Description

Volvo Penta D6-300I Marine Diesel Inboard Engine 300HP For Sale

The Volvo Penta D6-300I is a premium marine diesel inboard engine designed for cruising yachts, trawlers, offshore fishing vessels, commercial workboats, passenger craft, and marine repower projects requiring exceptional reliability, fuel efficiency, and smooth performance. Built on Volvo Penta’s renowned 5.5-liter inline six-cylinder platform, the D6-300I delivers 300 horsepower while maintaining the durability, operating economy, and long service life that have made the D6 Series one of the most respected marine propulsion platforms in the world.

Engineered specifically for marine applications, the D6-300I combines electronically controlled common-rail fuel injection, double overhead camshafts, turbocharging, and advanced Electronic Vessel Control technology to provide outstanding throttle response, strong marine torque, and excellent fuel economy across the operating range.

For vessel owners searching for a Volvo Penta D6-300I for sale, this engine remains a trusted propulsion solution for both recreational and commercial marine applications.

As a proven Volvo Penta marine engine, the D6-300I offers dependable performance, low operating costs, and exceptional long-term value.

Part of the Volvo Penta D6 Marine Engine Series

The Volvo Penta D6-300I belongs to Volvo Penta’s highly successful D6 Series of marine diesel engines. Developed to provide superior power density, fuel efficiency, and reliability, the D6 platform has become one of the most widely installed diesel propulsion systems in the marine industry.

The Volvo Penta D6 Inboard Series includes:

• Volvo Penta D6-300I
• Volvo Penta D6-330I
• Volvo Penta D6-370I
• Volvo Penta D6-400I
• Volvo Penta D6-435I
• Volvo Penta D6-480I

The D6-300I serves as an efficient entry point into the D6 inboard range, offering an excellent balance of performance, economy, and durability.

Advanced 5.5-Liter Inline Six-Cylinder Diesel Platform

At the heart of the D6-300I is Volvo Penta’s advanced 5.5-liter inline six-cylinder marine diesel engine.

Key technologies include:

• Electronically controlled common-rail fuel injection
• Double overhead camshafts (DOHC)
• Turbocharger with charge air cooler
• Advanced engine management system
• Precision fuel delivery technology

These features provide:

• Strong low-end torque
• Excellent fuel efficiency
• Immediate throttle response
• Reduced emissions
• Smooth operation
• Long-term durability

The advanced fuel system continuously optimizes combustion to maximize efficiency and performance under varying operating conditions.

High Performance with Smooth Operation

The Volvo Penta D6-300I has been engineered to deliver responsive acceleration and efficient cruising performance while maintaining exceptional onboard comfort.

Performance benefits include:

• Smooth power delivery
• Strong mid-range torque
• Excellent cruising characteristics
• Reduced vibration levels
• Lower engine noise
• Improved passenger comfort

The combination of advanced fuel injection and optimized engine design contributes to refined operation across the RPM range.

Unique Volvo Penta Marine Torque

One of the defining characteristics of the Volvo Penta D6 Series is its exceptional marine torque.

The D6-300I delivers:

• Strong low-RPM pulling power
• Increased load-carrying capability
• Excellent acceleration
• Reliable performance under load
• Consistent cruising speeds
• Superior vessel responsiveness

Whether operating offshore, carrying passengers, or navigating challenging sea conditions, the D6-300I provides dependable propulsion performance.

Compact and Robust Marine Design

Despite producing 300 horsepower, the D6-300I remains compact and easy to install.

Engine construction features include:

• Rigid cast-iron cylinder block
• Cast-iron cylinder head
• Heavy-duty engine cover
• Compact installation dimensions
• Easily accessible service points

This robust design contributes to outstanding reliability and simplifies maintenance throughout the engine’s service life.

Low Fuel Consumption and Reduced Operating Costs

Fuel efficiency is one of the major advantages of the Volvo Penta D6-300I.

The advanced common-rail fuel system continuously monitors operating conditions and optimizes fuel delivery for maximum efficiency.

Benefits include:

• Reduced fuel consumption
• Lower operating costs
• Extended cruising range
• Reduced emissions
• Improved ownership value

For operators seeking economical marine propulsion without sacrificing performance, the D6-300I provides an excellent balance between power and efficiency.

