Vetus M3.29K Marine Diesel Engine – Keel-Cooled Model – 27 HP | Compact, Efficient & Reliable Inboard Power

The Vetus M3.29K Marine Diesel Engine (27 HP) is a compact, fuel-efficient, and low-maintenance inboard engine, perfectly suited for sailing yachts, canal boats, cabin cruisers, and light commercial vessels.

Designed with a three-cylinder configuration and keel cooling system, this model offers durable, corrosion-free performance, making it ideal for inland waterways, saltwater environments, and long-term operation with minimal upkeep.

As part of the acclaimed Vetus M-Line diesel engine range, the M3.29K combines Dutch precision engineering with modern marine efficiency, delivering smooth, quiet power and exceptional fuel economy in a lightweight, compact package.

Reliable Power for Small and Mid-Size Vessels

With 27 HP (20 kW) at 3600 RPM, the M3.29K offers the perfect balance of power and efficiency for a wide range of inboard applications.
Its strong torque curve ensures responsive acceleration and steady propulsion, even in challenging marine conditions, while its self-bleeding fuel system and low-emission combustion design guarantee reliable starts and eco-friendly operation.

The keel-cooled system eliminates seawater circulation, dramatically reducing corrosion and maintenance, ideal for riverboats, canal barges, and coastal vessels operating in sediment-rich or saltwater environments.

Key Features & Benefits

High Efficiency & Smooth Power Output

• Produces 27 HP at 3600 RPM, offering reliable propulsion for small to medium vessels.

• Strong low-end torque for effortless cruising and maneuvering.

• Designed for low emissions and fuel efficiency, meeting EU-RCD II and BSO standards.

• Self-bleeding fuel system ensures quick restarts after servicing.

Keel Cooling System – Corrosion-Free & Maintenance-Friendly

• Indirect cooling system standard; keel cooling option enhances reliability.

• Prevents seawater contact with the cooling circuit — no corrosion or pump scaling.

• Ideal for inland waterways, river cruisers, and saltwater conditions.

• Reduces maintenance costs and extends engine lifespan.

Quiet, Low-Vibration Operation

• Water-cooled aluminum top cover lowers engine temperature by ≈15°C.

• Redesigned air intake filter reduces noise by ≈5 dB(A).

• Counter-balanced cylinder design minimizes vibration for smooth operation.

Easy Maintenance & Extended Service Life

• Front-mounted service points for oil, fuel, and impeller access.

• Simplified design with minimal hose connections, reducing leak risks.

• Built with heavy-duty marine-grade components for lasting durability.

High Electrical Output for Modern Marine Systems

• 12V – 75A alternator provides fast battery charging.

• An optional second alternator supports auxiliary electrical systems.

• Integrated warning lights and safety alarms for oil pressure, temperature, and charging current.

Technical Specifications

Why Choose JB Marine GmbH for Your Vetus M3.29K

At JB Marine GmbH, we supply authentic Vetus marine diesel engines directly from the manufacturer, combining competitive pricing, expert support, and worldwide delivery.

Whether you’re refitting a sailboat or upgrading your inboard system, our marine propulsion specialists will help you choose the right configuration for performance, efficiency, and reliability.

What You Get with JB Marine GmbH

• Genuine Vetus M3.29K Marine Diesel Engine (Keel-Cooled Model – 27 HP)

• 5-Year Manufacturer Warranty (or 1500 operating hours)

• Expert technical consultation for selection and installation

• Fast, insured shipping across Germany, Europe, and international ports

• Access to genuine Vetus spare parts and full service support

Warranty Information

All Vetus diesel engines supplied by JB Marine GmbH include a 5-year / 1500-hour warranty, covering all manufacturing defects and performance issues.

• Standard Warranty: 5 Years / 1500 Hours

• Extended Warranty: Available on request

• Support: Assistance with registration, servicing, and spare parts

Frequently Asked Questions (FAQ)

What is the price of the Vetus M3.29K Marine Diesel Engine?
Prices vary based on configuration and gearbox selection. Contact JB Marine GmbH for a personalized quote.

Why choose keel cooling?
Keel cooling eliminates seawater exposure, prevents corrosion, and reduces maintenance — ideal for shallow, sediment-prone, or saltwater environments.

Is the Vetus M3.29K fuel-efficient?
Yes — its optimized combustion system ensures low fuel consumption and reduced emissions, while maintaining strong power delivery.

Does this model include a gearbox?
Yes. Standard gearbox: TMC40P (2 / 2.60:1). Optional gearboxes include ZF12M, ZF15MIV, and TMC60A for different vessel configurations.

Do you ship internationally?
Yes — JB Marine GmbH provides Standard, Express, and Freight shipping options globally, ensuring secure transport of all marine products.

Order Your Vetus M3.29K Marine Diesel Engine Today

Upgrade your vessel with the Vetus M3.29K (Keel-Cooled Model – 27 HP) — a reliable, quiet, and efficient inboard diesel engine engineered for lasting performance.

Contact JB Marine GmbH today for pricing, configuration details, and worldwide delivery options.

Visit https://jbmarinegmbh.de/ to explore our complete range of Vetus marine diesel engines for sale, including compact, mid-range, and high-output models.