Vetus M3.29S Marine Diesel Engine with Sail Drive: Next-Gen 27hp Power
The Perfect Balance of Three-Cylinder Performance and Integrated Saildrive Efficiency
Introduction
The newly redesigned Vetus M3.29S marine diesel engine with integrated sail drive represents the ideal fusion of modern propulsion technology and practical, space-saving design. This complete 27hp saildrive package incorporates all the revolutionary features of the next-generation M-line—including dramatic heat and noise reduction—into a compact three-cylinder platform that is perfectly suited for mid-size cruising sailboats. At Wave Inboard Motors, our hands-on experience with this system confirms it as a top-tier choice for sailors seeking a hassle-free, high-performance repower.
This 27hp saildrive package is the ultimate solution for performance cruisers and sailing yachts from 32 to 38 feet. The innovative cast aluminium top cover reduces engine room temperatures by up to 20% (15°C), while the new acoustic engineering ensures “near silent” operation at cruising RPM. The integrated sail drive configuration guarantees optimal propeller angle for maximum thrust and exceptional astern handling. For a repower that delivers a perfect blend of Vetus’s next-generation comforts and the practical advantages of a saildrive, the Vetus M3.29S for sale stands out as a sophisticated and intelligent choice.
This guide details its groundbreaking features, specifications, and the compelling benefits of this integrated system.
Technical Specifications Table (Complete Package)
| Specification | Detail |
|---|---|
| Model | Vetus M3.29S (Engine & Saildrive) |
| Engine Type | 3-Cylinder, 4-stroke, water-cooled diesel |
| Displacement | 0.952 L (952 cc) |
| Max Output (Flywheel) | 27 HP (20 kW) @ 3600 RPM |
| Max Output (Prop Shaft) | 26.2 HP (19.3 kW) @ 3600 RPM |
| Bore x Stroke | 76 mm x 70 mm |
| Cooling System | Heat Exchanger (Closed-Cooling) |
| Starting System | 12V Electric Start |
| Alternator Output | 12V – 75A (High-Output Standard) |
| Saildrive Unit | SP60 (2.38:1) or SD10 (2.49:1) |
| Certification | EU-RCD II, BSO, SOLAS |
| Key Feature | Water-Cooled Aluminium Top Cover |
Next-Gen Saildrive vs. Traditional Shaft Drive
| Feature | Vetus M3.29S (Saildrive) | Traditional Shaft Drive |
|---|---|---|
| Installation | Simplified. One integrated unit, no complex alignment. | Complex. Requires precise engine-to-shaft alignment. |
| Performance | ** Superior.** Optimal propeller angle for maximum efficiency. | Good, but efficiency can be lost to shaft angle. |
| Noise/Vibration | Very Low. Rubber-mounted drive leg isolates vibration. | More vibration can transfer through the rigid shaft. |
| Astern Handling | Excellent. Fixed, deep propeller provides predictable thrust. | Good, but can be less precise. |
| Space Saving | Excellent. Compact design allows for more cabin space. | Larger footprint due to engine placement constraints. |
| Maintenance | Requires Haulout for leg service/bellows replacement. | Shaft seal & bearing can often be serviced in water. |
Verdict: The Vetus M3.29S Saildrive package wins on integrated performance, ease of installation, and space efficiency. It is the premier choice for a modern hull or repower where maximizing interior space and achieving optimal propulsion efficiency are top priorities. The next-gen features for noise and heat reduction make it a more advanced living experience compared to a traditional shaft drive system.
Replacement Options Table
| Consideration | Rebuild Older Engine/Drive | Install M3.29S Saildrive Package | Install Shaft Drive Engine |
|---|---|---|---|
| Condition | Outdated, hot, noisy technology | State-of-the-art, cool, and quiet operation | New engine, but older installation concept |
| Comfort | Poor | Exceptional (Dramatically lower heat & noise) | Good |
| Performance | Declining | Excellent (Integrated, optimized thrust) | Very Good |
| Warranty | None | Full Warranty on Advanced System | Warranty on engine only |
| Total Project Value | Lowest (Investing in old tech) | Highest (Complete premium solution) | High (Engine, but added install complexity) |
Expert Recommendation: For a boat that is a candidate for a saildrive, the Vetus M3.29S complete package offers transformative value. You are not just getting a new engine; you are upgrading to a fully integrated, modern propulsion system that enhances every aspect of your time on the water. The combination of next-gen comfort features and saildrive practicality is unmatched. A professionally remanufactured unit makes this premium experience accessible at a more competitive price point.
Pros and Cons Table
| Pros | Cons |
|---|---|
| Dramatically Reduced Engine Room Heat | Saildrive leg requires haulout for service |
| “Near Silent” Operation at Cruising RPM | Vulnerable to damage from grounding |
| Excellent Service Accessibility | |
| High-Output 75A Alternator Standard | |
| Smooth Three-Cylinder Operation | |
| Space-Saving Integrated Design | |
| Superior Maneuverability |
Link to Our Core Service Pages:
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“Ensure a flawless integration with our certified 【Saildrive Installation Services】.”
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“Protect your investment with our specialized 【Saildrive Maintenance & Bellows Replacement】 service.”
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“Our experts can manage your entire 【Sailboat Repower Project】 from start to finish.”
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“We source and supply genuine 【Vetus Saildrive Parts】 and seals.”
Link to Informational Blog Posts:
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“Understand the key differences in 【Saildrive vs. Shaft Drive: A Complete Guide】.”
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“Is it the right time? Learn the 【5 Signs You Need a Marine Engine Repower】.”
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“Planning your project? We break down the 【Costs of Repowering a Sailboat】.”
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“We explain the critical factors in 【Choosing the Right HP for Your Sailboat Repower】.”
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