

Yanmar 6HYM-WET 650HP Diesel Marine Inboard Engine
$49,988.00
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Description
Yanmar 6HYM-WET 650HP Diesel Marine Inboard Engine – Power Beyond Limits, Built for the Sea
Unlock the full potential of your vessel with the Yanmar 6HYM-WET 650HP Diesel Marine Engine, available from Marine Inboard Specialists. Designed for demanding commercial operations and luxury marine performance, this 6-cylinder, turbocharged inboard engine delivers 650HP at 2100 RPM while meeting the most stringent IMO Tier III and EPA Tier III emissions standards.
Crafted for long-haul performance and engineered for endurance, the 6HYM-WET offers smooth power delivery, low fuel consumption, and a quiet, reliable ride—making it the preferred solution for operators of offshore vessels, fishing fleets, passenger ferries, and high-end yachts.
Why Choose the Yanmar 6HYM-WET 650HP Engine from Marine Inboard Specialists?
Unmatched Performance and Acceleration
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Rated at 650HP (441 kW) at 2100 RPM, this high-output marine diesel engine delivers impressive torque for acceleration and cruising power across all load conditions.
Eco-Friendly and Fully Certified
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Complies with IMO Tier III and EPA Tier III standards for reduced NOx emissions and cleaner operation.
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Ideal for vessels operating in Emission Control Areas (ECAs).
Engineered for Harsh Marine Environments
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Constructed using corrosion-resistant materials, marine-grade hardware, and a closed-loop heat exchanger cooling system for long-term performance in saltwater applications.
Quiet, Smooth Operation
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Advanced engineering ensures low vibration and minimal noise, enhancing comfort onboard during long voyages.
Backed by a 5-Year Warranty
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Protected by Yanmar’s industry-leading 5-year manufacturer warranty, ensuring peace of mind for commercial and recreational operators alike.
Technical Specifications – Yanmar 6HYM-WET 650HP
Specification | Details |
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Engine Model | Yanmar 6HYM-WET |
Engine Type | 6-Cylinder, 4-Stroke, Turbocharged, Water-Cooled |
Rated Power Output | 650HP / 441 kW @ 2100 RPM |
Displacement | 13.733 Liters |
Fuel System | Direct Injection |
Cooling System | Freshwater with Heat Exchanger |
Dry Weight (w/o gear) | 1,465 kg |
Dimensions (L × W × H) | 1785 mm × 1250 mm × 1345 mm |
Alternator Output | 24V – 60A |
Emission Compliance | IMO Tier III, EPA Tier III |
Gearbox | Included (Factory-Installed) |
Warranty | 5 Years Manufacturer Warranty |
What’s Included in the Engine Package
Your purchase of the Yanmar 6HYM-WET 650HP Diesel Inboard Engine from Marine Inboard Specialists includes:
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Brand New Yanmar 6HYM-WET 650HP Diesel Engine
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Factory-Installed Marine Gearbox
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Turbocharger System
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Closed-Loop Freshwater Heat Exchanger Cooling System
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Starter Motor & Alternator (24V – 60A)
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Flexible Engine Mounts
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Fuel Pre-Filter with Water Separator
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Exhaust Mixing Elbow (L-Type)
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Freshwater Expansion Tank
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Wiring Harness (5m) with Connectors
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Belt Safety Cover
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Installation and Operation Manuals
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Warranty Registration Documentation
Optional Accessories for Customization
Enhance your propulsion system with these optional accessories:
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High-Riser Exhaust Mixing Elbow
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Secondary Alternator (12V or 24V)
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VC10 Vessel Control System
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NMEA2000 Engine Monitoring System
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Extended Wiring Harnesses (3m, 5m, 10m)
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Onboard Spare Parts Maintenance Kit
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Hot Water Kit for Onboard Use
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SOLAS Certification Package for Commercial Vessels
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Propeller Cone Nut Kit
Warranty Coverage
The Yanmar 6HYM-WET is covered by a 5-Year Manufacturer’s Warranty, providing full protection against defects in materials or workmanship. Extended service packages and custom warranty options are also available upon request through Marine Inboard Specialists.
Frequently Asked Questions (FAQs)
1. What makes the Yanmar 6HYM-WET 650HP engine stand out?
This engine combines high-output turbocharged power, IMO Tier III compliance, and commercial-grade durability, making it one of the most reliable propulsion systems for large marine vessels.
2. Does this engine come with a gearbox?
Yes, it includes a factory-installed marine gearbox, ensuring smooth operation and simplified installation.
3. What vessel types is this engine suitable for?
Perfect for luxury yachts, passenger ferries, commercial fishing boats, offshore support vessels, and heavy-duty workboats.
4. Is the 6HYM-WET 650HP fuel-efficient?
Absolutely. Its direct injection and turbocharged system delivers strong performance while keeping fuel consumption under control.
5. Can I get spare parts and accessories?
Yes. We stock and ship genuine Yanmar spare parts and optional accessories, with fast delivery available worldwide.
6. Does Marine Inboard Specialists ship internationally?
Yes. We offer reliable worldwide shipping to ports and shipyards across Europe, Asia, the Americas, and beyond.
7. Do you offer installation services?
Yes. Marine Inboard Specialists provides expert installation support to ensure your engine is correctly configured and operating at full potential.
Get a Quote – Yanmar 6HYM-WET 650HP Marine Diesel Engine
Power your vessel with unmatched reliability and performance. The Yanmar 6HYM-WET 650HP Diesel Marine Inboard Engine is the go-to choice for serious marine operators. Contact Marine Inboard Specialists today to request pricing, availability, or a custom engine configuration.
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