Description

Vetus M4.56 Marine Diesel Engine 52HP – High-Performance 4-Cylinder Power

The Vetus M4.56 Marine Diesel Engine 52HP is one of the most capable mid-range Vetus inboard engines, designed for operators who need dependable power, smooth delivery, and fuel efficiency. As part of the respected M-Line, the M4.56 uses advanced marinization and a durable 4-cylinder build, making it suitable for sailing yachts, cabin cruisers, and demanding commercial marine applications.

Seawave Marine supplies the full Vetus range, from compact 2-cylinder engines to larger models like the M4.45 and the M4.56, making it easy to compare Vetus marine engines prices and find the best option for your vessel.

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Key Features & Benefits of the Vetus M4.56

1. Strong, Fuel-Efficient 52HP Performance

The M4.56 delivers:

  • 52HP at 3000 RPM

  • Smooth acceleration from its 4-cylinder configuration

  • Fuel consumption of 244 g/kW.h, reducing running costs

This engine offers an ideal balance of torque, efficiency, and reliability, giving it excellent real-world performance in a range of hull types.

2. Quiet Operation & Low Vibration

  • Indirect cooling system with optional keel cooling

  • Water-cooled aluminum top cover reduces temps by up to 15°C

  • Advanced Vetus air intake silences induction noise by ~5 dB(A)

Together, these features make the M4.56 one of the most refined engines in its power class.

3. Durable, Compact 4-Cylinder Design

  • Rugged marine-grade construction

  • Compact footprint ideal for tight engine rooms

  • Powerful 110A alternator supports modern marine electronics

The 4-cylinder configuration offers excellent torque at low RPM—perfect for cruisers and workboats.

4. Maintenance-Friendly & Easy to Install

  • Front-mounted service points for simple daily checks

  • Self-bleeding fuel system eliminates air block issues

  • Compatible with multiple gearboxes including TM345(A), ZF12M, ZF15MIV, and TMC60P

5. Versatile Applications & Full Certification

  • Suitable for leisure and heavy-duty commercial use

  • Compatible with shaft drive and optional saildrive

  • Fully compliant with EU-RCD II and SOLAS standards

Technical Specifications — Vetus M4.56 52HP

Specification Details
Max Output (Flywheel, ISO 3046-1) 38.3 kW (52 HP)
Max Output at Prop Shaft 37.1 kW (51 HP)
Max RPM 3000
Bore x Stroke 78 x 92 mm
Displacement 1758 cm³
Cylinders 4
Alternator 12V – 110A
Cooling System Indirect cooling (keel cooling optional)
Standard Gearbox TM345(A) 2/2.47:1
Optional Gearboxes ZF12M, ZF15MIV 2.13/2.99:1, TMC60P 2/2.5:1
Dry Weight 199 kg
Max Installation Angle 15°
Max Lateral Inclination (Continuous) 25°
Max Lateral Inclination (5 min) 30°
Fuel Pump Suction Height 1.5 m
Engine Alarms Oil pressure, coolant & exhaust temp, charging current
Control Lights Pre-heat
Calorifier Kit Optional
Certification EU-RCD II, SOLAS

Why Buy the Vetus M4.56 from Seawave Marine?

At Seawave Marine, we specialize in genuine Vetus marine diesel engines for sale, ensuring every engine is delivered with manufacturer certification and full warranty.

You receive:

  • 100% authentic Vetus marine diesel engine
  • Full 5-year manufacturer warranty
  • Expert selection advice
  • Competitive Vetus marine engines prices
  • Global shipping (EU, Germany, & international)
  • Technical support, spare parts & servicing

Whether you’re comparing this model to the Vetus M4.45 or reviewing different small and mid-range marine diesel options, Seawave Marine provides unbiased guidance based on real-world marine engineering experience.

Warranty Information

Standard Warranty

  • 5 Years or 1500 Operating Hours

Extended Warranty

Available upon request.

Warranty covers:

  • Manufacturing defects

  • Engine performance issues

  • Genuine parts & components

For claims or service support, contact the Seawave Marine technical team.

Frequently Asked Questions

1. What is the price of the Vetus M4.56 Marine Diesel Engine 52HP?

The vetus m4 56 marine diesel engine 52hp price varies depending on gearbox choice and configuration. Contact Seawave Marine for an exact quotation.

2. Is the Vetus M4.56 suitable for commercial vessels?

Yes—its torque, smooth operation, and efficiency make it ideal for commercial and leisure boats.

3. Is a Vetus M4.56 manual or manual PDF available?

Yes. Seawave Marine provides the Vetus M4.56 manual and manual PDF upon purchase.

4. How does the M4.56 compare to the Vetus M4.45?

The M4.56 provides higher torque and horsepower, making it better for heavier displacement boats or demanding operations.

5. Is this engine included in Vetus diesel engine review summaries?

The M4.56 frequently receives strong reviews for reliability, ease of service, and long-term durability.

6. Do you ship internationally?

Yes—Standard, Express, and Freight options available worldwide.

Order Your Vetus M4.56 Marine Diesel Engine 52HP Today

If you need a powerful, efficient, and long-lasting Vetus marine diesel engine, the M4.56 is one of the best in its class.

Contact Seawave Marine today for pricing, manuals, expert advice, and global delivery.