Perkins M300C Marine Diesel Engine – 300 HP for Sale

High-Performance 6.6L Common Rail Marine Power | JB Marine GmbH

The Perkins M300C Marine Diesel Engine – 300 HP is a state-of-the-art 6.6-litre, 6-cylinder marine powerhouse, designed for performance, reliability, and superior fuel economy.
As part of the new generation of Perkins 1100 Series engines, the M300C delivers unmatched torque, low noise levels, and cleaner emissions, setting a new benchmark in marine propulsion technology.

Developed on a high-technology production line with continuous computerized quality checks, this model integrates advanced Caterpillar ACERT™ technology, a high-pressure common-rail fuel system, and optimized combustion geometry.
The result? An engine that is more powerful, quieter, and more fuel-efficient than ever before.

At JB Marine GmbH, we supply genuine Perkins marine engines across Germany and Europe, with manufacturer warranty, full after-sales support, and global service coverage.

Next-Generation Power & Performance

Built on Perkins’ proven marine platform, the M300C delivers 300 HP (225 kW) @ 2400 RPM and a peak torque of 1050 Nm @ 1400 RPM, providing excellent acceleration, rapid throttle response, and consistent high-speed cruising capability.

Its precision-engineered common-rail fuel injection system and electronic control unit (ECU) work together to ensure optimal combustion, reduced emissions, and smoother operation across all load conditions.

Performance Highlights

• 300 HP / 225 kW @ 2400 RPM rated marine power

• 6.6-litre displacement, 6-cylinder inline configuration

• High-pressure common-rail fuel system for improved torque and economy

• Turbocharged & aftercooled for consistent output at all speeds

• Peak torque 1050 Nm @ 1400 RPM – exceptional low-speed pulling power

• Meets EPA Tier 2, IMO, RCD & CCNR Stage 2 standards

The M300C is engineered for light-duty through heavy-duty applications, including patrol craft, commercial fishing vessels, survey boats, and long-range cruisers.

Advanced Common-Rail Technology with Caterpillar ACERT™ Integration

Incorporating components of Caterpillar ACERT™ technology, the M300C achieves world-class fuel efficiency and clean combustion while reducing heat rejection and emissions.

The common-rail injection system precisely meters fuel delivery across multiple injection events per cycle, resulting in better atomization, lower particulate output, and smoother idle performance.

Technical Advantages

• Multi-shot fuel injection for precise combustion

• Electronic cold-start control for improved reliability

• Optimized combustion chambers for efficient burn

• Low-heat-rejection design, reducing engine strain

• Bio-fuel compatible up to B20 and tolerant to jet aviation fuel or kerosene

This engine is designed for global fuel compatibility, making it ideal for international operators who require dependability and versatility across marine environments.

Quiet, Clean & Smooth Operation

The Perkins M300C is engineered to deliver quiet, refined performance across its full power range.
Acoustic optimization within the block design, gear train, and injection control reduces both airborne and structure-borne noise, resulting in a significantly quieter and smoother ride.

Noise & Vibration Control Features

• Advanced gear train design minimizes mechanical noise

• Turbocharger optimization reduces exhaust resonance

• Enclosed timing case and isolated sump for low vibration

• Noise reduction of up to 3 dBA compared to earlier models

• Clean exhaust with barely visible smoke output

The result: a quiet, efficient, and passenger-friendly marine propulsion experience, ideal for yachts, passenger carriers, and patrol vessels.

Superior Engineering & Quality Control

Each M300C is assembled on a high-precision automated line featuring real-time quality control at every stage.
Perkins engineers have redesigned key components for durability, including reinforced castings, optimized sub-assemblies, and improved sealing systems to enhance reliability and reduce service needs.

Engineering & Build Benefits

• Precision manufacturing with computerized inspection

• Rugged design built for extended marine service

• Optimized air & fuel management for higher efficiency

• Reduced component complexity for easier maintenance

Built under the same standards as Caterpillar industrial powerplants, the M300C ensures world-class durability and performance in all marine environments.

