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 – Inboard Marine Engine for Sale UK
Overview
The YANMAR 6AYM-STE marine diesel engine 659HP (H-rating) is a high-performance inboard engine engineered for commercial vessels and heavy-duty marine applications requiring strong power, durability, and fuel efficiency. Built on YANMAR’s proven large-displacement platform, this engine delivers reliable torque and consistent output even under demanding operating conditions.
If you are searching for a YANMAR 6AYM-STE marine diesel engine for sale, comparing marine diesel engine price options, or planning a commercial vessel repower project, this model offers a dependable and cost-effective solution trusted worldwide.
Who This Engine Is For
The YANMAR 6AYM-STE is ideally suited for:
- Commercial fishing vessels requiring continuous high-load performance
- Workboats, offshore service vessels, and patrol boats
- Passenger transport and utility vessels
- Medium to large vessels needing reliable propulsion power
- Repower projects replacing older high-horsepower marine diesel engines
Key Features and Benefits
- 659HP high-output marine diesel engine for demanding applications
- H-rated engine designed for high-load and variable-speed operation
- Strong torque delivery for efficient propulsion and load handling
- Fuel-efficient system to reduce long-term operating costs
- Durable construction for extended service life in harsh marine environments
- Smooth operation with reduced vibration and noise
- Compliant with IMO emissions regulations
- Approved by major classification societies (NK, ABS, BV, RINA, CCS)
Performance and Efficiency
The YANMAR 6AYM-STE features a large-displacement inline 6-cylinder configuration, providing stable and powerful performance across a wide RPM range. Its long-stroke design combined with turbocharging and intercooling ensures efficient airflow and optimized combustion.
This results in strong acceleration, consistent high-load performance, and improved fuel economy, making it ideal for commercial operators seeking both power and efficiency.
What Does H-Rating Mean?
The H-rating (High Duty) indicates that this engine is designed for applications that require high power output under variable load conditions, including extended periods of operation at higher speeds.
This makes the YANMAR 6AYM-STE ideal for commercial vessels that need reliable performance, durability, and operational flexibility.
YANMAR 6AYM-STE for Repower and Engine Replacement
The YANMAR 6AYM-STE is widely used in marine engine repower projects where increased power, efficiency, and reliability are required. It is commonly selected to replace ageing diesel engines that no longer meet performance or fuel economy expectations.
Upgrading to this engine can provide:
- Improved vessel speed and overall performance
- Reduced fuel consumption and operating costs
- Increased reliability and reduced maintenance downtime
- Compatibility with modern marine systems and controls
YANMAR 6AYM-STE Marine Diesel Engine – Table Specs
| Specification | Details |
|---|---|
| Engine Model | YANMAR 6AYM-STE |
| Engine Type | Inboard Marine Diesel Engine (4-stroke, water-cooled) |
| Rated Output | 659 HP |
| Engine Configuration | Inline 6-cylinder |
| Bore x Stroke | 155 mm × 180 mm |
| Displacement | Approx. 20.4 Litres |
| Combustion System | Direct injection |
| Aspiration | Turbocharger with intercooler |
| Cooling System | Heat exchanger |
| Starting System | Electric starter (24V) |
| Engine Rating | H-Rating (High Duty Marine Engine) |
Price and Availability
The price of the YANMAR 6AYM-STE marine diesel engine depends on configuration, gearbox options, and installation requirements.
If you are looking for the best price on a YANMAR 6AYM-STE marine diesel engine for sale in the UK or worldwide, contact Bluewake Marine Enterprises for a tailored quote, availability, and delivery timeline.
Why Choose Bluewake Marine Enterprises
Bluewake Marine Enterprises is a trusted supplier of YANMAR marine diesel engines, providing expert support for commercial operators, vessel owners, and marine engineers.
We help you:
- Select the right engine for your vessel
- Plan repower and replacement projects
- Source genuine marine diesel engines
- Access ongoing technical support and aftersales service
Frequently Asked Questions – YANMAR 6AYM-STE
What is the price of the YANMAR 6AYM-STE 659HP marine diesel engine?
Pricing varies depending on configuration, gearbox, and installation requirements. Contact Bluewake Marine Enterprises for a detailed quote.
Where can I buy a YANMAR 6AYM-STE marine diesel engine for sale?
You can purchase or request a quote directly from Bluewake Marine Enterprises, a trusted supplier of marine diesel engines.
Is the YANMAR 6AYM-STE suitable for commercial vessels?
Yes, it is designed for high-duty commercial applications requiring reliable and consistent power output.
What does H-rating mean in marine diesel engines?
H-rating refers to high-duty use, meaning the engine can operate under high load and variable speed conditions for extended periods.
Is this engine suitable for repower projects?
Yes, it is widely used for replacing older high-horsepower diesel engines in commercial vessels.
Call to Action
Looking for a YANMAR 6AYM-STE marine diesel engine 659HP for sale?
Contact Bluewake Marine Enterprises today to request a quote, confirm availability, and speak with a marine engine specialist about your vessel or repower project.
