Yanmar 6AYM-STE marine diesel engine 659hp H-rating
Original price was: $45,088.00.$42,833.60Current price is: $42,833.60.
- Description
Description
Yanmar 6AYM-STE Marine Diesel Engine 659HP H-Rating – High-Speed Inboard Propulsion
The Yanmar 6AYM-STE marine diesel engine is a powerful and reliable 659HP inboard propulsion engine engineered for commercial vessels, patrol boats, and high-speed marine applications. Built for demanding environments, this six-cylinder engine delivers strong power output, efficient fuel consumption, and dependable operation under continuous high-speed conditions.
The Yanmar 6AYM-STE marine diesel engine (659HP H-rating) is a popular choice for buyers seeking Yanmar marine engines with high-performance propulsion systems. It is also a preferred choice for customers sourcing yanmar engines for sale for commercial fleets and performance-driven operations.
At Coastal Wave Marine, we support customers worldwide who are ready to source and secure the Yanmar 6AYM-STE marine diesel engine, providing verified equipment and dependable delivery solutions tailored to each requirement.
Key Features & Benefits
- 659HP output for high-speed marine propulsion
- H-Rating (High-Speed Duty) for demanding performance applications
- Six-cylinder inline configuration for smooth and powerful operation
- Turbocharged and aftercooled system for enhanced efficiency and output
- Fuel-efficient performance for heavy-duty marine use
- Freshwater cooling system with heat exchanger for durability
- Engineered for long-term reliability in commercial environments
Gearbox Type & Drive Configuration
The Yanmar 6AYM-STE is equipped with a straight shaft drive configuration, making it compatible with heavy-duty marine transmission systems including Yanmar Gearboxes. This setup is ideal for high-speed vessels where efficient power transfer and consistent propulsion are essential.
Technical Specifications Table
The following table specs provide a clear overview of the Yanmar 6AYM-STE 659HP marine diesel engine configuration, performance output, and installation characteristics.
| Technical Specification | Value |
|---|---|
| Configuration | 4-stroke vertical, water-cooled diesel engine |
| Maximum output at crankshaft | 485 kW (659 hp) @ 2300 rpm |
| Continuous rating output at crankshaft | 450 kW (612 hp) @ 2200 rpm |
| Bore × Stroke | 155 mm × 180 mm |
| Number of cylinders | 6 in-line |
| Combustion system | Direct injection |
| Aspiration | Turbocharged and aftercooled |
| Starting system | Electric starting 24V |
| Lubrication system | Enclosed, forced lubricating system |
| Cooling system | Freshwater cooling with heat exchanger |
| Displacement | 20.36 L |
| Rating | H-Rating (High-Speed Duty) |
| Application | Patrol boats, commercial vessels, high-speed marine propulsion |
Applications
The Yanmar 6AYM-STE 659HP marine diesel engine is commonly selected by buyers looking for reliable high-speed propulsion solutions for commercial vessels, patrol boats, and performance marine operations. Its H-rating ensures consistent performance under demanding high-speed conditions.
Why Coastal Wave Marine
Coastal Wave Marine works with customers globally who are looking to source dependable Yanmar marine engines with confidence. We provide a clear and reliable process from inquiry through to final delivery.
- Engines inspected and prepared before shipment
- Competitive terms for international customers
- Support with engine selection and compatibility
- Reliable shipping across the USA, Europe, the Middle East, and beyond
Warranty & Quality Assurance
The Yanmar 6AYM-STE 659HP marine diesel engine comes with the standard manufacturer warranty, ensuring quality, reliability, and support from the original manufacturer. Each engine is also checked to meet marine performance expectations before delivery.
Shipping & Availability
Availability may vary depending on stock levels. Coastal Wave Marine manages secure packaging, export documentation, and worldwide delivery, ensuring safe and efficient transport to your location.
Sales FAQ
Q: What does H-Rating mean for the Yanmar 6AYM-STE engine?
A: H-Rating (High-Speed Duty) indicates the engine is designed for high-speed applications with continuous operation under demanding conditions.
Q: Is the Yanmar 6AYM-STE suitable for commercial vessels?
A: Yes, it is widely used in commercial and high-performance marine applications.
Q: Can this engine be shipped internationally?
A: Yes, worldwide delivery and export support are available.
Q: What gearbox type is used with this engine?
A: It uses a straight shaft drive configuration compatible with heavy-duty marine transmission systems.
Q: How can I request a quote and check availability?
A: You can contact Coastal Wave Marine to request a quote and confirm availability.
Request a Quote & Availability
If you are looking to secure a Yanmar 6AYM-STE 659HP marine diesel engine, Coastal Wave Marine can assist with current availability, specifications, and delivery options tailored to your requirements. Whether you are sourcing engines for commercial operations or upgrading your fleet, our team is ready to support you with accurate information and a smooth process. Reach out today to request a quote, confirm stock, and receive delivery timelines.





