Volvo Penta D2-50 MS25L Marine Engine – 50 HP | JB Marine GmbH Germany

Discover dependable marine power with the Volvo Penta D2-50 MS25L – a proven 4-cylinder marine diesel engine engineered for smooth performance, outstanding torque, and long-term reliability.
Available from JB Marine GmbH, Germany’s trusted supplier of Volvo Penta marine engines, this 50 HP model delivers the perfect balance of fuel efficiency, quiet operation, and durability for both leisure and commercial vessels.

Precision-Engineered for Reliability & Performance

Built on Volvo Penta’s heritage of innovation and marine expertise, the D2-50 MS25L combines advanced diesel engineering with practical simplicity.
This naturally aspirated, in-line 4-cylinder engine is optimized for high torque at low RPM, giving boat owners strong acceleration, excellent load-carrying ability, and responsive handling even under challenging conditions.

Key Advantages

• 50 HP (37.5 kW) at 3000 RPM for reliable propulsion power

• High torque at low RPM for maneuvering in marinas or tight channels

• Mechanical fuel injection for dependable, easy-to-service performance

• Compact design for effortless installation in a wide range of hulls

Whether powering a sailing yacht, workboat, or coastal cruiser, the D2-50 delivers power you can depend on.

Smooth, Quiet & Comfortable Operation

Volvo Penta designed the D2-50 MS25L for low vibration and minimal noise, ensuring exceptional onboard comfort during long voyages.

Comfort Features

• Dynamically balanced engine and precision engine mounts

• Advanced rubber isolation to minimize vibration transfer

• Inlet air silencer for reduced induction noise

• Quiet running at all speeds for improved onboard experience

Sail farther and enjoy quieter cruising, with Volvo Penta comfort engineered into every detail.

High Marine Torque & Responsive Maneuverability

The D2-50 produces high torque at low RPM, delivering the immediate thrust needed for docking, tight-space navigation, or adverse sea conditions.
This characteristic makes it the ideal engine for skippers who demand power and precision when it matters most.

• Quick acceleration in demanding waters

• Steady thrust under heavy load

• Confidence when maneuvering in confined areas

With the D2-50 MS25L, every movement feels controlled and deliberate.

Solid, Marine-Grade Construction

Built to withstand the toughest marine environments, the Volvo Penta D2-50 features a one-piece cylinder head and a rigid cast-iron block that ensure strength, balance, and long-term durability.

Durability Highlights

• Marine-grade materials resistant to corrosion and stress

• Reinforced engine block for continuous operation

• Optimized cooling for longevity in salt- and freshwater

This design guarantees years of dependable service with minimal maintenance.

Efficient Charging System for Modern Onboard Power

Equipped with a 115 A high-output alternator, the D2-50 keeps your electrical systems running efficiently — even at idle.

Electrical Performance

• 35 A charging at idle speed

• 100 A+ charging at cruising RPM

• Ideal for powering navigation electronics, lights, and onboard amenities

Never worry about battery drain, Volvo Penta’s alternator technology ensures steady, reliable energy delivery.

Freshwater Cooling System for Extended Engine Life

Unlike raw-water-cooled systems, the D2-50 MS25L features a standard freshwater cooling circuit that minimizes internal corrosion and stabilizes operating temperatures.

Cooling Advantages

• Consistent engine temperature across all loads

• Reduced internal corrosion and scale build-up

• Extended engine life and simplified servicing

This closed-loop system protects your investment for years of smooth, efficient operation.

Easy Maintenance & Low Operating Costs

Every aspect of the D2-50 MS25L is designed for service accessibility and ease of use, minimizing downtime and reducing total ownership costs.

• All service points are positioned on one side of the engine

• Optional fuel pre-filter for added protection

• Genuine Volvo Penta parts ensure long-term reliability

Routine maintenance becomes simple, saving both time and money while maximizing performance.

Technical Specifications – Volvo Penta D2-50 MS25L

Warranty Coverage by JB Marine GmbH

All Volvo Penta marine engines sold by JB Marine GmbH include the official Volvo Penta manufacturer warranty, covering materials and workmanship.

Standard Warranty

• 3 Years or 1,000 Operating Hours (whichever comes first)

Extended Warranty

• Available up to 5 Years for added coverage and peace of mind

Our after-sales specialists handle all registration, diagnostics, and warranty claims directly with Volvo Penta service centers.

Frequently Asked Questions (FAQ)

Is the Volvo Penta D2-50 MS25L suitable for commercial use?

Yes — this engine is widely used in both leisure and light commercial vessels for its reliability, torque, and low maintenance demands.

How does it compare to other Volvo Penta engines?

The D2-50 offers excellent fuel efficiency and torque in a compact package, making it an ideal mid-range option between Volvo Penta’s smaller and 6-cylinder models.

Can I order genuine Volvo Penta parts and accessories?

Yes — all engines from JB Marine GmbH include genuine Volvo Penta parts, ensuring optimal performance and warranty compliance.

Do you offer international shipping?

Yes, we ship across Germany, Europe, and internationally with standard, express, and freight options.

Does JB Marine GmbH provide installation support?

Absolutely, our certified technicians offer professional installation and commissioning services for all Volvo Penta marine engines.

Why Choose JB Marine GmbH for Volvo Penta Engines?

• Authorized Volvo Penta Dealer in Germany

• Certified after-sales service and technical support

• Competitive pricing and OEM warranty coverage

• Fast, insured global shipping

• Expert consultation for repowering and new builds

From sales to service, JB Marine GmbH is your complete partner for Volvo Penta marine propulsion solutions.

Order Your Volvo Penta D2-50 MS25L Marine Engine Today

Looking for a proven 50 HP marine diesel engine?
Contact JB Marine GmbH for expert advice, competitive pricing, and worldwide delivery of the Volvo Penta D2-50 MS25L.