Vetus M4.56 Marine Diesel Engine with Sail Drive – 52 HP of Reliable, Quiet Power | JB Marine GmbH
At JB Marine GmbH, we proudly offer the Vetus M4.56 Marine Diesel Engine with Sail Drive, a compact yet powerful 52 HP propulsion solution engineered for reliability, fuel efficiency, and smooth sailing performance. Designed specifically for sailboats, small commercial vessels, and offshore cruisers, this modern 4-cylinder diesel engine combines low vibration levels, quiet operation, and outstanding maneuverability, ideal for both leisure and professional applications.
As an official supplier of Vetus marine diesel engines in Germany and Europe, JB Marine GmbH provides full technical support, warranty coverage, and professional installation for every Vetus engine.
High-Performance Power Meets Seamless Sailing
The Vetus M4.56 Marine Diesel Engine delivers a perfect balance between efficiency and power, offering 38 kW (52 HP) at 3000 RPM. Built with precision by Vetus, a globally respected name in marine propulsion, this engine ensures steady cruising power with low fuel consumption, helping you cover more miles while reducing emissions.
Optimized for Sail Drive Applications
The M4.56 is compatible with the Vetus SP60 or SD10 Sail Drive systems, providing effortless control and exceptional efficiency. This configuration delivers:
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Smooth, vibration-free propulsion for a quieter onboard experience
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Reduced drag for better fuel efficiency and speed
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Enhanced low-speed maneuverability for docking and harbor navigation
Whether you’re refitting a classic sailboat or upgrading to a modern propulsion system, the M4.56 with Sail Drive offers the perfect blend of innovation and reliability.
Powerful, Efficient, and Built for the Open Sea
Engineered for durability and simplicity, the Vetus M4.56 is powered by a four-cylinder, 1.758-litre diesel engine with a self-bleeding fuel system that ensures easy starting after service or refueling. Its marine-grade construction and front-mounted service points make it a favorite among professional boatbuilders and captains who demand long-term performance with minimal maintenance.
Key Benefits:
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52 HP at 3000 RPM: Reliable propulsion power for sailboats and small marine vessels
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Exceptional fuel efficiency: Low operating costs and eco-friendly performance
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Reduced maintenance: Fewer hose connections minimize leak risks
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Front-mounted service access: Simplifies oil, fuel, and impeller checks
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Low vibration and noise: A quiet, comfortable sailing experience
Advanced Cooling and Noise Reduction Technology
Comfort and efficiency are central to the Vetus design philosophy. The M4.56 Marine Diesel Engine features a water-cooled aluminum top cover, which lowers engine temperature by up to 15°C, ensuring consistent performance under demanding conditions.
Additional design improvements include:
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Indirect cooling system with optional keel cooling
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Enhanced air intake filtration for lower induction noise
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Noise reduction up to 5 dB(A) for a quieter, more relaxing voyage
High Electrical Output and Smart Marine Power Management
Every Vetus M4.56 engine comes standard with a 110 Amp alternator, providing rapid battery charging even under heavy load. For vessels with multiple electrical systems, an optional second alternator can be installed — ideal for modern yachts equipped with navigation systems, refrigerators, and onboard electronics.
Fully compliant with the EC Machinery Directive and EU-RCD II safety standards, this engine meets the highest benchmarks in marine engineering excellence.
Technical Specifications – Vetus M4.56 Marine Diesel Engine
| Specification | Details |
|---|---|
| Maximum Output at Flywheel (ISO 3046-1) | 38 kW (52 HP) |
| Max. Output at Propeller Shaft (ISO 3046-1) | 37.1 kW (51 HP) |
| Number of Cylinders | 4 |
| Bore × Stroke | 78 × 92 mm |
| Displacement | 1,758 cm³ |
| Alternator | 12 V – 110 Amp |
| Cooling System | Indirect cooling (keel cooling optional) |
| Sail Drive Options | SP60 2.15/2.38:1 – SD10 2.23/2.49 |
| Optional Engine Bed | GRP bed for SP60 or SD10 |
| Installation Angle (Backwards) | 15° max |
| Lateral Inclination (Continuous) | 25° max |
| Dry Weight | 199 kg |
| Alarms | Oil pressure, coolant/exhaust temperature, charging current |
| Control Lights | Pre-heating indicator |
| Certifications | EU-RCD II, SOLAS compliant |
Reliability, Safety, and Ease of Maintenance
The Vetus M4.56 is engineered with front-service accessibility, allowing fast checks of oil, filters, and impeller without complex disassembly. Minimal hose connections reduce the likelihood of leaks and improve overall system reliability — a major advantage for offshore cruising.
Vetus’ heavy-duty marine components are corrosion-resistant, and each engine is tested under rigorous marine conditions to ensure long-lasting performance. Whether navigating coastal waters or extended offshore passages, the M4.56 delivers peace of mind with every journey.
Electrical and Auxiliary Options
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Dual alternator setup (ideal for yachts with high electrical demand)
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Optional calorifier connection kit for hot-water generation
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Compatible with multiple gearbox configurations:
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TM345(A) (Standard)
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ZF12M (2.14:1)
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ZF15MIV (2.13/2.99:1)
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TMC60P (2/2.5:1)
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These customization options make the Vetus M4.56 one of the most adaptable engines in its class.
Vetus M4.56 Warranty Coverage
All Vetus engines supplied by JB Marine GmbH include comprehensive factory warranty protection:
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Standard Warranty: 5 years / 1,500 operating hours (whichever occurs first)
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Extended Warranty: Available upon request
Our customers enjoy complete after-sales support, access to genuine Vetus spare parts, and authorized service for maintenance and diagnostics.
Why Choose JB Marine GmbH for Your Vetus Diesel Engine
As a leading German and European supplier of Vetus marine engines, JB Marine GmbH delivers genuine Vetus power systems at competitive prices, backed by technical expertise and fast international logistics.
Our Advantages:
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Official Vetus dealer with factory warranty
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Professional installation and commissioning support
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Fast delivery across Germany, the EU, and global ports
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Full after-sales service and spare parts availability
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Expert advice from certified marine engineers
When you buy a Vetus diesel engine from JB Marine GmbH, you’re investing in European marine excellence, supported by decades of experience and a reputation for reliability.
Order Your Vetus M4.56 Marine Diesel Engine with Sail Drive Today
Looking for a Vetus diesel engine for sale in Germany or Europe? The Vetus M4.56 52 HP Marine Diesel Engine with Sail Drive is available now from JB Marine GmbH.
We offer personalized quotes, global delivery, and installation guidance for every order. Experience the perfect combination of quiet performance, dependable power, and low maintenance with one of the world’s most trusted marine engines.
Visit JBMarineGmbH.de to request pricing, discuss configurations, or order your Vetus M4.56 Marine Diesel Engine today.
