Cummins NT855-M300 Marine Engine
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Cummins NT855-M300 Marine Engine
Category:
Power:
224 kW (300 HP) @ 1800 RPM
Rating type:
Continuous Duty
Type:
In-line 6-cylinder, 4-stroke
Application:
Marine Propulsion
Packing Size:
2160×1100×1900
Weight:
2100kg
HS Code:
840810
Technical Specification of Cummins NT855-M300 Marine Engine
Engine Model
Cummins NT855-M300
Fuel System
PT Mechanical Fuel System
Rated Power
224 kW (300 HP)
Peak Engine Torque
1523 Nm @ 1500 RPM
Rated Speed
1800 RPM
Compression Ratio
14.5:1
Rating Type
Continuous Duty
Fuel Consumption at Rated Speed
68.9 L/h (18.2 gal/h)
Bore
140mm [5.5 in]
Cooling system
JWAC (Jacket Water Aftercooled)
Stroke
152mm [6.00in]
Firing Order
1-5-3-6-2-4
Aspriration
Turbocharged
Dry Weight
1306 kg (963 lb)
Displacement
14.0 L (855 in³)
Emission
IMO NOx Compliant
General Information of Cummins NT855-M300 Marine Engine
Cummins NT855-M Marine Engine | 300HP Continuous Duty Turbo Diesel for Workboats and Ferries
🧩 Product Description
The Cummins NT855-M300 is a rugged and time-tested 14-liter turbocharged marine diesel engine rated at 300 horsepower at 1800 RPM. It is designed for continuous duty in propulsion applications requiring full power for extended operation, such as commercial workboats, ferries, and patrol vessels.
With its mechanical PT fuel system, the NT855-M300 boat engine offers exceptional fuel efficiency, mechanical simplicity, and ease of maintenance. Manufactured by Chongqing Cummins Engine Co., Ltd., it represents the legacy of Cummins’ proven N-series platform — combining dependability with wide service availability worldwide.
⚙️ Specifications
- Engine Model: Cummins NT855-M300
- Configuration: In-line 6-cylinder, 4-stroke
- Displacement: 14.0 L (855 in³)
- Bore x Stroke: 140 mm x 152 mm
- Rated Power: 224 kW (300 HP) @ 1800 RPM
- Peak Torque: 1523 Nm @ 1500 RPM
- Aspiration: Turbocharged
- Fuel System: PT Mechanical Fuel System
- Rating Type: Continuous Duty (ISO 3046 Standard)
- Compression Ratio: 14.5:1
- Fuel Consumption @ 1800 RPM: 68.9 L/h (18.2 gal/h)
- Cooling System: JWAC (Jacket Water Aftercooled)
- Dry Weight (Engine Only): 1306 kg (963 lb)
- Dry Weight (with Heat Exchanger): 1385 kg (1013 lb)
- Emission Compliance: IMO NOx Compliant (MARPOL Annex VI)
- Max Exhaust Temperature (Turbine Out): 582°C (1080°F)
- Intake Air Flow: 593 L/sec
- Exhaust Flow: 650 L/sec
- Heat Rejection to Coolant: 62 kW
🌟 Product Advantages
- Continuous Duty Certified: Perfect for commercial vessels with prolonged daily operation.
- Robust and Field-Proven: Based on the Cummins N-series architecture known for its durability.
- Low Maintenance, High Uptime: Mechanical fuel system ensures fewer electronic failures.
- Wide Global Support: Genuine parts and service available through Cummins’ worldwide network.
-
IMO NOx Emission Compliant: Meets international marine environmental standards.
🔧 Key Features
- Turbocharged performance for increased air intake and cleaner combustion
- Mechanical PT injection system for easier maintenance and global fuel compatibility
- Reliable operation at high ambient temperatures and harsh marine conditions
- Rated for full power at 1800 RPM with strong torque output at low speeds
- Available with heat exchanger or keel cooling system
-
Modular design for simplified installation and integration
🚢 Applications
- Tugboats & Pushboats
- Coastal and River Ferries
- Commercial Fishing Boats
- Dredgers and Barges
- Patrol & Pilot Boats
-
Workboats in Harbors and Offshore Fields
📦 Product Availability
The Cummins NT855-M 300HP Marine Propulsion Engine is available for:
- Global export with short lead times
- Custom propulsion packages (gearbox, shaft line, etc.)
- Flexible cooling configurations (heat exchanger or keel cooling)
-
Genuine Cummins spare parts with full lifecycle service
📩 Contact our sales team today for a quote, lead time, or to discuss integration for your marine project.
Download of Cummins NT855-M300 Marine Engine Datasheet
Model
Power
Emission
Datasheet
Drawing
Service Manual
Cummins NT855-M300
224 kW (300 HP) @ 1800 RPM
IMO NOx Compliant
Download
Download
Download
Model
Cummins NT855-M300
Power
224 kW (300 HP) @ 1800 RPM
Emission
IMO NOx Compliant
Datasheet
Download
Drawing
Download
Service Manual
Download
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