Buy Yanmar 3YM30AE Marine Diesel Engine 29hp – Premium Power for Sailboats & Motor Vessels | JB Marine GmbH
When performance, reliability, and efficiency are non-negotiable at sea, the Yanmar 3YM30AE Marine Diesel Engine (29 hp) stands out as one of the most trusted propulsion systems in the world. Available now from JB Marine GmbH — your certified European source for Yanmar marine engines and genuine marine propulsion solutions, this 3-cylinder powerhouse delivers smooth operation, minimal vibration, and exceptional durability for sailboats, yachts, and light-duty motor vessels.
Overview: Yanmar 3YM30AE Marine Diesel Engine 29hp
The Yanmar 3YM30AE is a 3-cylinder, 4-stroke water-cooled diesel engine producing 29 horsepower (21.3 kW) at 3600 RPM. Engineered in Japan and globally respected for its consistency and endurance, it’s the perfect solution for boats between 28 to 36 feet in length, offering an optimal balance between power, fuel economy, and onboard comfort.
This model represents Yanmar’s long-standing commitment to environmentally responsible marine engineering, meeting EPA Tier 2 and EU Stage II emissions standards while maintaining top-tier torque and acceleration.
Technical Specifications – Yanmar 3YM30AE 29 hp
| Specification | Details |
|---|---|
| Max Output | 29 HP (21.3 kW) @ 3600 RPM |
| Continuous Output | Approx. 26 HP @ 3200 RPM |
| Cylinders | 3 |
| Displacement | 854 cc (0.854 L) |
| Bore × Stroke | 70 mm × 84 mm |
| Fuel System | Indirect injection |
| Aspiration | Naturally aspirated (non-turbocharged) |
| Starting System | Electric 12 V – 1.4 kW |
| Alternator | 80 A with built-in regulator |
| Cooling System | Seawater heat exchanger |
| Lubrication | Forced lubrication |
| Dry Weight | Approx. 114 kg (251 lbs) |
| Rotation | Counter-clockwise (viewed from flywheel) |
| Mounting | Flexible rubber engine mounts |
| Emissions Compliance | EPA Tier 2 / EU Stage II |
Key Benefits of the Yanmar 3YM30AE
Quiet, Smooth Operation
Thanks to advanced combustion design and precision engineering, the 3YM30AE produces remarkably low noise and vibration levels. Ideal for long-distance cruising or leisure sailing, it ensures quiet comfort on board.
Exceptional Fuel Efficiency
Built with indirect injection technology and natural aspiration, this Yanmar engine optimizes fuel consumption at cruising speed, reducing operational costs and extending your range on every voyage.
Compact, Lightweight Design
With a dry weight of just 114 kg, the 3YM30AE fits neatly into tight engine compartments, perfect for modern sailboats, catamarans, and compact motor yachts requiring maximum performance in minimal space.
Reliable Marine Engineering
Every Yanmar engine is factory-tested and ISO-certified, ensuring the highest standards of quality control. Marine operators trust the 3YM30AE for its consistent performance in both coastal and offshore environments.
Global Service Network
Backed by Yanmar’s worldwide service and parts network, you’ll enjoy access to genuine components and trained marine technicians wherever your journey takes you.
Why Buy From JB Marine GmbH?
At JB Marine GmbH, we specialize in supplying premium marine diesel engines, propulsion systems, and OEM Yanmar parts across Europe and beyond. When you order your Yanmar 3YM30AE Marine Diesel Engine 29 hp from us, you’re choosing:
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Genuine Yanmar product – factory-tested and ready for installation
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Fast, secure worldwide shipping from our European distribution centers
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Expert installation guidance and after-sales technical support
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Authorized warranty coverage and optional maintenance plans
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Competitive pricing with flexible payment options
We are proud to serve professional boatbuilders, repair yards, and private yacht owners, providing not just an engine, but a complete propulsion solution backed by industry expertise and commitment to excellence.
Applications – Where the Yanmar 3YM30AE Excels
This engine is ideal for:
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Cruising yachts (28 – 36 ft)
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Catamarans and monohulls
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Light-duty motorboats and tenders
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Small commercial vessels and charter boats
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Auxiliary engines for sailboats
Whether you’re refitting an older vessel or specifying power for a new build, the 3YM30AE delivers the perfect balance of efficiency, reliability, and longevity for both professional and leisure use.
Easy Maintenance and Long-Term Serviceability
Routine maintenance is simple and accessible. All service points, including the oil filter, dipstick, water pump, and fuel filter, are located for easy reach. The flexible engine mounts minimize vibration and make installation faster and more secure, saving both time and cost during setup and servicing.
Warranty & Support
Each Yanmar 3YM30AE Marine Diesel Engine 29 hp purchased through JB Marine GmbH includes:
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12-month manufacturer’s warranty as standard
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Optional extended warranty and service plans
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Global Yanmar dealer support for repairs and spare parts
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Technical guidance for installation and troubleshooting
Global Shipping & Payment Options
JB Marine GmbH ships Yanmar engines worldwide within 3 – 5 business days after payment confirmation. We accept:
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Bank transfers (SEPA / SWIFT)
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PayPal and major credit cards
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Customized invoices and bulk order terms for commercial clients
Shipping times vary by region, contact our support team for real-time availability and delivery estimates.
Frequently Asked Questions (FAQs)
What boats are best suited for the Yanmar 3YM30AE?
Perfect for sailboats and light-duty motorboats between 28–36 feet, including cruising yachts, catamarans, and small commercial craft.
Is installation simple?
Yes. The engine’s compact design and flexible mounts allow for straightforward installation and smooth alignment, even in restricted engine bays.
What kind of fuel efficiency can I expect?
The 3YM30AE delivers outstanding fuel economy, especially at cruising RPMs, due to its indirect injection system and precise governor control.
Are parts and service available globally?
Absolutely. Yanmar’s international network ensures availability of genuine parts and authorized technicians around the world.
Order Your Yanmar 3YM30AE Today from JB Marine GmbH
Upgrade your vessel with one of the most dependable and efficient marine diesel engines ever built. At JB Marine GmbH, we provide professional sales support, installation guidance, and after-sales service to ensure your Yanmar 3YM30AE performs flawlessly from day one.
Contact JB Marine GmbH today for the latest pricing, stock availability, and expert advice on selecting the right engine for your boat.
Visit JB Marine GmbH Website to get a quote or speak with our marine engine specialists.









