Volvo Penta D11-725 Marine Diesel Engine – 725 HP of Precision, Power, and Endurance by JB Marine GmbH

High-Performance Inboard Propulsion Engineered for Power, Reliability, and Efficiency

The Volvo Penta D11-725 Marine Diesel Engine is a top-tier 6-cylinder, 10.8-liter inboard diesel engine built to deliver 725 horsepower (537 kW) with exceptional torque, fuel efficiency, and smooth performance. Featuring advanced common-rail fuel injection, overhead camshaft design, and a twin-entry turbocharger with charge-air cooling, the D11-725 provides rapid acceleration, superior maneuverability, and outstanding long-range cruising power.

As a core model in the Volvo Penta D-series marine lineup, the D11-725 combines commercial-grade durability with refined onboard comfort, making it the perfect propulsion system for luxury yachts, patrol craft, passenger ferries, and high-speed workboats.

Engineered for Demanding Marine Performance

The D11-725’s robust cast-iron design and advanced engine management ensure reliability and consistent output under all operating conditions.

Technical Overview

• Rated Power: 725 HP (537 kW) @ 2250 rpm

• Configuration: 6-cylinder, in-line diesel

• Displacement: 10.8 liters

• Aspiration: Twin-entry turbo with charge-air cooler

• Fuel System: Electronic Unit Injectors (EUI)

• Control System: Electronic Vessel Control (EVC)

• Cooling: Freshwater heat-exchanger system

• Compliance: IMO NOx Tier II, EU RCD Stage II, EPA Tier 3

Every component is engineered for maximum durability, smooth operation, and efficient power delivery across extended marine duty cycles.

High Marine Torque for Superior Control

Delivering instant torque from low RPM, the D11-725 offers fast acceleration, steady cruising, and superb maneuverability in all sea conditions.

• Strong low-end torque enhances responsiveness during docking or tight turns.

• High load-carrying capacity ensures consistent power under heavy displacement.

• Precise fuel mapping maintains balance between performance and fuel economy.

This makes the engine ideal for performance yachts and commercial vessels that demand immediate thrust and smooth cruising capability.

Optimized Fuel Efficiency and Environmental Compliance

Volvo Penta’s common-rail fuel injection system precisely meters fuel for clean, efficient combustion, reducing both fuel burn and emissions.

• Up to 10–15% lower fuel consumption compared to older mechanical systems

• Reduced smoke and exhaust odor for cleaner operation

• Full compliance with IMO Tier II, EPA Tier 3, and EU RCD Stage II

You’ll experience maximum range, reduced operational costs, and environmentally responsible performance.

Integrated Electronic Vessel Control (EVC)

The EVC system synchronizes all propulsion and onboard systems into one seamless interface for precise handling, diagnostics, and monitoring.

EVC System Highlights

• Single-Lever Mode: Unified control of multiple engines

• Cruise Control: Optimize fuel usage for long-distance travel

• Glass Cockpit Integration: Centralized data and engine feedback

• Smart Safety Systems: Built-in redundancy for operational security

This intelligent control network ensures smooth handling, reliable data feedback, and enhanced safety on every voyage.

Quiet, Smooth, and Comfortable Operation

Volvo Penta has engineered the D11-725 to deliver remarkably low vibration and noise levels, ensuring onboard comfort and minimal disruption.

• Twin-entry turbo and optimized combustion reduce engine noise

• Water-cooled exhaust manifold lowers acoustic output

• Advanced engine mounts isolate vibration for a stable, quiet ride

The result: luxury-grade comfort combined with commercial-grade reliability.

Freshwater Cooling for Extended Engine Life

The closed-loop cooling system maintains optimal temperature balance, preventing internal corrosion and extending service life.

• Heat-exchanger design ensures consistent thermal performance

• Internal corrosion protection for long-term reliability

• Simplified maintenance with front-mounted service points

This system guarantees long-term dependability and stable performance even in challenging saltwater environments.

Rugged Construction, Proven Endurance

With a cast-iron block and cylinder head, the D11-725 is built for heavy-duty operation in commercial and luxury applications.

• Designed for continuous operation under high load

• Reinforced crankshaft and pistons ensure consistent performance

• Marine-grade materials resist corrosion and thermal stress

It’s the perfect choice for operators who value strength, reliability, and long service intervals.

Ease of Maintenance and Global Support

Volvo Penta’s modular design allows quick access to all key service points, minimizing downtime and simplifying upkeep.

• Centralized filters and oil service points

• Wide service network and parts availability through JB Marine GmbH

• Extended maintenance intervals reduce lifecycle cost

Pair your investment with genuine Volvo Penta parts for long-lasting, trouble-free operation.

Technical Specifications – Volvo Penta D11-725

Ideal Applications

The Volvo Penta D11-725 is suited for operators demanding dependable, high-output propulsion in a variety of marine vessels.

Best Suited For:

• High-performance leisure yachts

• Patrol and pilot boats

• Commercial passenger vessels

• Offshore service and utility craft

• Luxury sport cruisers

With its superior torque curve, fuel economy, and electronic integration, this engine delivers performance and comfort in perfect balance.

Warranty and After-Sales Support by JB Marine GmbH

When you purchase your D11-725 from JB Marine GmbH, you receive factory-certified warranty coverage and expert European-based support.

Why Choose JB Marine GmbH

• Official Volvo Penta distributor and service partner in Europe

• Expert consultation for system selection and installation

• Access to genuine Volvo Penta parts and accessories

• Fast, secure delivery across Germany and the EU

Your engine investment is supported by professionals who understand precision marine engineering from start to finish.

Frequently Asked Questions (FAQ)

What is the price of the Volvo Penta D11-725?
Pricing varies based on configuration and vessel type. Contact JB Marine GmbH for a detailed quotation.

Is the D11-725 suitable for commercial use?
Yes — it’s designed for both heavy-duty commercial service and high-performance leisure use, providing strength and reliability under demanding conditions.

Does it come with Volvo Penta parts?
Absolutely. All engines from JB Marine GmbH include genuine Volvo Penta components backed by full manufacturer warranty.

How can I order?
Visit JBMarineGmbH.de or contact our technical sales department for assistance and purchase options.

Do you offer international shipping?
Yes — JB Marine Egines delivers across Germany, Europe, and select international markets, including freight options for large marine systems.

Order Your Volvo Penta D11-725 Marine Diesel Engine Today

Power your vessel with the unrivaled strength, precision, and efficiency of the Volvo Penta D11-725, available through JB Marine GmbH, Europe’s trusted Volvo Penta marine engine specialist.

👉 Visit JBMarineGmbH.de to request technical documentation, a custom quote, or installation consultation.
Trust JB Marine GmbH — your official partner for Volvo Penta marine diesel engines, EVC systems, and genuine OEM parts.