Ease of Installation & Application Flexibility

The M300C offers multiple configurations to suit both new builds and repower projects, ensuring easy integration with existing driveline systems.

Installation Advantages

• SAE 3 back-end mounting for flexible transmission selection

• Factory-fitted heat-exchanger or keel-cooling options

• Standard CuNi (cupro-nickel) charge-air cooler

• Compact design for tight engine rooms

• 90 A alternator with insulated electrics and J1939 diagnostics

Perkins’ “common platform” approach ensures the M300C fits standard mounting points and connections, minimizing installation time and costs.

Low Operating Costs & Long Service Intervals

The M300C is designed for maximum uptime, offering 500-hour service intervals and simplified maintenance access.
Improved combustion and fuel efficiency mean lower running costs, while the 2-year/3000-hour warranty provides long-term protection.

Operational Benefits

• 500-hour standard service intervals

• Up to 6 % improved fuel economy

• 2-year comprehensive warranty (3 years on majors)

• TIPSS – The Integrated Parts & Service System for digital support

• Global service coverage across 160 countries

JB Marine GmbH ensures every Perkins customer receives full warranty registration, spare parts access, and technical assistance worldwide.

Standard Equipment

• 500-hour maintenance schedule

• Freshwater heat exchanger or keel-cooling option

• Gear-driven self-priming raw-water & coolant pumps

• Integrated oil cooler & water-cooled exhaust manifold

• Common-rail fuel system with twin filters & water alarm

• Electronic governor with fault diagnostics (J1939)

• CuNi charge-air cooler

• 90 A 12 V alternator & starter motor

• US Coast Guard / MCA / RCD-approved fuel & oil lines

• Dry wrapped turbocharger & filtered crankcase breather

Optional Equipment

• 24 V starting system

• 55 A & 100 A 24 V alternators or 175 A 12 V alternator

• Analog & digital display panels with alarms & gauges

• Marine transmission adaptation kits (ZF / PRM / Twin Disc / Borg Warner)

• Dry or wet exhaust elbows

• Anti-vibration mounts & flexible couplings

• Crankshaft PTO extension shaft with pulley drive

• Factory-installed gearbox & oil cooler

These configuration options make the M300C an extremely versatile marine engine platform suitable for multiple duty cycles.

Technical Specifications – Perkins M300C Marine Diesel Engine

Warranty & Global Product Support – JB Marine GmbH

Every Perkins M300C engine purchased through JB Marine GmbH is covered by a 2-year / 3000-hour comprehensive warranty, with 3 years on major components.

Customers also benefit from Perkins’ worldwide service network, over 4000 distributors in 160 countries, with 24-hour access to 50,000+ genuine parts and TIPSS digital maintenance tools.

Support Highlights

• Full manufacturer warranty

• 24/7 access to service & replacement parts

• Online technical manuals & electronic diagnostics

• Professional consultation for installation & operation

JB Marine GmbH ensures that every Perkins engine owner receives end-to-end support, from delivery to long-term operation.

Why Choose JB Marine GmbH for Perkins Marine Engines

JB Marine GmbH is a trusted European supplier of Perkins and Vetus marine propulsion systems, offering expert guidance, authentic products, and full after-sales service.

Our Key Advantages

• Authorized Perkins Dealer – certified, genuine engines

• Expert Technical Guidance for configuration & setup

• Fast Shipping across Germany & Europe

• Comprehensive After-Sales Service – diagnostics, spare parts, warranty

• Customer-Focused Support – responsive and professional assistance

Partner with JB Marine GmbH for trusted Perkins engineering, backed by world-class technical expertise and support.

Order Your Perkins M300C Marine Diesel Engine – 300 HP Today

Looking for a high-output, common-rail marine diesel engine that delivers superior performance and longevity?
The Perkins M300C offers 300 horsepower of refined, efficient marine propulsion, backed by Perkins’ legendary reliability and JB Marine GmbH’s professional support.

 Visit JBMarineGmbH.de to request a quote, technical data, or installation guidance.
Experience next-generation marine propulsion — engineered by Perkins, supported by JB Marine GmbH.