

- Description
Description
Yanmar 6HA2M-WHT 350HP Marine Inboard Engine – Turbocharged Power, Built for Commercial Marine Use
Get the perfect combination of power, reliability, and fuel efficiency with the Yanmar 6HA2M-WHT 350HP Marine Inboard Diesel Engine, available from Marine Inboard Specialists. This six-cylinder, turbocharged marine diesel engine delivers 350 horsepower at 1950 RPM, making it a trusted solution for demanding commercial marine operations.
Whether you’re powering fishing boats, passenger ferries, cargo vessels, or workboats, the Yanmar 6HA2M-WHT is built to perform with low fuel consumption, superior durability, and marine-grade toughness. Equipped with the Kanzaki YX-120 hydraulic gearbox, this inboard engine ensures seamless torque transfer and smooth propulsion in the harshest conditions.
Key Features of the Yanmar 6HA2M-WHT 350HP Inboard Engine
High-Performance Turbocharged Propulsion
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Generates 350HP (257 kW) at 1950 RPM, delivering high torque and smooth cruising capability.
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Turbocharged direct injection system ensures clean combustion and maximum fuel efficiency under load.
Marine-Grade Durability
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Designed with corrosion-resistant components and heavy-duty construction for extended service life in saltwater environments.
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Built for continuous-duty applications across a wide range of vessel types.
Advanced Heat Exchanger Cooling
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Keeps operating temperatures stable, even during long-haul voyages and high-demand conditions.
Smooth, Quiet Operation
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Flexible engine mounts reduce vibration and noise for a more comfortable onboard experience.
Low Maintenance and Easy Access
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Engineered for fast inspections and simplified servicing with accessible components and clear diagnostics.
IMO Tier II Emissions Compliant
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Fully compliant with IMO Tier II regulations, supporting reduced NOx emissions without compromising power.
Technical Specifications – Yanmar 6HA2M-WHT 350HP
Specification | Details |
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Engine Model | Yanmar 6HA2M-WHT |
Power Output | 350 HP / 257 kW @ 1950 RPM |
Engine Type | 6-Cylinder, Turbocharged, Water-Cooled |
Fuel System | Direct Injection |
Cooling System | Heat Exchanger |
Displacement | 13.1 Liters |
Bore × Stroke | 130 mm × 165 mm |
Dry Weight | 1,455 kg |
Alternator Output | 24V – 6.0 kW |
Engine Mounting | Flexible Engine Mounts |
Starting System | Electric Start |
Flywheel & Housing | SAE #1 Housing with 14-inch Flywheel |
Gearbox | Kanzaki YX-120 Hydraulic Gearbox |
Emission Compliance | IMO Tier II |
Package Includes
Each Yanmar 6HA2M-WHT 350HP engine package from Marine Inboard Specialists includes:
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Yanmar 6HA2M-WHT Turbocharged Marine Diesel Engine
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Kanzaki YX-120 Hydraulic Marine Gearbox with multiple reduction ratios
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Factory-Installed Heat Exchanger
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Electric Starting Motor (24V, 6.0 kW)
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SAE #1 Flywheel Housing + 14-inch Flywheel
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Operator’s Manual & Installation Guide
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Basic Tool Kit & Onboard Spare Parts Package
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Warranty Registration Documentation
Optional Accessories
Customize your Yanmar inboard engine system with these available accessories:
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High-Riser Exhaust Mixing Elbow
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Flexible Mounting Kits
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Extension Wire Harnesses (3m, 5m, 10m, 20m)
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Water Separator & Fuel Filter
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Remote Control Panels
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Trolling Valve (for KMH50A transmission – great for fishing vessels)
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Lube Oil Evacuation Pump for easy oil changes
Warranty and Support
Every Yanmar marine engine from Marine Inboard Specialists is backed by industry-leading support:
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2-Year or 2,000-Hour Manufacturer Warranty covering parts and labor for defects
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Extended Warranty Options available upon request
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Access to Yanmar’s Global Service Network for certified support, spare parts, and service centers
Frequently Asked Questions (FAQs)
1. What types of vessels are ideal for the Yanmar 6HA2M-WHT 350HP engine?
This engine is suitable for fishing vessels, ferries, cargo boats, commercial workboats, and even larger private yachts.
2. How does the engine support fuel savings?
The combination of turbocharging and direct fuel injection ensures precise combustion and low fuel consumption, even under continuous heavy load.
3. Does it comply with international emissions standards?
Yes, this engine is fully IMO Tier II compliant, supporting clean marine operations in regulated waters.
4. How often should I service the 6HA2M-WHT engine?
Routine maintenance is recommended every 250–500 operating hours, depending on usage. Use genuine Yanmar parts to maintain performance.
5. Where can I get spare parts?
Genuine Yanmar parts and accessories are available through Marine Inboard Specialists and Yanmar’s authorized dealer network worldwide.
Why Choose Marine Inboard Specialists?
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Authorized Yanmar Engine Dealer
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In-depth marine engine expertise
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Competitive pricing and volume discounts
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Fast and secure global shipping
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Reliable after-sales service and support
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Inventory of spare parts and accessories