Vetus M4.45 Marine Diesel Engine with Sail Drive – 33 HP

High-Performance Inboard Diesel Engine for Efficient, Reliable Marine Propulsion | JB Marine GmbH

The Vetus M4.45 Marine Diesel Engine with Sail Drive – 33 HP is a fuel-efficient, durable, and low-maintenance inboard diesel engine, purpose-built for sailing yachts, cabin cruisers, and small fishing boats. Combining Dutch engineering precision with modern marine technology, this powerhouse from the Vetus M-Line Series ensures smooth, quiet performance, optimal fuel efficiency, and long-term dependability.

At JB Marine GmbH, we are proud to supply genuine Vetus marine diesel engines across Germany and Europe, backed by competitive pricing, professional installation advice, and full manufacturer warranty support.

Whether you are repowering an existing vessel or installing a new propulsion system, the Vetus M4.45 Sail Drive provides the perfect balance of power, silence, and sustainability for both leisure and professional applications.

Smooth & Efficient Marine Propulsion

With 33 HP at 3000 RPM, the Vetus M4.45 delivers steady torque, refined acceleration, and outstanding reliability. Its advanced fuel injection system and Sail Drive configuration ensure optimum power transfer and fuel efficiency, making it one of the most economical marine diesels in its class.

Performance Advantages

• 33 HP at 3000 RPM – consistent, dependable propulsion for yachts and cruisers

• Sail Drive system – reduces drag and vibration, improving efficiency

• Optimized torque curve – responsive power for smooth cruising and maneuvering

• Low emissions and noise output – compliant with modern EU marine standards

• Precision engineering – built for reliability under continuous operation

The M4.45 ensures powerful yet quiet cruising, ideal for extended voyages and everyday marine use.

Advanced Cooling System for Maximum Engine Longevity

The Vetus M4.45 Sail Drive features an indirect freshwater cooling system as standard, designed to maintain consistent engine temperatures and prevent corrosion. An optional keel cooling system further enhances durability, especially in saltwater conditions.

Cooling System Benefits

• Indirect cooling – reduces internal corrosion and extends component lifespan

• Optional keel cooling – eliminates seawater contact for superior longevity

• Stable engine temperature – optimized performance under varying conditions

• Low-maintenance design – minimizes scaling, fouling, and system blockages

Built to perform in all marine environments, this engine ensures maximum reliability and minimal wear over years of operation.

Ultra-Quiet & Low-Vibration Operation

Comfort and smoothness are the hallmarks of Vetus engines, and the M4.45 Sail Drive is no exception. Its balanced four-cylinder configuration and sound-dampening innovations ensure near-silent cruising and exceptional onboard comfort.

Noise & Comfort Features

• Cast aluminum top cover – absorbs radiant heat and lowers surface temperature

• Noise reduction up to 5 dB(A) – for whisper-quiet performance at cruising speeds

• Balanced cylinder design – minimizes vibration and improves stability

• Low resonance transmission – reduced mechanical stress on hull structures

Perfect for leisure yachts and passenger vessels, this engine guarantees a peaceful and enjoyable voyage.

Easy Maintenance & Operator-Friendly Design

The Vetus M4.45 is engineered for ease of access and simplicity. Front-mounted service points make routine maintenance fast and straightforward, ideal for both private owners and professional operators.

Maintenance Advantages

• Front access to oil dipstick, fuel filters, and impeller

• Fewer hose connections – minimizing the risk of leaks

• Self-bleeding fuel system – quick and clean fuel filter changes

• Heavy-duty materials – built for longevity in marine conditions

Its low-maintenance design helps reduce downtime and extends service intervals, keeping your vessel ready to sail when you are.

High Electrical Output for Modern Marine Power Needs

The M4.45 includes a 12V 110A alternator as standard, ensuring quick battery charging and reliable power for all onboard systems. For vessels with high electrical demand, an optional second alternator is available.

Electrical & Safety Highlights

• High-output alternator – reliable charging for navigation, lighting, and electronics

• Optional dual-alternator setup – supports power-hungry onboard systems

• Integrated safety monitoring – includes oil pressure, coolant temperature, and charge alarms

• Pre-heating control light – improves cold start reliability

This configuration ensures uninterrupted power for both essential and luxury onboard equipment.

Technical Specifications – Vetus M4.45 Marine Diesel Engine with Sail Drive

Comprehensive Warranty & Technical Support – JB Marine GmbH

All Vetus engines supplied by JB Marine GmbH include a 5-year limited manufacturer warranty or 1,500 operating hours (whichever comes first).

Warranty Coverage Includes:

•  5 Years / 1,500 Hours Standard Warranty

•  Optional Extended Warranty Packages

•  Authorized Vetus Service & Diagnostic Support

•  Genuine Vetus Spare Parts and Maintenance Kits

Our dedicated marine engineering team provides expert advice, technical documentation, and full warranty assistance to keep your engine running flawlessly.

Why Choose JB Marine GmbH for Your Vetus Diesel Engine

JB Marine GmbH is an official European distributor of Vetus marine propulsion systems, specializing in marine diesel engines, Sail Drive systems, and replacement components. We combine technical expertise with personalized service for every customer — from private yacht owners to commercial operators.

Our Competitive Advantages

• Authorized Vetus Dealer – 100% genuine, certified engines

• Professional Installation Support – configuration, Sail Drive alignment, and setup guidance

• Fast Delivery – throughout Germany, Europe, and international ports

• Comprehensive After-Sales Service – spare parts, warranty, and maintenance support

• Customer-Focused Approach – expert technical consultation before and after purchase

We ensure every Vetus engine we deliver is professionally supported, competitively priced, and fully certified for performance and safety.

Order Your Vetus M4.45 Marine Diesel Engine with Sail Drive – 33 HP Today

Looking for a compact, efficient, and quiet marine diesel engine that offers world-class performance and reliability? The Vetus M4.45 Sail Drive Engine from JB Marine GmbH is your best choice for efficient marine propulsion, easy maintenance, and lasting value.

Visit JBMarineGmbH.de to request a quote, review configurations, or speak with one of our marine engine specialists today.

Experience premium Vetus engineering — with the confidence, expertise, and full-service support of JB Marine GmbH.