Vetus M4.45 Marine Diesel Engine – 33 HP | Reliable, Fuel-Efficient & Powerful Inboard Diesel Engine
The Vetus M4.45 Marine Diesel Engine (33 HP) is a compact, efficient, and heavy-duty inboard engine from the globally trusted Vetus M-Line series, engineered to deliver exceptional reliability, smooth performance, and minimal fuel consumption.
Designed for sailing yachts, cabin cruisers, and light commercial boats, this 4-cylinder marine engine combines quiet operation, low emissions, and proven fuel efficiency, making it one of the best choices for both leisure and professional marine applications.
Whether you’re upgrading your propulsion system, replacing an older engine, or outfitting a new build, the Vetus M4.45 is the ideal solution for long-term dependability and operational economy.
Dependable Power with Efficient Performance
Delivering 33 HP at 3000 RPM, the M4.45 offers a perfect balance of torque, responsiveness, and fuel efficiency.
Built on Vetus’s proven marine engineering principles, this engine ensures powerful acceleration, steady cruising speeds, and excellent control, even under load.
The optimized fuel injection system enhances combustion efficiency, reducing fuel consumption and extending range, ideal for long-distance sailing and extended voyages.
Key Features & Benefits
Robust & Fuel-Efficient Performance
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Produces 33 HP at 3000 RPM, ensuring reliable thrust for various marine vessels.
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Optimized injection system for improved combustion and reduced fuel use.
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Constructed from marine-grade, corrosion-resistant materials for long service life.
Advanced Cooling System – Maximum Engine Protection
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Indirect cooling system standard, with optional keel cooling for enhanced corrosion resistance.
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Maintains optimal engine temperature, improving longevity and preventing overheating.
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Ideal for both freshwater and saltwater applications.
Ultra-Quiet Operation & Low Vibration
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Water-cooled aluminum top cover reduces engine heat by up to 15°C.
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Redesigned air intake filter lowers noise levels by ~5 dB(A).
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Balanced four-cylinder configuration minimizes vibration for smooth sailing comfort.
Easy Maintenance & Service Access
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Front-facing service points for quick access to oil, filters, and the impeller.
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Fewer hose connections reduce the risk of leaks and simplify maintenance.
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Self-bleeding fuel system eliminates airlocks and speeds up fuel system servicing.
High Electrical Output for Onboard Systems
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Standard 12V 110A alternator ensures fast charging and power stability.
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Optional second alternator for boats with advanced electronics or dual-battery setups.
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Integrated safety alarms and warning lights for oil pressure, temperature, and voltage.
Technical Specifications
| Specification | Details |
|---|---|
| Max. Output at Flywheel (ISO 3046-1) | 30.9 kW (42 HP) |
| Max. Output at Propeller Shaft (ISO 3046-1) | 30 kW (40.8 HP) |
| Rated Power Output | 33 HP @ 3000 RPM |
| Number of Cylinders | 4 |
| Bore × Stroke (mm) | 78 × 92 |
| Displacement | 1758 cm³ |
| Alternator | 12V – 110A |
| Cooling System | Indirect (Keel Cooling Optional) |
| Standard Gearbox | TMC60P (2/2.5/2.94:1) |
| Optional Gearboxes | ZF12M (2.14/2.63:1), TMC60A (2/2.5:1) |
| Dry Weight | 199 kg |
| Max Installation Angle (Backwards) | 15° |
| Max Continuous Inclination Angle | 25° |
| Max Short-Term Inclination (5 min) | 30° |
| Fuel Lift Pump Suction Height | 1.5 m |
| Alarms for | Oil Pressure, Coolant Temp, Exhaust Temp, Charging |
| Control Lights for | Pre-Heating |
| Calorifier Kit | Optional |
| Certifications | EU-RCD II, BSO, SOLAS |
Why Choose the Vetus M4.45 from JB Marine GmbH
At JB Marine GmbH, we supply authentic Vetus marine diesel engines with full manufacturer warranties, competitive pricing, and global shipping.
Our expertise ensures that every Vetus engine is professionally configured, tested, and supported — giving you the confidence of world-class propulsion performance.
What Sets JB Marine GmbH Apart
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Genuine Vetus M4.45 Marine Diesel Engine (33 HP) with verified serial number.
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5-Year Warranty or 1500 operating hours, whichever comes first.
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Expert consultation on engine selection, installation, and configuration.
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Fast & insured worldwide delivery, including Europe and international ports.
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Dedicated post-purchase support with genuine Vetus parts and accessories.
Warranty Coverage
Each Vetus diesel engine from JB Marine GmbH comes with a 5-year / 1500-hour limited warranty, ensuring peace of mind and lasting reliability.
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Standard Warranty: 5 Years or 1500 Operating Hours.
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Extended Warranty: Available upon request.
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Support: Includes full assistance with registration, claims, and spare parts ordering.
Frequently Asked Questions (FAQ)
What is the price of the Vetus M4.45 Marine Diesel Engine?
Pricing depends on configuration, gearbox options, and accessories. Contact JB Marine GmbH for the latest offers and availability.
Is the Vetus M4.45 fuel-efficient?
Yes. It uses an optimized injection system and self-bleeding fuel setup for maximum fuel economy and consistent performance.
What type of cooling system does this engine have?
It comes with indirect cooling as standard, with an optional keel cooling system for enhanced saltwater durability.
Is this engine suitable for both sailboats and motorboats?
Absolutely. The Vetus M4.45 delivers smooth, quiet power that’s ideal for sailing yachts, cabin boats, and small commercial craft.
Do you offer international delivery?
Yes — we provide secure global shipping with standard, express, and freight options.
Order Your Vetus M4.45 Marine Diesel Engine Today
Discover reliable power, fuel efficiency, and marine-grade performance with the Vetus M4.45 Marine Diesel Engine – 33 HP.
Contact JB Marine GmbH today for pricing, configuration support, and worldwide shipping options.
Visit https://jbmarinegmbh.de/ to explore our full selection of Vetus marine diesel engines for sale, including compact, keel-cooled, and sail drive models.