Electronic Vessel Control (EVC)

The Volvo Penta D6-300I comes equipped with Volvo Penta’s advanced Electronic Vessel Control system.

EVC features include:

• Engine monitoring
• Integrated diagnostics
• Electronic throttle and shift compatibility
• Instrumentation integration
• Maintenance scheduling
• Vessel systems management

The EVC platform improves operational control while simplifying maintenance and troubleshooting.

Long Service Life and Easy Maintenance

The D6-300I has been engineered to maximize uptime and simplify routine service.

Features include:

• Easily accessible service points
• Advanced filtration systems
• Durable internal components
• PTO capability
• Volvo Penta global support network

Combined with Volvo Penta-approved oils, lubricants, and coolants, the D6-300I is designed to provide years of dependable marine operation.

Common Applications

The Volvo Penta D6-300I is commonly installed in:

• Cruising yachts
• Trawlers
• Offshore fishing vessels
• Passenger boats
• Commercial workboats
• Patrol vessels
• Utility craft
• Marine repower projects

Its combination of fuel efficiency, durability, and smooth performance makes it suitable for a broad range of marine applications.

Why Choose the Volvo Penta D6-300I for Repower Projects?

The D6-300I is a popular repower solution for vessel owners replacing older marine diesel engines.

Repower benefits include:

• Improved fuel economy
• Modern electronic controls
• Enhanced reliability
• Reduced maintenance requirements
• Better cruising performance
• Increased vessel value

Titan Marine Diesel provides expert support for repower projects, including engine selection, compatibility assessments, and technical guidance.

What’s Included with the Engine?

Depending on configuration, engine packages may include:

• Volvo Penta D6-300I marine diesel engine
• Engine wiring harness
• Electronic control system
• Instrumentation package
• Engine mounts
• Operator documentation
• Warranty documentation

Package contents may vary depending on vessel requirements and selected options.

Technical Features

• Electronically controlled common-rail fuel injection
• Double overhead camshafts
• Turbocharger with charge air cooler
• Electronic Vessel Control (EVC)
• Heavy-duty engine cover
• PTO capability
• Compact installation dimensions
• Easily accessible service points
• Robust marine-grade construction
• Advanced engine management system

Technical Specifications

Worldwide Shipping Available

Titan Marine Diesel supplies Volvo Penta marine engines worldwide for new vessel construction, commercial applications, and marine repower projects.

Available services include:

• Export crating
• International freight
• Port-to-port delivery
• Door-to-door shipping
• Export documentation support
• Global logistics coordination

Warranty Coverage

Every new Volvo Penta D6-300I supplied by Titan Marine Diesel includes manufacturer-backed warranty coverage, subject to Volvo Penta warranty registration requirements and applicable terms.

Extended warranty options may be available for qualifying recreational and commercial applications.

Frequently Asked Questions

What type of vessel is the Volvo Penta D6-300I best suited for?

The D6-300I is commonly installed in cruising yachts, trawlers, offshore fishing boats, commercial vessels, and marine repower projects.

Does the D6-300I support Electronic Vessel Control?

Yes. The engine is fully compatible with Volvo Penta’s Electronic Vessel Control (EVC) platform.

Is the D6-300I fuel efficient?

Yes. The advanced common-rail fuel injection system helps maximize fuel efficiency while maintaining strong performance.

Is the D6-300I suitable for repower projects?

Yes. Its compact dimensions, modern controls, and excellent reliability make it a popular repower solution.

How many cylinders does the D6-300I have?

The D6-300I features a 5.5-liter inline six-cylinder diesel engine configuration.

Can the engine be shipped internationally?

Yes. Titan Marine Diesel provides worldwide shipping and export logistics support.

Does the engine include warranty coverage?

Yes. Manufacturer-backed warranty coverage is included subject to Volvo Penta warranty registration requirements.

Request a Quote

Interested in the Volvo Penta D6-300I Marine Diesel Inboard Engine?

Contact Titan Marine Diesel today for availability, lead times, worldwide shipping options, technical guidance, and a customized quotation tailored to your vessel and propulsion requirements.