YANMAR 6LY400 Marine Diesel Engine 400hp
$49,824.00
- Description
Description
Yanmar 6LY400 Marine Diesel Engine 400HP – High-Speed Inboard Performance
The Yanmar 6LY400 marine diesel engine is a lightweight and high-output 400HP inboard propulsion engine developed for sportfishing boats, express cruisers, luxury yachts, and high-performance marine applications. Designed for fast acceleration, responsive throttle control, and dependable long-term reliability, this six-cylinder engine delivers impressive power density while maintaining fuel-efficient operation.
The Yanmar 6LY400 400HP for sale is commonly selected for vessel owners seeking modern inboard propulsion with strong cruising performance and reduced engine weight. Buyers searching for a dependable yanmar diesel engine often choose this model for repower projects and premium marine installations where speed, efficiency, and smooth operation are essential.
At Coastal Wave Marine, we assist customers worldwide who are sourcing dependable yanmar marine diesel engine solutions for yacht upgrades, performance vessel projects, and new marine installations with verified equipment and worldwide shipping support.
Key Features & Benefits
- 400HP output for high-performance marine propulsion
- Compact lightweight engine design for improved vessel balance
- Common-rail fuel injection system for efficient fuel delivery
- Turbocharged and intercooled system for enhanced acceleration
- Fast throttle response and smooth high-speed operation
- Freshwater cooling system with heat exchanger for durability
- Compatible with advanced propulsion systems including Yanmar Gearboxes
The Yanmar 6LY400 price may vary depending on gearbox configuration, vessel setup, and shipping destination. Coastal Wave Marine can provide tailored quotations based on your propulsion requirements and installation specifications.
Gearbox Type & Drive Configuration
The Yanmar 6LY400 is designed with a straight shaft drive configuration, making it suitable for high-performance inboard propulsion systems requiring efficient power transfer and responsive vessel handling. This setup is commonly installed in express cruisers, sportfishing boats, and luxury yacht applications.
Table Technical Specification
The following table technical specification outlines the operating characteristics and installation details of the Yanmar 6LY400 marine diesel engine.
| Technical Specification | Value |
|---|---|
| Configuration | 4-stroke vertical, water-cooled diesel engine |
| Maximum output at crankshaft | 294 kW (400 hp) @ 3300 rpm |
| Continuous rating output at crankshaft | 268 kW (365 hp) @ 3200 rpm |
| Bore × Stroke | 100 mm × 110 mm |
| Number of cylinders | 6 in-line |
| Combustion system | Common-rail direct injection |
| Aspiration | Turbocharged and intercooled |
| Starting system | Electric starting 12V |
| Lubrication system | Enclosed, forced lubricating system |
| Cooling system | Freshwater cooling with heat exchanger |
| Displacement | 5.81 L |
| Application | Sportfishing boats, cruisers, luxury yachts |
| Drive Type | Straight shaft drive |
Marine Applications
The Yanmar 6LY400 marine diesel engine is commonly installed in express cruisers, performance yachts, sportfishing boats, and premium marine applications 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 vessel owners, yacht operators, and marine professionals worldwide by supplying dependable yanmar marine engines 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 6LY400 marine diesel engine includes the standard manufacturer warranty for added operational confidence and long-term 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 6LY400 suitable for high-performance boats?
A: Yes, it is widely used in sportfishing boats, express cruisers, and luxury yachts requiring responsive high-speed propulsion.
Q: Is the Yanmar 6LY400 commonly used for repower projects?
A: Yes, its compact design and strong power-to-weight ratio make it popular 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 6LY400 400HP 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 performance yacht, repowering a sportfishing boat, or sourcing propulsion equipment for a new marine project, 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.






