

Yanmar 6HA2M-WHT 278HP Marine Inboard Engine
$22,988.00
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- Description
Description
Yanmar 6HA2M-WHT 278HP Marine Inboard Engine – Built for Fuel Efficiency, Reliability, and Endurance
Unlock dependable propulsion with the Yanmar 6HA2M-WHT 278HP Marine Diesel Engine, exclusively from Marine Inboard Specialists. Designed for demanding commercial marine environments, this naturally aspirated, 6-cylinder diesel engine delivers outstanding fuel economy, mechanical reliability, and low-maintenance performance for fishing vessels, workboats, and passenger ferries.
Built with Yanmar’s signature engineering excellence, the 6HA2M-WHT offers a durable and efficient solution for marine operators seeking long-term power, compliance, and performance.
Top Features of the Yanmar 6HA2M-WHT 278HP Diesel Marine Engine
Optimized for Fuel-Efficient Operation
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Generates 278HP (204 kW) at 1,880 RPM, providing consistent propulsion for extended operations without excessive fuel use.
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Direct injection system improves combustion efficiency and reduces fuel consumption across all load conditions.
Built to Withstand Harsh Marine Conditions
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Durable mechanical components are engineered for reliability in high-humidity, saltwater environments.
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Heat exchanger cooling system ensures consistent temperature control during prolonged engine use.
Mechanical Simplicity for Maximum Reliability
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Fully mechanical engine management system reduces complexity and minimizes the risk of electronic component failure.
Ease of Maintenance
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Designed with accessible inspection points for quick routine servicing, helping reduce downtime and operating costs.
Environmentally Responsible
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Fully IMO Tier II emissions compliant, making it a smart choice for eco-conscious marine operators.
Yanmar 6HA2M-WHT – Technical Specifications
Specification | Details |
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Model | Yanmar 6HA2M-WHT |
Engine Type | 6-Cylinder, Naturally Aspirated, Water-Cooled |
Power Output | 278 HP / 204 kW @ 1,880 RPM |
Fuel System | Direct Injection Diesel |
Cooling System | Heat Exchanger |
Displacement | 13.14 Liters |
Bore × Stroke | 130 mm × 165 mm |
Dry Weight | 1,340 kg |
Alternator Output | 24V – 6.0 kW |
Starting System | Electric Start |
Flywheel Housing | SAE #1 with 14-inch Flywheel |
Emission Compliance | IMO Tier II |
What’s Included in the Engine Package
When you purchase the Yanmar 6HA2M-WHT 278HP diesel engine from Marine Inboard Specialists, your package includes:
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Yanmar 6HA2M-WHT Marine Diesel Engine
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Kanzaki YX-120 Marine Gearbox (with multiple reduction ratios)
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Factory-Installed Heat Exchanger
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24V Electric Starting Motor (6.0 kW)
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SAE #1 Flywheel Housing + 14-inch Flywheel
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Operator’s Manual and Installation Guide
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Basic Tool Kit & Onboard Spare Parts Package
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Warranty Registration Documentation
Optional Accessories and Customization Upgrades
Enhance your marine engine installation with these optional accessories:
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High-Riser Exhaust Mixing Elbow
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Flexible Engine Mounts – Reduces vibration and enhances onboard comfort
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Extension Wire Harnesses (3m, 5m, 10m, 20m)
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Water Separator & Fuel Filter Kit
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Remote Control Panel for Engine Monitoring
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Trolling Valve (for KMH50A transmission, ideal for fishing applications)
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Lube Oil Evacuation Pump for fast, clean oil changes
Warranty and Global Support
All Yanmar diesel engines from Marine Inboard Specialists include:
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2-Year or 2,000-Hour Manufacturer Warranty (covers parts and labor for manufacturing defects)
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Extended Warranty Options available upon request
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Access to Yanmar’s Global Service Network for certified parts and support
For full warranty details and coverage terms, please contact Marine Inboard Specialists.
Frequently Asked Questions (FAQs)
1. What marine applications is the Yanmar 6HA2M-WHT best suited for?
This engine is ideal for commercial fishing boats, utility workboats, passenger ferries, and inland waterway craft seeking fuel efficiency and mechanical simplicity.
2. How fuel-efficient is the 6HA2M-WHT?
The direct injection design ensures efficient combustion and reduced fuel usage, making it cost-effective over long voyages.
3. Is the engine environmentally compliant?
Yes, the engine complies with IMO Tier II emission regulations, supporting reduced NOx emissions.
4. What maintenance is required?
Routine servicing should occur every 250–500 hours, including oil and filter changes, belt inspections, and cooling system checks. Genuine Yanmar parts are recommended.
5. Where can I purchase spare parts?
You can buy genuine spare parts directly from Marine Inboard Specialists or through Yanmar’s global dealer network.
Why Choose Marine Inboard Specialists?
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Authorized Dealer of Yanmar Marine Diesel Engines
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Competitive pricing and volume discounts available
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Expert support for engine selection, installation, and configuration
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Fast, reliable global shipping options
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Full inventory of spare parts and accessories
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Dedicated after-sales service for long-term reliability
Request a Quote for the Yanmar 6HA2M-WHT 278HP Inboard Diesel Engine
Ready to upgrade your marine operations with a reliable and efficient propulsion system? Contact Marine Inboard Specialists today for pricing, availability, and technical assistance on the Yanmar 6HA2M-WHT 278HP marine diesel engine. We’ll help you choose the right solution for your vessel and operating conditions.