders, and marine professionals worldwide by supplying dependable yanmar engines marine backed by technical support and international shipping assistance.

  • Engines inspected and prepared before shipment
  • Worldwide delivery arrangements
  • Assistance with propulsion matching and compatibility
  • Support for repower and performance vessel projects
  • Reliable customer service throughout the process

Warranty & Quality Assurance

The Yanmar 6LY440 marine diesel engine includes the standard manufacturer warranty for added confidence and operational reliability.

Extended warranty coverage may also be available depending on vessel application and operating conditions. Every engine is inspected before shipment to help ensure dependable marine performance and installation readiness.

Sales FAQ

Q: Is the Yanmar 6LY440 suitable for high-performance marine applications?
A: Yes, it is widely used in sportfishing boats, express cruisers, and luxury yachts requiring responsive high-speed propulsion.

Q: Is the Yanmar 6LY440 commonly used for repower projects?
A: Yes, its compact size and strong power-to-weight ratio make it a popular option for marine repower installations.

Q: Can this engine be shipped internationally?
A: Yes, worldwide export and delivery support are available.

Q: What drive configuration is used with this engine?
A: It uses a straight shaft drive configuration compatible with high-performance marine propulsion systems.

Q: How can I request pricing and availability?
A: Contact Coastal Wave Marine directly to request quotations, stock availability, and shipping timelines.

Request a Quote & Availability

If you are looking to secure a Yanmar 6LY440 440HP for sale, Coastal Wave Marine can assist with current availability, propulsion specifications, export logistics, and technical support tailored to your vessel requirements. Whether you are upgrading a luxury yacht, repowering a sportfishing boat, or sourcing propulsion equipment for a new marine installation, our team is ready to provide dependable service and accurate information. Contact us today to request a quotation and confirm delivery options for your location.