Yanmar 6AYEM-GT 911HP Diesel Marine Engine – Power and Precision by JB Marine GmbH
JB Marine GmbH, Germany’s trusted supplier of Yanmar marine diesel engines, proudly presents the Yanmar 6AYEM-GT Diesel Marine Engine, a robust propulsion system delivering 911HP (670 kW) at 2000 RPM.
Built for commercial vessels, offshore support boats, fishing fleets, and recreational yachts, this engine combines Yanmar’s world-class engineering with exceptional performance, fuel efficiency, and reliability. Designed for continuous-duty operation, it delivers unmatched durability and efficiency even under extreme marine conditions.
Overview – Engineered for Performance and Endurance
The Yanmar 6AYEM-GT represents the next generation of heavy-duty marine propulsion technology.
This 6-cylinder, in-line diesel engine integrates advanced direct injection, turbocharger with intercooler, and a heat exchanger cooling system for optimal performance and long service life.
With superior fuel efficiency and compliance with IMO emissions standards, this engine offers seamless power delivery and dependable operation for both new builds and repowering projects.
Why Choose the Yanmar 6AYEM-GT 911HP Marine Diesel Engine?
Exceptional Power and Torque
The 6AYEM-GT produces 911HP at 2000 RPM, providing robust torque and propulsion for heavy-duty and high-speed marine operations. Perfect for operators demanding maximum output and endurance.
Advanced Fuel Efficiency
Equipped with Yanmar’s direct injection technology and precision combustion chambers, this engine delivers high power with low fuel consumption, reducing operating costs over extended voyages.
IMO Emissions Compliance
The integrated Exhaust Gas Recirculation (EGR) system significantly reduces NOx emissions, meeting IMO Tier II environmental standards. Optional kits for IMO Tier III compliance are also available.
Built for Long-Term Durability
Featuring a heat exchanger cooling system, SAE #0 flywheel housing, and marine-grade components, the 6AYEM-GT is engineered to perform reliably in the toughest offshore and commercial conditions.
Compact and Adaptable
Designed for easy installation and repowering compatibility, its compact footprint and flexible configuration options make it ideal for a wide range of vessels.
Certified Marine Quality
Type-approved by NK, ABS, BV, RINA, and CCS, the Yanmar 6AYEM-GT meets global standards for marine safety, emissions, and performance.
Technical Specifications – Yanmar 6AYEM-GT 911HP
| Specification | Details |
|---|---|
| Model | Yanmar 6AYEM-GT |
| Rated Output | 670 kW (911 HP) @ 2000 RPM |
| Number of Cylinders | 6 in-line |
| Displacement | 20.379 L |
| Combustion System | Direct Injection |
| Aspiration | Turbocharged + Intercooled |
| Cooling System | Heat Exchanger |
| Bore × Stroke | 155 mm × 180 mm |
| Starting System | Electric (24 V / 8.0 kW) |
| Dry Mass | 2418 kg (without marine gear) |
| Flywheel Housing | SAE #0, 18-inch |
| Dimensions (L × W × H) | 2000 × 1305 × 1531 mm |
| Marine Gearbox | YXH-240-7 |
| Warranty | 5 Years Manufacturer Warranty |
Complete Engine Package from JB Marine GmbH
Every Yanmar 6AYEM-GT Marine Diesel Engine supplied by JB Marine GmbH is delivered as a complete, ready-to-install package.
Package Includes:
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Turbocharger + Intercooler
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Heat Exchanger Cooling System
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Fuel Pre-Filter with Water Separator
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Flexible Engine Mounts
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Exhaust Mixing Elbow
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Alternator (12V – 125A)
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Starter Motor (24V – 8.0kW)
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Freshwater Expansion Tank
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NMEA2000 Engine Monitoring System
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Belt Safety Cover
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Comprehensive User Manual
Optional Accessories & Upgrades
Enhance your Yanmar engine performance with these genuine accessories, available from JB Marine GmbH:
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High-Riser Exhaust Mixing Elbow
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Secondary Alternators (12V – 125A or 24V – 60A)
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Front-Mounted Seawater Pump
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Hot Water Kits with Cocks
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Spare Parts Kit for onboard maintenance
All accessories are OEM-certified for compatibility, ensuring optimal performance and reliability.
Warranty & Support by JB Marine GmbH
The Yanmar 6AYEM-GT 911HP Diesel Marine Engine is protected by a 5-year manufacturer’s warranty, covering all defects in materials and workmanship.
JB Marine GmbH enhances this assurance with:
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Certified installation and commissioning support
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Genuine Yanmar spare parts and accessories
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Expert service and maintenance plans
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Reliable technical assistance across Europe
Our dedicated after-sales team ensures that your Yanmar engine operates at peak efficiency throughout its lifespan.
Applications & Performance
The 6AYEM-GT engine is engineered for superior performance across multiple marine sectors:
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Commercial Fishing Boats: Provides reliable torque for towing and hauling operations.
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Offshore Support Vessels: Delivers consistent power for extended, heavy-duty performance.
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High-Speed Yachts: Ensures powerful yet smooth propulsion for luxury and recreational vessels.
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Repowering Projects: Compact design enables easy retrofitting in existing vessels, extending operational life with advanced technology.
Frequently Asked Questions (FAQs)
What types of vessels can the Yanmar 6AYEM-GT power?
It’s ideal for commercial boats, offshore vessels, fishing fleets, and high-performance yachts.
How fuel-efficient is it?
Thanks to Yanmar’s direct injection and optimized combustion design, it provides exceptional fuel economy under all conditions.
Does it meet emissions standards?
Yes — fully compliant with IMO Tier II standards, with optional IMO Tier III kits available.
Is it suitable for repowering older vessels?
Yes. The engine’s compact design and versatile gearbox configuration make it a perfect repowering solution.
What’s included in the package?
The engine, gearbox, turbocharger, alternator, cooling system, exhaust mixing elbow, and installation manual.
What’s covered under the warranty?
A 5-year warranty against defects in materials and workmanship.
Does JB Marine GmbH offer installation support?
Yes — our certified marine technicians handle full installation, alignment, and maintenance services.
Why Choose JB Marine GmbH – Yanmar Marine Experts in Germany
At JB Marine GmbH, we are committed to powering Europe’s maritime industry with premium Yanmar diesel engines and expert technical support.
Our Advantages:
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Authorized Yanmar dealer and service center
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Factory-certified technicians
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Competitive pricing and professional consultation
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Fast, reliable shipping across Germany and Europe
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Comprehensive spare parts inventory and after-sales care
When you choose JB Marine GmbH, you choose reliability, performance, and long-term value.
Contact JB Marine GmbH – Order Your Yanmar 6AYEM-GT 911HP Engine Today
Equip your vessel with the strength and reliability of the Yanmar 6AYEM-GT 911HP Diesel Marine Engine.
Contact JB Marine GmbH today for expert consultation, pricing, and delivery options.
